
pharmacokineticsPoly

seed_ := 25$

NUMBER OF EQUATIONS$

n_ := 7$

VARIABLES VECTOR$

b_ := {x1,
x2,
x3,
x4,
xi1,
y1,
y2}$

UNKNOWN PARAMETER(S) VECTOR$

b1_ := {a1,
a2,
b1,
b2,
ka,
kc,
vm}$

RANKING AMONG THE VARIABLES$

bb_ := {x1,
x2,
df(x1,t),
df(x2,t),
df(x1,t,2),
df(x2,t,2),
df(x1,t,3),
df(x2,t,3),
df(x1,t,4),
df(x2,t,4),
df(x1,t,5),
df(x2,t,5),
x3,
x4,
xi1,
y1,
y2,
df(x3,t),
df(x4,t),
df(xi1,t),
df(y1,t),
df(y2,t)}$

NUMBER OF INPUT(S)$

nu_ := 0$

NUMBER OF OUTPUT(S)$

ny_ := 2$

NUMBER OF STATE(S) $

nx_ := 5$

MODEL EQUATION(S)$

c_ := {df(x1,t)= - (x1 - x2)*a1 - ka*vm*x1*xi1,
df(x2,t)=(x1 - x2)*a2,
df(x3,t)= - (x3 - x4)*b1 - kc*vm*x3*xi1,
df(x4,t)=(x3 - x4)*b2,
df(xi1,t)=((ka**2*x1 + kc**2*x3)*vm*xi1 + (x3 - x4)*b1*kc)*xi1**2 + (x1 - x2)*a1*ka*xi1**2,
y1=x1,
y2=x4}$

CHARACTERISTIC SET$

aa_(1) := df(x2,t) - x1*a2 + x2*a2$

aa_(2) := df(x1,t,4)*df(x1,t,2)*df(x1,t)**12*x1**3*ka*vm + 12*df(x1,t,4)*df(x1,t,2)*df(x1,t)**11*x1**4*a1*ka*vm - 12*df(
x1,t,4)*df(x1,t,2)*df(x1,t)**11*x1**3*x2*a1*ka*vm + 66*df(x1,t,4)*df(x1,t,2)*df(x1,t)**10*x1**5*a1**2*ka*vm - 132*df(x1,
t,4)*df(x1,t,2)*df(x1,t)**10*x1**4*x2*a1**2*ka*vm + 66*df(x1,t,4)*df(x1,t,2)*df(x1,t)**10*x1**3*x2**2*a1**2*ka*vm + 220*
df(x1,t,4)*df(x1,t,2)*df(x1,t)**9*x1**6*a1**3*ka*vm - 660*df(x1,t,4)*df(x1,t,2)*df(x1,t)**9*x1**5*x2*a1**3*ka*vm + 660*
df(x1,t,4)*df(x1,t,2)*df(x1,t)**9*x1**4*x2**2*a1**3*ka*vm - 220*df(x1,t,4)*df(x1,t,2)*df(x1,t)**9*x1**3*x2**3*a1**3*ka*
vm + 495*df(x1,t,4)*df(x1,t,2)*df(x1,t)**8*x1**7*a1**4*ka*vm - 1980*df(x1,t,4)*df(x1,t,2)*df(x1,t)**8*x1**6*x2*a1**4*ka*
vm + 2970*df(x1,t,4)*df(x1,t,2)*df(x1,t)**8*x1**5*x2**2*a1**4*ka*vm - 1980*df(x1,t,4)*df(x1,t,2)*df(x1,t)**8*x1**4*x2**3
*a1**4*ka*vm + 495*df(x1,t,4)*df(x1,t,2)*df(x1,t)**8*x1**3*x2**4*a1**4*ka*vm + 792*df(x1,t,4)*df(x1,t,2)*df(x1,t)**7*x1
**8*a1**5*ka*vm - 3960*df(x1,t,4)*df(x1,t,2)*df(x1,t)**7*x1**7*x2*a1**5*ka*vm + 7920*df(x1,t,4)*df(x1,t,2)*df(x1,t)**7*
x1**6*x2**2*a1**5*ka*vm - 7920*df(x1,t,4)*df(x1,t,2)*df(x1,t)**7*x1**5*x2**3*a1**5*ka*vm + 3960*df(x1,t,4)*df(x1,t,2)*df
(x1,t)**7*x1**4*x2**4*a1**5*ka*vm - 792*df(x1,t,4)*df(x1,t,2)*df(x1,t)**7*x1**3*x2**5*a1**5*ka*vm + 924*df(x1,t,4)*df(x1
,t,2)*df(x1,t)**6*x1**9*a1**6*ka*vm - 5544*df(x1,t,4)*df(x1,t,2)*df(x1,t)**6*x1**8*x2*a1**6*ka*vm + 13860*df(x1,t,4)*df(
x1,t,2)*df(x1,t)**6*x1**7*x2**2*a1**6*ka*vm - 18480*df(x1,t,4)*df(x1,t,2)*df(x1,t)**6*x1**6*x2**3*a1**6*ka*vm + 13860*df
(x1,t,4)*df(x1,t,2)*df(x1,t)**6*x1**5*x2**4*a1**6*ka*vm - 5544*df(x1,t,4)*df(x1,t,2)*df(x1,t)**6*x1**4*x2**5*a1**6*ka*vm
 + 924*df(x1,t,4)*df(x1,t,2)*df(x1,t)**6*x1**3*x2**6*a1**6*ka*vm + 792*df(x1,t,4)*df(x1,t,2)*df(x1,t)**5*x1**10*a1**7*ka
*vm - 5544*df(x1,t,4)*df(x1,t,2)*df(x1,t)**5*x1**9*x2*a1**7*ka*vm + 16632*df(x1,t,4)*df(x1,t,2)*df(x1,t)**5*x1**8*x2**2*
a1**7*ka*vm - 27720*df(x1,t,4)*df(x1,t,2)*df(x1,t)**5*x1**7*x2**3*a1**7*ka*vm + 27720*df(x1,t,4)*df(x1,t,2)*df(x1,t)**5*
x1**6*x2**4*a1**7*ka*vm - 16632*df(x1,t,4)*df(x1,t,2)*df(x1,t)**5*x1**5*x2**5*a1**7*ka*vm + 5544*df(x1,t,4)*df(x1,t,2)*
df(x1,t)**5*x1**4*x2**6*a1**7*ka*vm - 792*df(x1,t,4)*df(x1,t,2)*df(x1,t)**5*x1**3*x2**7*a1**7*ka*vm + 495*df(x1,t,4)*df(
x1,t,2)*df(x1,t)**4*x1**11*a1**8*ka*vm - 3960*df(x1,t,4)*df(x1,t,2)*df(x1,t)**4*x1**10*x2*a1**8*ka*vm + 13860*df(x1,t,4)
*df(x1,t,2)*df(x1,t)**4*x1**9*x2**2*a1**8*ka*vm - 27720*df(x1,t,4)*df(x1,t,2)*df(x1,t)**4*x1**8*x2**3*a1**8*ka*vm + 
34650*df(x1,t,4)*df(x1,t,2)*df(x1,t)**4*x1**7*x2**4*a1**8*ka*vm - 27720*df(x1,t,4)*df(x1,t,2)*df(x1,t)**4*x1**6*x2**5*a1
**8*ka*vm + 13860*df(x1,t,4)*df(x1,t,2)*df(x1,t)**4*x1**5*x2**6*a1**8*ka*vm - 3960*df(x1,t,4)*df(x1,t,2)*df(x1,t)**4*x1
**4*x2**7*a1**8*ka*vm + 495*df(x1,t,4)*df(x1,t,2)*df(x1,t)**4*x1**3*x2**8*a1**8*ka*vm + 220*df(x1,t,4)*df(x1,t,2)*df(x1,
t)**3*x1**12*a1**9*ka*vm - 1980*df(x1,t,4)*df(x1,t,2)*df(x1,t)**3*x1**11*x2*a1**9*ka*vm + 7920*df(x1,t,4)*df(x1,t,2)*df(
x1,t)**3*x1**10*x2**2*a1**9*ka*vm - 18480*df(x1,t,4)*df(x1,t,2)*df(x1,t)**3*x1**9*x2**3*a1**9*ka*vm + 27720*df(x1,t,4)*
df(x1,t,2)*df(x1,t)**3*x1**8*x2**4*a1**9*ka*vm - 27720*df(x1,t,4)*df(x1,t,2)*df(x1,t)**3*x1**7*x2**5*a1**9*ka*vm + 18480
*df(x1,t,4)*df(x1,t,2)*df(x1,t)**3*x1**6*x2**6*a1**9*ka*vm - 7920*df(x1,t,4)*df(x1,t,2)*df(x1,t)**3*x1**5*x2**7*a1**9*ka
*vm + 1980*df(x1,t,4)*df(x1,t,2)*df(x1,t)**3*x1**4*x2**8*a1**9*ka*vm - 220*df(x1,t,4)*df(x1,t,2)*df(x1,t)**3*x1**3*x2**9
*a1**9*ka*vm + 66*df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**13*a1**10*ka*vm - 660*df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**12*
x2*a1**10*ka*vm + 2970*df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**11*x2**2*a1**10*ka*vm - 7920*df(x1,t,4)*df(x1,t,2)*df(x1,t)
**2*x1**10*x2**3*a1**10*ka*vm + 13860*df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**9*x2**4*a1**10*ka*vm - 16632*df(x1,t,4)*df(
x1,t,2)*df(x1,t)**2*x1**8*x2**5*a1**10*ka*vm + 13860*df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**7*x2**6*a1**10*ka*vm - 7920*
df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**6*x2**7*a1**10*ka*vm + 2970*df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**5*x2**8*a1**10*
ka*vm - 660*df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**4*x2**9*a1**10*ka*vm + 66*df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**3*x2**
10*a1**10*ka*vm + 12*df(x1,t,4)*df(x1,t,2)*df(x1,t)*x1**14*a1**11*ka*vm - 132*df(x1,t,4)*df(x1,t,2)*df(x1,t)*x1**13*x2*
a1**11*ka*vm + 660*df(x1,t,4)*df(x1,t,2)*df(x1,t)*x1**12*x2**2*a1**11*ka*vm - 1980*df(x1,t,4)*df(x1,t,2)*df(x1,t)*x1**11
*x2**3*a1**11*ka*vm + 3960*df(x1,t,4)*df(x1,t,2)*df(x1,t)*x1**10*x2**4*a1**11*ka*vm - 5544*df(x1,t,4)*df(x1,t,2)*df(x1,t
)*x1**9*x2**5*a1**11*ka*vm + 5544*df(x1,t,4)*df(x1,t,2)*df(x1,t)*x1**8*x2**6*a1**11*ka*vm - 3960*df(x1,t,4)*df(x1,t,2)*
df(x1,t)*x1**7*x2**7*a1**11*ka*vm + 1980*df(x1,t,4)*df(x1,t,2)*df(x1,t)*x1**6*x2**8*a1**11*ka*vm - 660*df(x1,t,4)*df(x1,
t,2)*df(x1,t)*x1**5*x2**9*a1**11*ka*vm + 132*df(x1,t,4)*df(x1,t,2)*df(x1,t)*x1**4*x2**10*a1**11*ka*vm - 12*df(x1,t,4)*df
(x1,t,2)*df(x1,t)*x1**3*x2**11*a1**11*ka*vm + df(x1,t,4)*df(x1,t,2)*x1**15*a1**12*ka*vm - 12*df(x1,t,4)*df(x1,t,2)*x1**
14*x2*a1**12*ka*vm + 66*df(x1,t,4)*df(x1,t,2)*x1**13*x2**2*a1**12*ka*vm - 220*df(x1,t,4)*df(x1,t,2)*x1**12*x2**3*a1**12*
ka*vm + 495*df(x1,t,4)*df(x1,t,2)*x1**11*x2**4*a1**12*ka*vm - 792*df(x1,t,4)*df(x1,t,2)*x1**10*x2**5*a1**12*ka*vm + 924*
df(x1,t,4)*df(x1,t,2)*x1**9*x2**6*a1**12*ka*vm - 792*df(x1,t,4)*df(x1,t,2)*x1**8*x2**7*a1**12*ka*vm + 495*df(x1,t,4)*df(
x1,t,2)*x1**7*x2**8*a1**12*ka*vm - 220*df(x1,t,4)*df(x1,t,2)*x1**6*x2**9*a1**12*ka*vm + 66*df(x1,t,4)*df(x1,t,2)*x1**5*
x2**10*a1**12*ka*vm - 12*df(x1,t,4)*df(x1,t,2)*x1**4*x2**11*a1**12*ka*vm + df(x1,t,4)*df(x1,t,2)*x1**3*x2**12*a1**12*ka*
vm - df(x1,t,4)*df(x1,t)**14*x1**2*ka*vm + df(x1,t,4)*df(x1,t)**13*x1**3*ka*vm*( - 12*a1 + b2) + 13*df(x1,t,4)*df(x1,t)
**13*x1**2*x2*a1*ka*vm + df(x1,t,4)*df(x1,t)**12*x1**4*a1*ka*vm*( - 66*a1 - a2 + 13*b2) + df(x1,t,4)*df(x1,t)**12*x1**3*
x2*a1*ka*vm*(144*a1 + a2 - 13*b2) - 78*df(x1,t,4)*df(x1,t)**12*x1**2*x2**2*a1**2*ka*vm + 2*df(x1,t,4)*df(x1,t)**11*x1**5
*a1**2*ka*vm*( - 110*a1 - 6*a2 + 39*b2) + 6*df(x1,t,4)*df(x1,t)**11*x1**4*x2*a1**2*ka*vm*(121*a1 + 4*a2 - 26*b2) + 6*df(
x1,t,4)*df(x1,t)**11*x1**3*x2**2*a1**2*ka*vm*( - 132*a1 - 2*a2 + 13*b2) + 286*df(x1,t,4)*df(x1,t)**11*x1**2*x2**3*a1**3*
ka*vm + 11*df(x1,t,4)*df(x1,t)**10*x1**6*a1**3*ka*vm*( - 45*a1 - 6*a2 + 26*b2) + 22*df(x1,t,4)*df(x1,t)**10*x1**5*x2*a1
**3*ka*vm*(100*a1 + 9*a2 - 39*b2) + 66*df(x1,t,4)*df(x1,t)**10*x1**4*x2**2*a1**3*ka*vm*( - 55*a1 - 3*a2 + 13*b2) + 22*df
(x1,t,4)*df(x1,t)**10*x1**3*x2**3*a1**3*ka*vm*(120*a1 + 3*a2 - 13*b2) - 715*df(x1,t,4)*df(x1,t)**10*x1**2*x2**4*a1**4*ka
*vm + 11*df(x1,t,4)*df(x1,t)**9*x1**7*a1**4*ka*vm*( - 72*a1 - 20*a2 + 65*b2) + 55*df(x1,t,4)*df(x1,t)**9*x1**6*x2*a1**4*
ka*vm*(81*a1 + 16*a2 - 52*b2) + 330*df(x1,t,4)*df(x1,t)**9*x1**5*x2**2*a1**4*ka*vm*( - 30*a1 - 4*a2 + 13*b2) + 110*df(x1
,t,4)*df(x1,t)**9*x1**4*x2**3*a1**4*ka*vm*(99*a1 + 8*a2 - 26*b2) + 55*df(x1,t,4)*df(x1,t)**9*x1**3*x2**4*a1**4*ka*vm*( -
 108*a1 - 4*a2 + 13*b2) + 1287*df(x1,t,4)*df(x1,t)**9*x1**2*x2**5*a1**5*ka*vm + 33*df(x1,t,4)*df(x1,t)**8*x1**8*a1**5*ka
*vm*( - 28*a1 - 15*a2 + 39*b2) + 99*df(x1,t,4)*df(x1,t)**8*x1**7*x2*a1**5*ka*vm*(64*a1 + 25*a2 - 65*b2) + 990*df(x1,t,4)
*df(x1,t)**8*x1**6*x2**2*a1**5*ka*vm*( - 18*a1 - 5*a2 + 13*b2) + 330*df(x1,t,4)*df(x1,t)**8*x1**5*x2**3*a1**5*ka*vm*(80*
a1 + 15*a2 - 39*b2) + 495*df(x1,t,4)*df(x1,t)**8*x1**4*x2**4*a1**5*ka*vm*( - 44*a1 - 5*a2 + 13*b2) + 99*df(x1,t,4)*df(x1
,t)**8*x1**3*x2**5*a1**5*ka*vm*(96*a1 + 5*a2 - 13*b2) - 1716*df(x1,t,4)*df(x1,t)**8*x1**2*x2**6*a1**6*ka*vm + 132*df(x1,
t,4)*df(x1,t)**7*x1**9*a1**6*ka*vm*( - 6*a1 - 6*a2 + 13*b2) + 132*df(x1,t,4)*df(x1,t)**7*x1**8*x2*a1**6*ka*vm*(49*a1 + 
36*a2 - 78*b2) + 396*df(x1,t,4)*df(x1,t)**7*x1**7*x2**2*a1**6*ka*vm*( - 56*a1 - 30*a2 + 65*b2) + 660*df(x1,t,4)*df(x1,t)
**7*x1**6*x2**3*a1**6*ka*vm*(63*a1 + 24*a2 - 52*b2) + 660*df(x1,t,4)*df(x1,t)**7*x1**5*x2**4*a1**6*ka*vm*( - 70*a1 - 18*
a2 + 39*b2) + 396*df(x1,t,4)*df(x1,t)**7*x1**4*x2**5*a1**6*ka*vm*(77*a1 + 12*a2 - 26*b2) + 132*df(x1,t,4)*df(x1,t)**7*x1
**3*x2**6*a1**6*ka*vm*( - 84*a1 - 6*a2 + 13*b2) + 1716*df(x1,t,4)*df(x1,t)**7*x1**2*x2**7*a1**7*ka*vm + 33*df(x1,t,4)*df
(x1,t)**6*x1**10*a1**7*ka*vm*( - 15*a1 - 28*a2 + 52*b2) + 132*df(x1,t,4)*df(x1,t)**6*x1**9*x2*a1**7*ka*vm*(36*a1 + 49*a2
 - 91*b2) + 2772*df(x1,t,4)*df(x1,t)**6*x1**8*x2**2*a1**7*ka*vm*( - 7*a1 - 7*a2 + 13*b2) + 924*df(x1,t,4)*df(x1,t)**6*x1
**7*x2**3*a1**7*ka*vm*(48*a1 + 35*a2 - 65*b2) + 2310*df(x1,t,4)*df(x1,t)**6*x1**6*x2**4*a1**7*ka*vm*( - 27*a1 - 14*a2 + 
26*b2) + 2772*df(x1,t,4)*df(x1,t)**6*x1**5*x2**5*a1**7*ka*vm*(20*a1 + 7*a2 - 13*b2) + 924*df(x1,t,4)*df(x1,t)**6*x1**4*
x2**6*a1**7*ka*vm*( - 33*a1 - 7*a2 + 13*b2) + 132*df(x1,t,4)*df(x1,t)**6*x1**3*x2**7*a1**7*ka*vm*(72*a1 + 7*a2 - 13*b2) 
- 1287*df(x1,t,4)*df(x1,t)**6*x1**2*x2**8*a1**8*ka*vm + 11*df(x1,t,4)*df(x1,t)**5*x1**11*a1**8*ka*vm*( - 20*a1 - 72*a2 +
 117*b2) + 99*df(x1,t,4)*df(x1,t)**5*x1**10*x2*a1**8*ka*vm*(25*a1 + 64*a2 - 104*b2) + 396*df(x1,t,4)*df(x1,t)**5*x1**9*
x2**2*a1**8*ka*vm*( - 30*a1 - 56*a2 + 91*b2) + 924*df(x1,t,4)*df(x1,t)**5*x1**8*x2**3*a1**8*ka*vm*(35*a1 + 48*a2 - 78*b2
) + 6930*df(x1,t,4)*df(x1,t)**5*x1**7*x2**4*a1**8*ka*vm*( - 8*a1 - 8*a2 + 13*b2) + 1386*df(x1,t,4)*df(x1,t)**5*x1**6*x2
**5*a1**8*ka*vm*(45*a1 + 32*a2 - 52*b2) + 924*df(x1,t,4)*df(x1,t)**5*x1**5*x2**6*a1**8*ka*vm*( - 50*a1 - 24*a2 + 39*b2) 
+ 396*df(x1,t,4)*df(x1,t)**5*x1**4*x2**7*a1**8*ka*vm*(55*a1 + 16*a2 - 26*b2) + 99*df(x1,t,4)*df(x1,t)**5*x1**3*x2**8*a1
**8*ka*vm*( - 60*a1 - 8*a2 + 13*b2) + 715*df(x1,t,4)*df(x1,t)**5*x1**2*x2**9*a1**9*ka*vm + 11*df(x1,t,4)*df(x1,t)**4*x1
**12*a1**9*ka*vm*( - 6*a1 - 45*a2 + 65*b2) + 55*df(x1,t,4)*df(x1,t)**4*x1**11*x2*a1**9*ka*vm*(16*a1 + 81*a2 - 117*b2) + 
990*df(x1,t,4)*df(x1,t)**4*x1**10*x2**2*a1**9*ka*vm*( - 5*a1 - 18*a2 + 26*b2) + 660*df(x1,t,4)*df(x1,t)**4*x1**9*x2**3*
a1**9*ka*vm*(24*a1 + 63*a2 - 91*b2) + 2310*df(x1,t,4)*df(x1,t)**4*x1**8*x2**4*a1**9*ka*vm*( - 14*a1 - 27*a2 + 39*b2) + 
1386*df(x1,t,4)*df(x1,t)**4*x1**7*x2**5*a1**9*ka*vm*(32*a1 + 45*a2 - 65*b2) + 4620*df(x1,t,4)*df(x1,t)**4*x1**6*x2**6*a1
**9*ka*vm*( - 9*a1 - 9*a2 + 13*b2) + 660*df(x1,t,4)*df(x1,t)**4*x1**5*x2**7*a1**9*ka*vm*(40*a1 + 27*a2 - 39*b2) + 495*df
(x1,t,4)*df(x1,t)**4*x1**4*x2**8*a1**9*ka*vm*( - 22*a1 - 9*a2 + 13*b2) + 55*df(x1,t,4)*df(x1,t)**4*x1**3*x2**9*a1**9*ka*
vm*(48*a1 + 9*a2 - 13*b2) - 286*df(x1,t,4)*df(x1,t)**4*x1**2*x2**10*a1**10*ka*vm + 2*df(x1,t,4)*df(x1,t)**3*x1**13*a1**
10*ka*vm*( - 6*a1 - 110*a2 + 143*b2) + 22*df(x1,t,4)*df(x1,t)**3*x1**12*x2*a1**10*ka*vm*(9*a1 + 100*a2 - 130*b2) + 330*
df(x1,t,4)*df(x1,t)**3*x1**11*x2**2*a1**10*ka*vm*( - 4*a1 - 30*a2 + 39*b2) + 330*df(x1,t,4)*df(x1,t)**3*x1**10*x2**3*a1
**10*ka*vm*(15*a1 + 80*a2 - 104*b2) + 660*df(x1,t,4)*df(x1,t)**3*x1**9*x2**4*a1**10*ka*vm*( - 18*a1 - 70*a2 + 91*b2) + 
2772*df(x1,t,4)*df(x1,t)**3*x1**8*x2**5*a1**10*ka*vm*(7*a1 + 20*a2 - 26*b2) + 924*df(x1,t,4)*df(x1,t)**3*x1**7*x2**6*a1
**10*ka*vm*( - 24*a1 - 50*a2 + 65*b2) + 660*df(x1,t,4)*df(x1,t)**3*x1**6*x2**7*a1**10*ka*vm*(27*a1 + 40*a2 - 52*b2) + 
990*df(x1,t,4)*df(x1,t)**3*x1**5*x2**8*a1**10*ka*vm*( - 10*a1 - 10*a2 + 13*b2) + 110*df(x1,t,4)*df(x1,t)**3*x1**4*x2**9*
a1**10*ka*vm*(33*a1 + 20*a2 - 26*b2) + 22*df(x1,t,4)*df(x1,t)**3*x1**3*x2**10*a1**10*ka*vm*( - 36*a1 - 10*a2 + 13*b2) + 
78*df(x1,t,4)*df(x1,t)**3*x1**2*x2**11*a1**11*ka*vm + df(x1,t,4)*df(x1,t)**2*x1**14*a1**11*ka*vm*( - a1 - 66*a2 + 78*b2)
 + 6*df(x1,t,4)*df(x1,t)**2*x1**13*x2*a1**11*ka*vm*(4*a1 + 121*a2 - 143*b2) + 66*df(x1,t,4)*df(x1,t)**2*x1**12*x2**2*a1
**11*ka*vm*( - 3*a1 - 55*a2 + 65*b2) + 110*df(x1,t,4)*df(x1,t)**2*x1**11*x2**3*a1**11*ka*vm*(8*a1 + 99*a2 - 117*b2) + 
495*df(x1,t,4)*df(x1,t)**2*x1**10*x2**4*a1**11*ka*vm*( - 5*a1 - 44*a2 + 52*b2) + 396*df(x1,t,4)*df(x1,t)**2*x1**9*x2**5*
a1**11*ka*vm*(12*a1 + 77*a2 - 91*b2) + 924*df(x1,t,4)*df(x1,t)**2*x1**8*x2**6*a1**11*ka*vm*( - 7*a1 - 33*a2 + 39*b2) + 
396*df(x1,t,4)*df(x1,t)**2*x1**7*x2**7*a1**11*ka*vm*(16*a1 + 55*a2 - 65*b2) + 495*df(x1,t,4)*df(x1,t)**2*x1**6*x2**8*a1
**11*ka*vm*( - 9*a1 - 22*a2 + 26*b2) + 110*df(x1,t,4)*df(x1,t)**2*x1**5*x2**9*a1**11*ka*vm*(20*a1 + 33*a2 - 39*b2) + 66*
df(x1,t,4)*df(x1,t)**2*x1**4*x2**10*a1**11*ka*vm*( - 11*a1 - 11*a2 + 13*b2) + 6*df(x1,t,4)*df(x1,t)**2*x1**3*x2**11*a1**
11*ka*vm*(24*a1 + 11*a2 - 13*b2) - 13*df(x1,t,4)*df(x1,t)**2*x1**2*x2**12*a1**12*ka*vm + df(x1,t,4)*df(x1,t)*x1**15*a1**
12*ka*vm*( - 12*a2 + 13*b2) + df(x1,t,4)*df(x1,t)*x1**14*x2*a1**12*ka*vm*(a1 + 144*a2 - 156*b2) + 6*df(x1,t,4)*df(x1,t)*
x1**13*x2**2*a1**12*ka*vm*( - 2*a1 - 132*a2 + 143*b2) + 22*df(x1,t,4)*df(x1,t)*x1**12*x2**3*a1**12*ka*vm*(3*a1 + 120*a2 
- 130*b2) + 55*df(x1,t,4)*df(x1,t)*x1**11*x2**4*a1**12*ka*vm*( - 4*a1 - 108*a2 + 117*b2) + 99*df(x1,t,4)*df(x1,t)*x1**10
*x2**5*a1**12*ka*vm*(5*a1 + 96*a2 - 104*b2) + 132*df(x1,t,4)*df(x1,t)*x1**9*x2**6*a1**12*ka*vm*( - 6*a1 - 84*a2 + 91*b2)
 + 132*df(x1,t,4)*df(x1,t)*x1**8*x2**7*a1**12*ka*vm*(7*a1 + 72*a2 - 78*b2) + 99*df(x1,t,4)*df(x1,t)*x1**7*x2**8*a1**12*
ka*vm*( - 8*a1 - 60*a2 + 65*b2) + 55*df(x1,t,4)*df(x1,t)*x1**6*x2**9*a1**12*ka*vm*(9*a1 + 48*a2 - 52*b2) + 22*df(x1,t,4)
*df(x1,t)*x1**5*x2**10*a1**12*ka*vm*( - 10*a1 - 36*a2 + 39*b2) + 6*df(x1,t,4)*df(x1,t)*x1**4*x2**11*a1**12*ka*vm*(11*a1 
+ 24*a2 - 26*b2) + df(x1,t,4)*df(x1,t)*x1**3*x2**12*a1**12*ka*vm*( - 12*a1 - 12*a2 + 13*b2) + df(x1,t,4)*df(x1,t)*x1**2*
x2**13*a1**13*ka*vm + df(x1,t,4)*x1**16*a1**13*ka*vm*( - a2 + b2) + 13*df(x1,t,4)*x1**15*x2*a1**13*ka*vm*(a2 - b2) + 78*
df(x1,t,4)*x1**14*x2**2*a1**13*ka*vm*( - a2 + b2) + 286*df(x1,t,4)*x1**13*x2**3*a1**13*ka*vm*(a2 - b2) + 715*df(x1,t,4)*
x1**12*x2**4*a1**13*ka*vm*( - a2 + b2) + 1287*df(x1,t,4)*x1**11*x2**5*a1**13*ka*vm*(a2 - b2) + 1716*df(x1,t,4)*x1**10*x2
**6*a1**13*ka*vm*( - a2 + b2) + 1716*df(x1,t,4)*x1**9*x2**7*a1**13*ka*vm*(a2 - b2) + 1287*df(x1,t,4)*x1**8*x2**8*a1**13*
ka*vm*( - a2 + b2) + 715*df(x1,t,4)*x1**7*x2**9*a1**13*ka*vm*(a2 - b2) + 286*df(x1,t,4)*x1**6*x2**10*a1**13*ka*vm*( - a2
 + b2) + 78*df(x1,t,4)*x1**5*x2**11*a1**13*ka*vm*(a2 - b2) + 13*df(x1,t,4)*x1**4*x2**12*a1**13*ka*vm*( - a2 + b2) + df(
x1,t,4)*x1**3*x2**13*a1**13*ka*vm*(a2 - b2) - df(x1,t,3)**2*df(x1,t)**12*x1**3*ka*vm - 12*df(x1,t,3)**2*df(x1,t)**11*x1
**4*a1*ka*vm + 12*df(x1,t,3)**2*df(x1,t)**11*x1**3*x2*a1*ka*vm - 66*df(x1,t,3)**2*df(x1,t)**10*x1**5*a1**2*ka*vm + 132*
df(x1,t,3)**2*df(x1,t)**10*x1**4*x2*a1**2*ka*vm - 66*df(x1,t,3)**2*df(x1,t)**10*x1**3*x2**2*a1**2*ka*vm - 220*df(x1,t,3)
**2*df(x1,t)**9*x1**6*a1**3*ka*vm + 660*df(x1,t,3)**2*df(x1,t)**9*x1**5*x2*a1**3*ka*vm - 660*df(x1,t,3)**2*df(x1,t)**9*
x1**4*x2**2*a1**3*ka*vm + 220*df(x1,t,3)**2*df(x1,t)**9*x1**3*x2**3*a1**3*ka*vm - 495*df(x1,t,3)**2*df(x1,t)**8*x1**7*a1
**4*ka*vm + 1980*df(x1,t,3)**2*df(x1,t)**8*x1**6*x2*a1**4*ka*vm - 2970*df(x1,t,3)**2*df(x1,t)**8*x1**5*x2**2*a1**4*ka*vm
 + 1980*df(x1,t,3)**2*df(x1,t)**8*x1**4*x2**3*a1**4*ka*vm - 495*df(x1,t,3)**2*df(x1,t)**8*x1**3*x2**4*a1**4*ka*vm - 792*
df(x1,t,3)**2*df(x1,t)**7*x1**8*a1**5*ka*vm + 3960*df(x1,t,3)**2*df(x1,t)**7*x1**7*x2*a1**5*ka*vm - 7920*df(x1,t,3)**2*
df(x1,t)**7*x1**6*x2**2*a1**5*ka*vm + 7920*df(x1,t,3)**2*df(x1,t)**7*x1**5*x2**3*a1**5*ka*vm - 3960*df(x1,t,3)**2*df(x1,
t)**7*x1**4*x2**4*a1**5*ka*vm + 792*df(x1,t,3)**2*df(x1,t)**7*x1**3*x2**5*a1**5*ka*vm - 924*df(x1,t,3)**2*df(x1,t)**6*x1
**9*a1**6*ka*vm + 5544*df(x1,t,3)**2*df(x1,t)**6*x1**8*x2*a1**6*ka*vm - 13860*df(x1,t,3)**2*df(x1,t)**6*x1**7*x2**2*a1**
6*ka*vm + 18480*df(x1,t,3)**2*df(x1,t)**6*x1**6*x2**3*a1**6*ka*vm - 13860*df(x1,t,3)**2*df(x1,t)**6*x1**5*x2**4*a1**6*ka
*vm + 5544*df(x1,t,3)**2*df(x1,t)**6*x1**4*x2**5*a1**6*ka*vm - 924*df(x1,t,3)**2*df(x1,t)**6*x1**3*x2**6*a1**6*ka*vm - 
792*df(x1,t,3)**2*df(x1,t)**5*x1**10*a1**7*ka*vm + 5544*df(x1,t,3)**2*df(x1,t)**5*x1**9*x2*a1**7*ka*vm - 16632*df(x1,t,3
)**2*df(x1,t)**5*x1**8*x2**2*a1**7*ka*vm + 27720*df(x1,t,3)**2*df(x1,t)**5*x1**7*x2**3*a1**7*ka*vm - 27720*df(x1,t,3)**2
*df(x1,t)**5*x1**6*x2**4*a1**7*ka*vm + 16632*df(x1,t,3)**2*df(x1,t)**5*x1**5*x2**5*a1**7*ka*vm - 5544*df(x1,t,3)**2*df(
x1,t)**5*x1**4*x2**6*a1**7*ka*vm + 792*df(x1,t,3)**2*df(x1,t)**5*x1**3*x2**7*a1**7*ka*vm - 495*df(x1,t,3)**2*df(x1,t)**4
*x1**11*a1**8*ka*vm + 3960*df(x1,t,3)**2*df(x1,t)**4*x1**10*x2*a1**8*ka*vm - 13860*df(x1,t,3)**2*df(x1,t)**4*x1**9*x2**2
*a1**8*ka*vm + 27720*df(x1,t,3)**2*df(x1,t)**4*x1**8*x2**3*a1**8*ka*vm - 34650*df(x1,t,3)**2*df(x1,t)**4*x1**7*x2**4*a1
**8*ka*vm + 27720*df(x1,t,3)**2*df(x1,t)**4*x1**6*x2**5*a1**8*ka*vm - 13860*df(x1,t,3)**2*df(x1,t)**4*x1**5*x2**6*a1**8*
ka*vm + 3960*df(x1,t,3)**2*df(x1,t)**4*x1**4*x2**7*a1**8*ka*vm - 495*df(x1,t,3)**2*df(x1,t)**4*x1**3*x2**8*a1**8*ka*vm -
 220*df(x1,t,3)**2*df(x1,t)**3*x1**12*a1**9*ka*vm + 1980*df(x1,t,3)**2*df(x1,t)**3*x1**11*x2*a1**9*ka*vm - 7920*df(x1,t,
3)**2*df(x1,t)**3*x1**10*x2**2*a1**9*ka*vm + 18480*df(x1,t,3)**2*df(x1,t)**3*x1**9*x2**3*a1**9*ka*vm - 27720*df(x1,t,3)
**2*df(x1,t)**3*x1**8*x2**4*a1**9*ka*vm + 27720*df(x1,t,3)**2*df(x1,t)**3*x1**7*x2**5*a1**9*ka*vm - 18480*df(x1,t,3)**2*
df(x1,t)**3*x1**6*x2**6*a1**9*ka*vm + 7920*df(x1,t,3)**2*df(x1,t)**3*x1**5*x2**7*a1**9*ka*vm - 1980*df(x1,t,3)**2*df(x1,
t)**3*x1**4*x2**8*a1**9*ka*vm + 220*df(x1,t,3)**2*df(x1,t)**3*x1**3*x2**9*a1**9*ka*vm - 66*df(x1,t,3)**2*df(x1,t)**2*x1
**13*a1**10*ka*vm + 660*df(x1,t,3)**2*df(x1,t)**2*x1**12*x2*a1**10*ka*vm - 2970*df(x1,t,3)**2*df(x1,t)**2*x1**11*x2**2*
a1**10*ka*vm + 7920*df(x1,t,3)**2*df(x1,t)**2*x1**10*x2**3*a1**10*ka*vm - 13860*df(x1,t,3)**2*df(x1,t)**2*x1**9*x2**4*a1
**10*ka*vm + 16632*df(x1,t,3)**2*df(x1,t)**2*x1**8*x2**5*a1**10*ka*vm - 13860*df(x1,t,3)**2*df(x1,t)**2*x1**7*x2**6*a1**
10*ka*vm + 7920*df(x1,t,3)**2*df(x1,t)**2*x1**6*x2**7*a1**10*ka*vm - 2970*df(x1,t,3)**2*df(x1,t)**2*x1**5*x2**8*a1**10*
ka*vm + 660*df(x1,t,3)**2*df(x1,t)**2*x1**4*x2**9*a1**10*ka*vm - 66*df(x1,t,3)**2*df(x1,t)**2*x1**3*x2**10*a1**10*ka*vm 
- 12*df(x1,t,3)**2*df(x1,t)*x1**14*a1**11*ka*vm + 132*df(x1,t,3)**2*df(x1,t)*x1**13*x2*a1**11*ka*vm - 660*df(x1,t,3)**2*
df(x1,t)*x1**12*x2**2*a1**11*ka*vm + 1980*df(x1,t,3)**2*df(x1,t)*x1**11*x2**3*a1**11*ka*vm - 3960*df(x1,t,3)**2*df(x1,t)
*x1**10*x2**4*a1**11*ka*vm + 5544*df(x1,t,3)**2*df(x1,t)*x1**9*x2**5*a1**11*ka*vm - 5544*df(x1,t,3)**2*df(x1,t)*x1**8*x2
**6*a1**11*ka*vm + 3960*df(x1,t,3)**2*df(x1,t)*x1**7*x2**7*a1**11*ka*vm - 1980*df(x1,t,3)**2*df(x1,t)*x1**6*x2**8*a1**11
*ka*vm + 660*df(x1,t,3)**2*df(x1,t)*x1**5*x2**9*a1**11*ka*vm - 132*df(x1,t,3)**2*df(x1,t)*x1**4*x2**10*a1**11*ka*vm + 12
*df(x1,t,3)**2*df(x1,t)*x1**3*x2**11*a1**11*ka*vm - df(x1,t,3)**2*x1**15*a1**12*ka*vm + 12*df(x1,t,3)**2*x1**14*x2*a1**
12*ka*vm - 66*df(x1,t,3)**2*x1**13*x2**2*a1**12*ka*vm + 220*df(x1,t,3)**2*x1**12*x2**3*a1**12*ka*vm - 495*df(x1,t,3)**2*
x1**11*x2**4*a1**12*ka*vm + 792*df(x1,t,3)**2*x1**10*x2**5*a1**12*ka*vm - 924*df(x1,t,3)**2*x1**9*x2**6*a1**12*ka*vm + 
792*df(x1,t,3)**2*x1**8*x2**7*a1**12*ka*vm - 495*df(x1,t,3)**2*x1**7*x2**8*a1**12*ka*vm + 220*df(x1,t,3)**2*x1**6*x2**9*
a1**12*ka*vm - 66*df(x1,t,3)**2*x1**5*x2**10*a1**12*ka*vm + 12*df(x1,t,3)**2*x1**4*x2**11*a1**12*ka*vm - df(x1,t,3)**2*
x1**3*x2**12*a1**12*ka*vm - 4*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**11*x1**3*ka*vm - 44*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**
10*x1**4*a1*ka*vm + 44*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**10*x1**3*x2*a1*ka*vm - 220*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**
9*x1**5*a1**2*ka*vm + 440*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**9*x1**4*x2*a1**2*ka*vm - 220*df(x1,t,3)*df(x1,t,2)**2*df(x1
,t)**9*x1**3*x2**2*a1**2*ka*vm - 660*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**8*x1**6*a1**3*ka*vm + 1980*df(x1,t,3)*df(x1,t,2)
**2*df(x1,t)**8*x1**5*x2*a1**3*ka*vm - 1980*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**8*x1**4*x2**2*a1**3*ka*vm + 660*df(x1,t,3
)*df(x1,t,2)**2*df(x1,t)**8*x1**3*x2**3*a1**3*ka*vm - 1320*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**7*x1**7*a1**4*ka*vm + 5280
*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**7*x1**6*x2*a1**4*ka*vm - 7920*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**7*x1**5*x2**2*a1**4
*ka*vm + 5280*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**7*x1**4*x2**3*a1**4*ka*vm - 1320*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**7*
x1**3*x2**4*a1**4*ka*vm - 1848*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**6*x1**8*a1**5*ka*vm + 9240*df(x1,t,3)*df(x1,t,2)**2*df
(x1,t)**6*x1**7*x2*a1**5*ka*vm - 18480*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**6*x1**6*x2**2*a1**5*ka*vm + 18480*df(x1,t,3)*
df(x1,t,2)**2*df(x1,t)**6*x1**5*x2**3*a1**5*ka*vm - 9240*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**6*x1**4*x2**4*a1**5*ka*vm + 
1848*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**6*x1**3*x2**5*a1**5*ka*vm - 1848*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**5*x1**9*a1**
6*ka*vm + 11088*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**5*x1**8*x2*a1**6*ka*vm - 27720*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**5*
x1**7*x2**2*a1**6*ka*vm + 36960*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**5*x1**6*x2**3*a1**6*ka*vm - 27720*df(x1,t,3)*df(x1,t,
2)**2*df(x1,t)**5*x1**5*x2**4*a1**6*ka*vm + 11088*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**5*x1**4*x2**5*a1**6*ka*vm - 1848*df
(x1,t,3)*df(x1,t,2)**2*df(x1,t)**5*x1**3*x2**6*a1**6*ka*vm - 1320*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**4*x1**10*a1**7*ka*
vm + 9240*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**4*x1**9*x2*a1**7*ka*vm - 27720*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**4*x1**8*
x2**2*a1**7*ka*vm + 46200*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**4*x1**7*x2**3*a1**7*ka*vm - 46200*df(x1,t,3)*df(x1,t,2)**2*
df(x1,t)**4*x1**6*x2**4*a1**7*ka*vm + 27720*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**4*x1**5*x2**5*a1**7*ka*vm - 9240*df(x1,t,
3)*df(x1,t,2)**2*df(x1,t)**4*x1**4*x2**6*a1**7*ka*vm + 1320*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**4*x1**3*x2**7*a1**7*ka*vm
 - 660*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**3*x1**11*a1**8*ka*vm + 5280*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**3*x1**10*x2*a1
**8*ka*vm - 18480*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**3*x1**9*x2**2*a1**8*ka*vm + 36960*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)
**3*x1**8*x2**3*a1**8*ka*vm - 46200*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**3*x1**7*x2**4*a1**8*ka*vm + 36960*df(x1,t,3)*df(
x1,t,2)**2*df(x1,t)**3*x1**6*x2**5*a1**8*ka*vm - 18480*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**3*x1**5*x2**6*a1**8*ka*vm + 
5280*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**3*x1**4*x2**7*a1**8*ka*vm - 660*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**3*x1**3*x2**8
*a1**8*ka*vm - 220*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*x1**12*a1**9*ka*vm + 1980*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*
x1**11*x2*a1**9*ka*vm - 7920*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*x1**10*x2**2*a1**9*ka*vm + 18480*df(x1,t,3)*df(x1,t,2)
**2*df(x1,t)**2*x1**9*x2**3*a1**9*ka*vm - 27720*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*x1**8*x2**4*a1**9*ka*vm + 27720*df(
x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*x1**7*x2**5*a1**9*ka*vm - 18480*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*x1**6*x2**6*a1**9
*ka*vm + 7920*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*x1**5*x2**7*a1**9*ka*vm - 1980*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*
x1**4*x2**8*a1**9*ka*vm + 220*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*x1**3*x2**9*a1**9*ka*vm - 44*df(x1,t,3)*df(x1,t,2)**2
*df(x1,t)*x1**13*a1**10*ka*vm + 440*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)*x1**12*x2*a1**10*ka*vm - 1980*df(x1,t,3)*df(x1,t,2
)**2*df(x1,t)*x1**11*x2**2*a1**10*ka*vm + 5280*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)*x1**10*x2**3*a1**10*ka*vm - 9240*df(x1,
t,3)*df(x1,t,2)**2*df(x1,t)*x1**9*x2**4*a1**10*ka*vm + 11088*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)*x1**8*x2**5*a1**10*ka*vm 
- 9240*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)*x1**7*x2**6*a1**10*ka*vm + 5280*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)*x1**6*x2**7*
a1**10*ka*vm - 1980*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)*x1**5*x2**8*a1**10*ka*vm + 440*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)*
x1**4*x2**9*a1**10*ka*vm - 44*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)*x1**3*x2**10*a1**10*ka*vm - 4*df(x1,t,3)*df(x1,t,2)**2*
x1**14*a1**11*ka*vm + 44*df(x1,t,3)*df(x1,t,2)**2*x1**13*x2*a1**11*ka*vm - 220*df(x1,t,3)*df(x1,t,2)**2*x1**12*x2**2*a1
**11*ka*vm + 660*df(x1,t,3)*df(x1,t,2)**2*x1**11*x2**3*a1**11*ka*vm - 1320*df(x1,t,3)*df(x1,t,2)**2*x1**10*x2**4*a1**11*
ka*vm + 1848*df(x1,t,3)*df(x1,t,2)**2*x1**9*x2**5*a1**11*ka*vm - 1848*df(x1,t,3)*df(x1,t,2)**2*x1**8*x2**6*a1**11*ka*vm 
+ 1320*df(x1,t,3)*df(x1,t,2)**2*x1**7*x2**7*a1**11*ka*vm - 660*df(x1,t,3)*df(x1,t,2)**2*x1**6*x2**8*a1**11*ka*vm + 220*
df(x1,t,3)*df(x1,t,2)**2*x1**5*x2**9*a1**11*ka*vm - 44*df(x1,t,3)*df(x1,t,2)**2*x1**4*x2**10*a1**11*ka*vm + 4*df(x1,t,3)
*df(x1,t,2)**2*x1**3*x2**11*a1**11*ka*vm + 10*df(x1,t,3)*df(x1,t,2)*df(x1,t)**13*x1**2*ka*vm + 7*df(x1,t,3)*df(x1,t,2)*
df(x1,t)**12*x1**3*ka*vm*(16*a1 - b2) - 121*df(x1,t,3)*df(x1,t,2)*df(x1,t)**12*x1**2*x2*a1*ka*vm + 4*df(x1,t,3)*df(x1,t,
2)*df(x1,t)**11*x1**4*a1*ka*vm*(143*a1 + 2*a2 - 21*b2) + 4*df(x1,t,3)*df(x1,t,2)*df(x1,t)**11*x1**3*x2*a1*ka*vm*( - 311*
a1 - 2*a2 + 21*b2) + 672*df(x1,t,3)*df(x1,t,2)*df(x1,t)**11*x1**2*x2**2*a1**2*ka*vm + 22*df(x1,t,3)*df(x1,t,2)*df(x1,t)
**10*x1**5*a1**2*ka*vm*(80*a1 + 4*a2 - 21*b2) + 22*df(x1,t,3)*df(x1,t,2)*df(x1,t)**10*x1**4*x2*a1**2*ka*vm*( - 263*a1 - 
8*a2 + 42*b2) + 22*df(x1,t,3)*df(x1,t,2)*df(x1,t)**10*x1**3*x2**2*a1**2*ka*vm*(286*a1 + 4*a2 - 21*b2) - 2266*df(x1,t,3)*
df(x1,t,2)*df(x1,t)**10*x1**2*x2**3*a1**3*ka*vm + 110*df(x1,t,3)*df(x1,t,2)*df(x1,t)**9*x1**6*a1**3*ka*vm*(33*a1 + 4*a2 
- 14*b2) + 220*df(x1,t,3)*df(x1,t,2)*df(x1,t)**9*x1**5*x2*a1**3*ka*vm*( - 73*a1 - 6*a2 + 21*b2) + 660*df(x1,t,3)*df(x1,t
,2)*df(x1,t)**9*x1**4*x2**2*a1**3*ka*vm*(40*a1 + 2*a2 - 7*b2) + 220*df(x1,t,3)*df(x1,t,2)*df(x1,t)**9*x1**3*x2**3*a1**3*
ka*vm*( - 87*a1 - 2*a2 + 7*b2) + 5170*df(x1,t,3)*df(x1,t,2)*df(x1,t)**9*x1**2*x2**4*a1**4*ka*vm + 165*df(x1,t,3)*df(x1,t
,2)*df(x1,t)**8*x1**7*a1**4*ka*vm*(32*a1 + 8*a2 - 21*b2) + 165*df(x1,t,3)*df(x1,t,2)*df(x1,t)**8*x1**6*x2*a1**4*ka*vm*( 
- 179*a1 - 32*a2 + 84*b2) + 990*df(x1,t,3)*df(x1,t,2)*df(x1,t)**8*x1**5*x2**2*a1**4*ka*vm*(66*a1 + 8*a2 - 21*b2) + 330*
df(x1,t,3)*df(x1,t,2)*df(x1,t)**8*x1**4*x2**3*a1**4*ka*vm*( - 217*a1 - 16*a2 + 42*b2) + 165*df(x1,t,3)*df(x1,t,2)*df(x1,
t)**8*x1**3*x2**4*a1**4*ka*vm*(236*a1 + 8*a2 - 21*b2) - 8415*df(x1,t,3)*df(x1,t,2)*df(x1,t)**8*x1**2*x2**5*a1**5*ka*vm +
 264*df(x1,t,3)*df(x1,t,2)*df(x1,t)**7*x1**8*a1**5*ka*vm*(21*a1 + 10*a2 - 21*b2) + 264*df(x1,t,3)*df(x1,t,2)*df(x1,t)**7
*x1**7*x2*a1**5*ka*vm*( - 143*a1 - 50*a2 + 105*b2) + 2640*df(x1,t,3)*df(x1,t,2)*df(x1,t)**7*x1**6*x2**2*a1**5*ka*vm*(40*
a1 + 10*a2 - 21*b2) + 2640*df(x1,t,3)*df(x1,t,2)*df(x1,t)**7*x1**5*x2**3*a1**5*ka*vm*( - 59*a1 - 10*a2 + 21*b2) + 1320*
df(x1,t,3)*df(x1,t,2)*df(x1,t)**7*x1**4*x2**4*a1**5*ka*vm*(97*a1 + 10*a2 - 21*b2) + 264*df(x1,t,3)*df(x1,t,2)*df(x1,t)**
7*x1**3*x2**5*a1**5*ka*vm*( - 211*a1 - 10*a2 + 21*b2) + 10032*df(x1,t,3)*df(x1,t,2)*df(x1,t)**7*x1**2*x2**6*a1**6*ka*vm 
+ 132*df(x1,t,3)*df(x1,t,2)*df(x1,t)**6*x1**9*a1**6*ka*vm*(32*a1 + 28*a2 - 49*b2) + 924*df(x1,t,3)*df(x1,t,2)*df(x1,t)**
6*x1**8*x2*a1**6*ka*vm*( - 37*a1 - 24*a2 + 42*b2) + 2772*df(x1,t,3)*df(x1,t,2)*df(x1,t)**6*x1**7*x2**2*a1**6*ka*vm*(42*
a1 + 20*a2 - 35*b2) + 4620*df(x1,t,3)*df(x1,t,2)*df(x1,t)**6*x1**6*x2**3*a1**6*ka*vm*( - 47*a1 - 16*a2 + 28*b2) + 4620*
df(x1,t,3)*df(x1,t,2)*df(x1,t)**6*x1**5*x2**4*a1**6*ka*vm*(52*a1 + 12*a2 - 21*b2) + 2772*df(x1,t,3)*df(x1,t,2)*df(x1,t)
**6*x1**4*x2**5*a1**6*ka*vm*( - 57*a1 - 8*a2 + 14*b2) + 924*df(x1,t,3)*df(x1,t,2)*df(x1,t)**6*x1**3*x2**6*a1**6*ka*vm*(
62*a1 + 4*a2 - 7*b2) - 8844*df(x1,t,3)*df(x1,t,2)*df(x1,t)**6*x1**2*x2**7*a1**7*ka*vm + 462*df(x1,t,3)*df(x1,t,2)*df(x1,
t)**5*x1**10*a1**7*ka*vm*(5*a1 + 8*a2 - 12*b2) + 264*df(x1,t,3)*df(x1,t,2)*df(x1,t)**5*x1**9*x2*a1**7*ka*vm*( - 83*a1 - 
98*a2 + 147*b2) + 5544*df(x1,t,3)*df(x1,t,2)*df(x1,t)**5*x1**8*x2**2*a1**7*ka*vm*(16*a1 + 14*a2 - 21*b2) + 1848*df(x1,t,
3)*df(x1,t,2)*df(x1,t)**5*x1**7*x2**3*a1**7*ka*vm*( - 109*a1 - 70*a2 + 105*b2) + 4620*df(x1,t,3)*df(x1,t,2)*df(x1,t)**5*
x1**6*x2**4*a1**7*ka*vm*(61*a1 + 28*a2 - 42*b2) + 5544*df(x1,t,3)*df(x1,t,2)*df(x1,t)**5*x1**5*x2**5*a1**7*ka*vm*( - 45*
a1 - 14*a2 + 21*b2) + 1848*df(x1,t,3)*df(x1,t,2)*df(x1,t)**5*x1**4*x2**6*a1**7*ka*vm*(74*a1 + 14*a2 - 21*b2) + 1848*df(
x1,t,3)*df(x1,t,2)*df(x1,t)**5*x1**3*x2**7*a1**7*ka*vm*( - 23*a1 - 2*a2 + 3*b2) + 5742*df(x1,t,3)*df(x1,t,2)*df(x1,t)**5
*x1**2*x2**8*a1**8*ka*vm + 55*df(x1,t,3)*df(x1,t,2)*df(x1,t)**4*x1**11*a1**8*ka*vm*(16*a1 + 48*a2 - 63*b2) + 165*df(x1,t
,3)*df(x1,t,2)*df(x1,t)**4*x1**10*x2*a1**8*ka*vm*( - 59*a1 - 128*a2 + 168*b2) + 4620*df(x1,t,3)*df(x1,t,2)*df(x1,t)**4*
x1**9*x2**2*a1**8*ka*vm*(10*a1 + 16*a2 - 21*b2) + 4620*df(x1,t,3)*df(x1,t,2)*df(x1,t)**4*x1**8*x2**3*a1**8*ka*vm*( - 27*
a1 - 32*a2 + 42*b2) + 2310*df(x1,t,3)*df(x1,t,2)*df(x1,t)**4*x1**7*x2**4*a1**8*ka*vm*(92*a1 + 80*a2 - 105*b2) + 2310*df(
x1,t,3)*df(x1,t,2)*df(x1,t)**4*x1**6*x2**5*a1**8*ka*vm*( - 103*a1 - 64*a2 + 84*b2) + 4620*df(x1,t,3)*df(x1,t,2)*df(x1,t)
**4*x1**5*x2**6*a1**8*ka*vm*(38*a1 + 16*a2 - 21*b2) + 660*df(x1,t,3)*df(x1,t,2)*df(x1,t)**4*x1**4*x2**7*a1**8*ka*vm*( - 
125*a1 - 32*a2 + 42*b2) + 165*df(x1,t,3)*df(x1,t,2)*df(x1,t)**4*x1**3*x2**8*a1**8*ka*vm*(136*a1 + 16*a2 - 21*b2) - 2695*
df(x1,t,3)*df(x1,t,2)*df(x1,t)**4*x1**2*x2**9*a1**9*ka*vm + 220*df(x1,t,3)*df(x1,t,2)*df(x1,t)**3*x1**12*a1**9*ka*vm*(a1
 + 6*a2 - 7*b2) + 220*df(x1,t,3)*df(x1,t,2)*df(x1,t)**3*x1**11*x2*a1**9*ka*vm*( - 13*a1 - 54*a2 + 63*b2) + 7920*df(x1,t,
3)*df(x1,t,2)*df(x1,t)**3*x1**10*x2**2*a1**9*ka*vm*(2*a1 + 6*a2 - 7*b2) + 2640*df(x1,t,3)*df(x1,t,2)*df(x1,t)**3*x1**9*
x2**3*a1**9*ka*vm*( - 19*a1 - 42*a2 + 49*b2) + 9240*df(x1,t,3)*df(x1,t,2)*df(x1,t)**3*x1**8*x2**4*a1**9*ka*vm*(11*a1 + 
18*a2 - 21*b2) + 27720*df(x1,t,3)*df(x1,t,2)*df(x1,t)**3*x1**7*x2**5*a1**9*ka*vm*( - 5*a1 - 6*a2 + 7*b2) + 18480*df(x1,t
,3)*df(x1,t,2)*df(x1,t)**3*x1**6*x2**6*a1**9*ka*vm*(7*a1 + 6*a2 - 7*b2) + 2640*df(x1,t,3)*df(x1,t,2)*df(x1,t)**3*x1**5*
x2**7*a1**9*ka*vm*( - 31*a1 - 18*a2 + 21*b2) + 1980*df(x1,t,3)*df(x1,t,2)*df(x1,t)**3*x1**4*x2**8*a1**9*ka*vm*(17*a1 + 6
*a2 - 7*b2) + 220*df(x1,t,3)*df(x1,t,2)*df(x1,t)**3*x1**3*x2**9*a1**9*ka*vm*( - 37*a1 - 6*a2 + 7*b2) + 880*df(x1,t,3)*df
(x1,t,2)*df(x1,t)**3*x1**2*x2**10*a1**10*ka*vm + 2*df(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**13*a1**10*ka*vm*(16*a1 + 220*a2
 - 231*b2) + 22*df(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**12*x2*a1**10*ka*vm*( - 23*a1 - 200*a2 + 210*b2) + 330*df(x1,t,3)*
df(x1,t,2)*df(x1,t)**2*x1**11*x2**2*a1**10*ka*vm*(10*a1 + 60*a2 - 63*b2) + 330*df(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**10*
x2**3*a1**10*ka*vm*( - 37*a1 - 160*a2 + 168*b2) + 660*df(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**9*x2**4*a1**10*ka*vm*(44*a1 
+ 140*a2 - 147*b2) + 2772*df(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**8*x2**5*a1**10*ka*vm*( - 17*a1 - 40*a2 + 42*b2) + 924*df
(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**7*x2**6*a1**10*ka*vm*(58*a1 + 100*a2 - 105*b2) + 660*df(x1,t,3)*df(x1,t,2)*df(x1,t)
**2*x1**6*x2**7*a1**10*ka*vm*( - 65*a1 - 80*a2 + 84*b2) + 990*df(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**5*x2**8*a1**10*ka*vm
*(24*a1 + 20*a2 - 21*b2) + 110*df(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**4*x2**9*a1**10*ka*vm*( - 79*a1 - 40*a2 + 42*b2) + 
22*df(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**3*x2**10*a1**10*ka*vm*(86*a1 + 20*a2 - 21*b2) - 186*df(x1,t,3)*df(x1,t,2)*df(x1
,t)**2*x1**2*x2**11*a1**11*ka*vm + 2*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**14*a1**11*ka*vm*(a1 + 44*a2 - 42*b2) + 44*df(x1,
t,3)*df(x1,t,2)*df(x1,t)*x1**13*x2*a1**11*ka*vm*( - a1 - 22*a2 + 21*b2) + 44*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**12*x2**2
*a1**11*ka*vm*(8*a1 + 110*a2 - 105*b2) + 220*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**11*x2**3*a1**11*ka*vm*( - 7*a1 - 66*a2 +
 63*b2) + 330*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**10*x2**4*a1**11*ka*vm*(13*a1 + 88*a2 - 84*b2) + 264*df(x1,t,3)*df(x1,t,
2)*df(x1,t)*x1**9*x2**5*a1**11*ka*vm*( - 31*a1 - 154*a2 + 147*b2) + 1848*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**8*x2**6*a1**
11*ka*vm*(6*a1 + 22*a2 - 21*b2) + 264*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**7*x2**7*a1**11*ka*vm*( - 41*a1 - 110*a2 + 105*
b2) + 330*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**6*x2**8*a1**11*ka*vm*(23*a1 + 44*a2 - 42*b2) + 220*df(x1,t,3)*df(x1,t,2)*df
(x1,t)*x1**5*x2**9*a1**11*ka*vm*( - 17*a1 - 22*a2 + 21*b2) + 44*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**4*x2**10*a1**11*ka*vm
*(28*a1 + 22*a2 - 21*b2) + 4*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**3*x2**11*a1**11*ka*vm*( - 61*a1 - 22*a2 + 21*b2) + 22*df
(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**2*x2**12*a1**12*ka*vm + df(x1,t,3)*df(x1,t,2)*x1**15*a1**12*ka*vm*(8*a2 - 7*b2) + df(x1
,t,3)*df(x1,t,2)*x1**14*x2*a1**12*ka*vm*( - a1 - 96*a2 + 84*b2) + 6*df(x1,t,3)*df(x1,t,2)*x1**13*x2**2*a1**12*ka*vm*(2*
a1 + 88*a2 - 77*b2) + 22*df(x1,t,3)*df(x1,t,2)*x1**12*x2**3*a1**12*ka*vm*( - 3*a1 - 80*a2 + 70*b2) + 55*df(x1,t,3)*df(x1
,t,2)*x1**11*x2**4*a1**12*ka*vm*(4*a1 + 72*a2 - 63*b2) + 99*df(x1,t,3)*df(x1,t,2)*x1**10*x2**5*a1**12*ka*vm*( - 5*a1 - 
64*a2 + 56*b2) + 132*df(x1,t,3)*df(x1,t,2)*x1**9*x2**6*a1**12*ka*vm*(6*a1 + 56*a2 - 49*b2) + 132*df(x1,t,3)*df(x1,t,2)*
x1**8*x2**7*a1**12*ka*vm*( - 7*a1 - 48*a2 + 42*b2) + 99*df(x1,t,3)*df(x1,t,2)*x1**7*x2**8*a1**12*ka*vm*(8*a1 + 40*a2 - 
35*b2) + 55*df(x1,t,3)*df(x1,t,2)*x1**6*x2**9*a1**12*ka*vm*( - 9*a1 - 32*a2 + 28*b2) + 22*df(x1,t,3)*df(x1,t,2)*x1**5*x2
**10*a1**12*ka*vm*(10*a1 + 24*a2 - 21*b2) + 6*df(x1,t,3)*df(x1,t,2)*x1**4*x2**11*a1**12*ka*vm*( - 11*a1 - 16*a2 + 14*b2)
 + df(x1,t,3)*df(x1,t,2)*x1**3*x2**12*a1**12*ka*vm*(12*a1 + 8*a2 - 7*b2) - df(x1,t,3)*df(x1,t,2)*x1**2*x2**13*a1**13*ka*
vm + df(x1,t,3)*df(x1,t)**16*x1*(ka - kc) + df(x1,t,3)*df(x1,t)**15*x1**2*(14*a1*ka - 15*a1*kc + b1*ka) + 15*df(x1,t,3)*
df(x1,t)**15*x1*x2*a1*( - ka + kc) - 4*df(x1,t,3)*df(x1,t)**15*x1*ka*vm + df(x1,t,3)*df(x1,t)**14*x1**3*a1*(91*a1*ka - 
105*a1*kc + a2*ka + 14*b1*ka - b2*ka) + df(x1,t,3)*df(x1,t)**14*x1**2*x2*a1*( - 196*a1*ka + 210*a1*kc - a2*ka - 14*b1*ka
 + b2*ka) + df(x1,t,3)*df(x1,t)**14*x1**2*vm*( - 44*a1*ka + 3*b2*ka - b2*kc) + 105*df(x1,t,3)*df(x1,t)**14*x1*x2**2*a1**
2*(ka - kc) + 51*df(x1,t,3)*df(x1,t)**14*x1*x2*a1*ka*vm + 7*df(x1,t,3)*df(x1,t)**13*x1**4*a1**2*(52*a1*ka - 65*a1*kc + 2
*a2*ka + 13*b1*ka - 2*b2*ka) + 7*df(x1,t,3)*df(x1,t)**13*x1**3*x2*a1**2*( - 169*a1*ka + 195*a1*kc - 4*a2*ka - 26*b1*ka +
 4*b2*ka) + df(x1,t,3)*df(x1,t)**13*x1**3*vm*( - 220*a1**2*ka - 6*a1*a2*ka + 32*a1*b2*ka - 14*a1*b2*kc + b1*b2*ka + b2**
2*ka) + 7*df(x1,t,3)*df(x1,t)**13*x1**2*x2**2*a1**2*(182*a1*ka - 195*a1*kc + 2*a2*ka + 13*b1*ka - 2*b2*ka) + 2*df(x1,t,3
)*df(x1,t)**13*x1**2*x2*a1*vm*(258*a1*ka + 4*a2*ka - 19*b2*ka + 7*b2*kc) + 455*df(x1,t,3)*df(x1,t)**13*x1*x2**3*a1**3*( 
- ka + kc) - 299*df(x1,t,3)*df(x1,t)**13*x1*x2**2*a1**2*ka*vm + 91*df(x1,t,3)*df(x1,t)**12*x1**5*a1**3*(11*a1*ka - 15*a1
*kc + a2*ka + 4*b1*ka - b2*ka) + 273*df(x1,t,3)*df(x1,t)**12*x1**4*x2*a1**3*( - 16*a1*ka + 20*a1*kc - a2*ka - 4*b1*ka + 
b2*ka) + df(x1,t,3)*df(x1,t)**12*x1**4*a1*vm*( - 660*a1**2*ka - 64*a1*a2*ka + 150*a1*b2*ka - 91*a1*b2*kc - 2*a2**2*ka + 
7*a2*b2*ka + 13*b1*b2*ka + 13*b2**2*ka) + 273*df(x1,t,3)*df(x1,t)**12*x1**3*x2**2*a1**3*(26*a1*ka - 30*a1*kc + a2*ka + 4
*b1*ka - b2*ka) + df(x1,t,3)*df(x1,t)**12*x1**3*x2*a1*vm*(2354*a1**2*ka + 159*a1*a2*ka - 371*a1*b2*ka + 182*a1*b2*kc + 2
*a2**2*ka - 7*a2*b2*ka - 13*b1*b2*ka - 13*b2**2*ka) + 91*df(x1,t,3)*df(x1,t)**12*x1**2*x2**3*a1**3*( - 56*a1*ka + 60*a1*
kc - a2*ka - 4*b1*ka + b2*ka) + df(x1,t,3)*df(x1,t)**12*x1**2*x2**2*a1**2*vm*( - 2760*a1*ka - 95*a2*ka + 221*b2*ka - 91*
b2*kc) + 1365*df(x1,t,3)*df(x1,t)**12*x1*x2**4*a1**4*(ka - kc) + 1066*df(x1,t,3)*df(x1,t)**12*x1*x2**3*a1**3*ka*vm + 91*
df(x1,t,3)*df(x1,t)**11*x1**6*a1**4*(22*a1*ka - 33*a1*kc + 4*a2*ka + 11*b1*ka - 4*b2*ka) + 91*df(x1,t,3)*df(x1,t)**11*x1
**5*x2*a1**4*( - 121*a1*ka + 165*a1*kc - 16*a2*ka - 44*b1*ka + 16*b2*ka) + 2*df(x1,t,3)*df(x1,t)**11*x1**5*a1**2*vm*( - 
660*a1**2*ka - 154*a1*a2*ka + 198*a1*b2*ka - 182*a1*b2*kc - 14*a2**2*ka + 42*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 546
*df(x1,t,3)*df(x1,t)**11*x1**4*x2**2*a1**4*(44*a1*ka - 55*a1*kc + 4*a2*ka + 11*b1*ka - 4*b2*ka) + 4*df(x1,t,3)*df(x1,t)
**11*x1**4*x2*a1**2*vm*(1595*a1**2*ka + 283*a1*a2*ka - 393*a1*b2*ka + 273*a1*b2*kc + 14*a2**2*ka - 42*a2*b2*ka - 39*b1*
b2*ka - 39*b2**2*ka) + 182*df(x1,t,3)*df(x1,t)**11*x1**3*x2**3*a1**4*( - 143*a1*ka + 165*a1*kc - 8*a2*ka - 22*b1*ka + 8*
b2*ka) + 2*df(x1,t,3)*df(x1,t)**11*x1**3*x2**2*a1**2*vm*( - 5687*a1**2*ka - 670*a1*a2*ka + 978*a1*b2*ka - 546*a1*b2*kc -
 14*a2**2*ka + 42*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 91*df(x1,t,3)*df(x1,t)**11*x1**2*x2**4*a1**4*(154*a1*ka - 165*
a1*kc + 4*a2*ka + 11*b1*ka - 4*b2*ka) + 4*df(x1,t,3)*df(x1,t)**11*x1**2*x2**3*a1**3*vm*(2222*a1*ka + 129*a2*ka - 195*b2*
ka + 91*b2*kc) + 3003*df(x1,t,3)*df(x1,t)**11*x1*x2**5*a1**5*( - ka + kc) - 2574*df(x1,t,3)*df(x1,t)**11*x1*x2**4*a1**4*
ka*vm + 1001*df(x1,t,3)*df(x1,t)**10*x1**7*a1**5*(3*a1*ka - 5*a1*kc + a2*ka + 2*b1*ka - b2*ka) + 5005*df(x1,t,3)*df(x1,t
)**10*x1**6*x2*a1**5*( - 4*a1*ka + 6*a1*kc - a2*ka - 2*b1*ka + b2*ka) + 11*df(x1,t,3)*df(x1,t)**10*x1**6*a1**3*vm*( - 
168*a1**2*ka - 80*a1*a2*ka + 55*a1*b2*ka - 91*a1*b2*kc - 16*a2**2*ka + 42*a2*b2*ka + 26*b1*b2*ka + 26*b2**2*ka) + 5005*
df(x1,t,3)*df(x1,t)**10*x1**5*x2**2*a1**5*(11*a1*ka - 15*a1*kc + 2*a2*ka + 4*b1*ka - 2*b2*ka) + 11*df(x1,t,3)*df(x1,t)**
10*x1**5*x2*a1**3*vm*(1035*a1**2*ka + 394*a1*a2*ka - 334*a1*b2*ka + 364*a1*b2*kc + 48*a2**2*ka - 126*a2*b2*ka - 78*b1*b2
*ka - 78*b2**2*ka) + 10010*df(x1,t,3)*df(x1,t)**10*x1**4*x2**3*a1**5*( - 8*a1*ka + 10*a1*kc - a2*ka - 2*b1*ka + b2*ka) +
 22*df(x1,t,3)*df(x1,t)**10*x1**4*x2**2*a1**3*vm*( - 1250*a1**2*ka - 351*a1*a2*ka + 336*a1*b2*ka - 273*a1*b2*kc - 24*a2
**2*ka + 63*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 5005*df(x1,t,3)*df(x1,t)**10*x1**3*x2**4*a1**5*(13*a1*ka - 15*a1*kc 
+ a2*ka + 2*b1*ka - b2*ka) + 22*df(x1,t,3)*df(x1,t)**10*x1**3*x2**3*a1**3*vm*(1485*a1**2*ka + 271*a1*a2*ka - 281*a1*b2*
ka + 182*a1*b2*kc + 8*a2**2*ka - 21*a2*b2*ka - 13*b1*b2*ka - 13*b2**2*ka) + 1001*df(x1,t,3)*df(x1,t)**10*x1**2*x2**5*a1
**5*( - 28*a1*ka + 30*a1*kc - a2*ka - 2*b1*ka + b2*ka) + 11*df(x1,t,3)*df(x1,t)**10*x1**2*x2**4*a1**4*vm*( - 1740*a1*ka 
- 154*a2*ka + 169*b2*ka - 91*b2*kc) + 5005*df(x1,t,3)*df(x1,t)**10*x1*x2**6*a1**6*(ka - kc) + 4433*df(x1,t,3)*df(x1,t)**
10*x1*x2**5*a1**5*ka*vm + 143*df(x1,t,3)*df(x1,t)**9*x1**8*a1**6*(24*a1*ka - 45*a1*kc + 14*a2*ka + 21*b1*ka - 14*b2*ka) 
+ 3003*df(x1,t,3)*df(x1,t)**9*x1**7*x2*a1**6*( - 9*a1*ka + 15*a1*kc - 4*a2*ka - 6*b1*ka + 4*b2*ka) + 11*df(x1,t,3)*df(x1
,t)**9*x1**7*a1**4*vm*( - 168*a1**2*ka - 150*a1*a2*ka + 36*a1*b2*ka - 182*a1*b2*kc - 60*a2**2*ka + 140*a2*b2*ka + 65*b1*
b2*ka + 65*b2**2*ka) + 15015*df(x1,t,3)*df(x1,t)**9*x1**6*x2**2*a1**6*(6*a1*ka - 9*a1*kc + 2*a2*ka + 3*b1*ka - 2*b2*ka) 
+ 22*df(x1,t,3)*df(x1,t)**9*x1**6*x2*a1**4*vm*(636*a1**2*ka + 470*a1*a2*ka - 215*a1*b2*ka + 455*a1*b2*kc + 120*a2**2*ka 
- 280*a2*b2*ka - 130*b1*b2*ka - 130*b2**2*ka) + 5005*df(x1,t,3)*df(x1,t)**9*x1**5*x2**3*a1**6*( - 33*a1*ka + 45*a1*kc - 
8*a2*ka - 12*b1*ka + 8*b2*ka) + 55*df(x1,t,3)*df(x1,t)**9*x1**5*x2**2*a1**4*vm*( - 783*a1**2*ka - 452*a1*a2*ka + 272*a1*
b2*ka - 364*a1*b2*kc - 72*a2**2*ka + 168*a2*b2*ka + 78*b1*b2*ka + 78*b2**2*ka) + 15015*df(x1,t,3)*df(x1,t)**9*x1**4*x2**
4*a1**6*(12*a1*ka - 15*a1*kc + 2*a2*ka + 3*b1*ka - 2*b2*ka) + 220*df(x1,t,3)*df(x1,t)**9*x1**4*x2**3*a1**4*vm*(315*a1**2
*ka + 132*a1*a2*ka - 93*a1*b2*ka + 91*a1*b2*kc + 12*a2**2*ka - 28*a2*b2*ka - 13*b1*b2*ka - 13*b2**2*ka) + 3003*df(x1,t,3
)*df(x1,t)**9*x1**3*x2**5*a1**6*( - 39*a1*ka + 45*a1*kc - 4*a2*ka - 6*b1*ka + 4*b2*ka) + 55*df(x1,t,3)*df(x1,t)**9*x1**3
*x2**4*a1**4*vm*( - 1122*a1**2*ka - 302*a1*a2*ka + 236*a1*b2*ka - 182*a1*b2*kc - 12*a2**2*ka + 28*a2*b2*ka + 13*b1*b2*ka
 + 13*b2**2*ka) + 1001*df(x1,t,3)*df(x1,t)**9*x1**2*x2**6*a1**6*(42*a1*ka - 45*a1*kc + 2*a2*ka + 3*b1*ka - 2*b2*ka) + 22
*df(x1,t,3)*df(x1,t)**9*x1**2*x2**5*a1**5*vm*(1314*a1*ka + 170*a2*ka - 143*b2*ka + 91*b2*kc) + 6435*df(x1,t,3)*df(x1,t)
**9*x1*x2**7*a1**7*( - ka + kc) - 5577*df(x1,t,3)*df(x1,t)**9*x1*x2**6*a1**6*ka*vm + 429*df(x1,t,3)*df(x1,t)**8*x1**9*a1
**7*(7*a1*ka - 15*a1*kc + 7*a2*ka + 8*b1*ka - 7*b2*ka) + 429*df(x1,t,3)*df(x1,t)**8*x1**8*x2*a1**7*( - 64*a1*ka + 120*a1
*kc - 49*a2*ka - 56*b1*ka + 49*b2*ka) + 33*df(x1,t,3)*df(x1,t)**8*x1**8*a1**5*vm*( - 40*a1**2*ka - 64*a1*a2*ka - 12*a1*
b2*ka - 91*a1*b2*kc - 50*a2**2*ka + 105*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 9009*df(x1,t,3)*df(x1,t)**8*x1**7*x2**2*
a1**7*(12*a1*ka - 20*a1*kc + 7*a2*ka + 8*b1*ka - 7*b2*ka) + 33*df(x1,t,3)*df(x1,t)**8*x1**7*x2*a1**5*vm*(364*a1**2*ka + 
497*a1*a2*ka - 57*a1*b2*ka + 546*a1*b2*kc + 250*a2**2*ka - 525*a2*b2*ka - 195*b1*b2*ka - 195*b2**2*ka) + 15015*df(x1,t,3
)*df(x1,t)**8*x1**6*x2**3*a1**7*( - 16*a1*ka + 24*a1*kc - 7*a2*ka - 8*b1*ka + 7*b2*ka) + 33*df(x1,t,3)*df(x1,t)**8*x1**6
*x2**2*a1**5*vm*( - 1376*a1**2*ka - 1525*a1*a2*ka + 465*a1*b2*ka - 1365*a1*b2*kc - 500*a2**2*ka + 1050*a2*b2*ka + 390*b1
*b2*ka + 390*b2**2*ka) + 15015*df(x1,t,3)*df(x1,t)**8*x1**5*x2**4*a1**7*(22*a1*ka - 30*a1*kc + 7*a2*ka + 8*b1*ka - 7*b2*
ka) + 330*df(x1,t,3)*df(x1,t)**8*x1**5*x2**3*a1**5*vm*(282*a1**2*ka + 241*a1*a2*ka - 105*a1*b2*ka + 182*a1*b2*kc + 50*a2
**2*ka - 105*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) + 9009*df(x1,t,3)*df(x1,t)**8*x1**4*x2**5*a1**7*( - 32*a1*ka + 40*a1*
kc - 7*a2*ka - 8*b1*ka + 7*b2*ka) + 165*df(x1,t,3)*df(x1,t)**8*x1**4*x2**4*a1**5*vm*( - 680*a1**2*ka - 418*a1*a2*ka + 
222*a1*b2*ka - 273*a1*b2*kc - 50*a2**2*ka + 105*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 3003*df(x1,t,3)*df(x1,t)**8*x1**
3*x2**6*a1**7*(52*a1*ka - 60*a1*kc + 7*a2*ka + 8*b1*ka - 7*b2*ka) + 33*df(x1,t,3)*df(x1,t)**8*x1**3*x2**5*a1**5*vm*(2420
*a1**2*ka + 949*a1*a2*ka - 573*a1*b2*ka + 546*a1*b2*kc + 50*a2**2*ka - 105*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) + 429*
df(x1,t,3)*df(x1,t)**8*x1**2*x2**7*a1**7*( - 112*a1*ka + 120*a1*kc - 7*a2*ka - 8*b1*ka + 7*b2*ka) + 33*df(x1,t,3)*df(x1,
t)**8*x1**2*x2**6*a1**6*vm*( - 944*a1*ka - 177*a2*ka + 117*b2*ka - 91*b2*kc) + 6435*df(x1,t,3)*df(x1,t)**8*x1*x2**8*a1**
8*(ka - kc) + 5148*df(x1,t,3)*df(x1,t)**8*x1*x2**7*a1**7*ka*vm + 143*df(x1,t,3)*df(x1,t)**7*x1**10*a1**8*(14*a1*ka - 35*
a1*kc + 24*a2*ka + 21*b1*ka - 24*b2*ka) + 429*df(x1,t,3)*df(x1,t)**7*x1**9*x2*a1**8*( - 49*a1*ka + 105*a1*kc - 64*a2*ka 
- 56*b1*ka + 64*b2*ka) + 132*df(x1,t,3)*df(x1,t)**7*x1**9*a1**6*vm*( - 5*a1**2*ka - 14*a1*a2*ka - 10*a1*b2*ka - 26*a1*b2
*kc - 22*a2**2*ka + 42*a2*b2*ka + 13*b1*b2*ka + 13*b2**2*ka) + 12012*df(x1,t,3)*df(x1,t)**7*x1**8*x2**2*a1**8*(8*a1*ka -
 15*a1*kc + 8*a2*ka + 7*b1*ka - 8*b2*ka) + 264*df(x1,t,3)*df(x1,t)**7*x1**8*x2*a1**6*vm*(27*a1**2*ka + 67*a1*a2*ka + 17*
a1*b2*ka + 91*a1*b2*kc + 66*a2**2*ka - 126*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) + 12012*df(x1,t,3)*df(x1,t)**7*x1**7*x2
**3*a1**8*( - 21*a1*ka + 35*a1*kc - 16*a2*ka - 14*b1*ka + 16*b2*ka) + 132*df(x1,t,3)*df(x1,t)**7*x1**7*x2**2*a1**6*vm*( 
- 245*a1**2*ka - 510*a1*a2*ka + 6*a1*b2*ka - 546*a1*b2*kc - 330*a2**2*ka + 630*a2*b2*ka + 195*b1*b2*ka + 195*b2**2*ka) +
 30030*df(x1,t,3)*df(x1,t)**7*x1**6*x2**4*a1**8*(14*a1*ka - 21*a1*kc + 8*a2*ka + 7*b1*ka - 8*b2*ka) + 264*df(x1,t,3)*df(
x1,t)**7*x1**6*x2**3*a1**6*vm*(308*a1**2*ka + 515*a1*a2*ka - 95*a1*b2*ka + 455*a1*b2*kc + 220*a2**2*ka - 420*a2*b2*ka - 
130*b1*b2*ka - 130*b2**2*ka) + 6006*df(x1,t,3)*df(x1,t)**7*x1**5*x2**5*a1**8*( - 77*a1*ka + 105*a1*kc - 32*a2*ka - 28*b1
*ka + 32*b2*ka) + 660*df(x1,t,3)*df(x1,t)**7*x1**5*x2**4*a1**6*vm*( - 189*a1**2*ka - 242*a1*a2*ka + 74*a1*b2*ka - 182*a1
*b2*kc - 66*a2**2*ka + 126*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 12012*df(x1,t,3)*df(x1,t)**7*x1**4*x2**6*a1**8*(28*a1
*ka - 35*a1*kc + 8*a2*ka + 7*b1*ka - 8*b2*ka) + 264*df(x1,t,3)*df(x1,t)**7*x1**4*x2**5*a1**6*vm*(455*a1**2*ka + 417*a1*
a2*ka - 165*a1*b2*ka + 273*a1*b2*kc + 66*a2**2*ka - 126*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) + 1716*df(x1,t,3)*df(x1,t)
**7*x1**3*x2**7*a1**8*( - 91*a1*ka + 105*a1*kc - 16*a2*ka - 14*b1*ka + 16*b2*ka) + 132*df(x1,t,3)*df(x1,t)**7*x1**3*x2**
6*a1**6*vm*( - 539*a1**2*ka - 314*a1*a2*ka + 146*a1*b2*ka - 182*a1*b2*kc - 22*a2**2*ka + 42*a2*b2*ka + 13*b1*b2*ka + 13*
b2**2*ka) + 429*df(x1,t,3)*df(x1,t)**7*x1**2*x2**8*a1**8*(98*a1*ka - 105*a1*kc + 8*a2*ka + 7*b1*ka - 8*b2*ka) + 264*df(
x1,t,3)*df(x1,t)**7*x1**2*x2**7*a1**7*vm*(90*a1*ka + 25*a2*ka - 13*b2*ka + 13*b2*kc) + 5005*df(x1,t,3)*df(x1,t)**7*x1*x2
**9*a1**9*( - ka + kc) - 3432*df(x1,t,3)*df(x1,t)**7*x1*x2**8*a1**8*ka*vm + 1001*df(x1,t,3)*df(x1,t)**6*x1**11*a1**9*(a1
*ka - 3*a1*kc + 3*a2*ka + 2*b1*ka - 3*b2*ka) + 3003*df(x1,t,3)*df(x1,t)**6*x1**10*x2*a1**9*( - 4*a1*ka + 10*a1*kc - 9*a2
*ka - 6*b1*ka + 9*b2*ka) + 11*df(x1,t,3)*df(x1,t)**6*x1**10*a1**7*vm*( - 20*a1**2*ka - 96*a1*a2*ka - 153*a1*b2*ka - 273*
a1*b2*kc - 336*a2**2*ka + 588*a2*b2*ka + 156*b1*b2*ka + 156*b2**2*ka) + 9009*df(x1,t,3)*df(x1,t)**6*x1**9*x2**2*a1**9*(7
*a1*ka - 15*a1*kc + 12*a2*ka + 8*b1*ka - 12*b2*ka) + 33*df(x1,t,3)*df(x1,t)**6*x1**9*x2*a1**7*vm*(85*a1**2*ka + 388*a1*
a2*ka + 292*a1*b2*ka + 728*a1*b2*kc + 784*a2**2*ka - 1372*a2*b2*ka - 364*b1*b2*ka - 364*b2**2*ka) + 12012*df(x1,t,3)*df(
x1,t)**6*x1**8*x2**3*a1**9*( - 16*a1*ka + 30*a1*kc - 21*a2*ka - 14*b1*ka + 21*b2*ka) + 132*df(x1,t,3)*df(x1,t)**6*x1**8*
x2**2*a1**7*vm*( - 114*a1**2*ka - 455*a1*a2*ka - 154*a1*b2*ka - 637*a1*b2*kc - 588*a2**2*ka + 1029*a2*b2*ka + 273*b1*b2*
ka + 273*b2**2*ka) + 126126*df(x1,t,3)*df(x1,t)**6*x1**7*x2**4*a1**9*(3*a1*ka - 5*a1*kc + 3*a2*ka + 2*b1*ka - 3*b2*ka) +
 924*df(x1,t,3)*df(x1,t)**6*x1**7*x2**3*a1**7*vm*(49*a1**2*ka + 163*a1*a2*ka + 15*a1*b2*ka + 182*a1*b2*kc + 140*a2**2*ka
 - 245*a2*b2*ka - 65*b1*b2*ka - 65*b2**2*ka) + 126126*df(x1,t,3)*df(x1,t)**6*x1**6*x2**5*a1**9*( - 4*a1*ka + 6*a1*kc - 3
*a2*ka - 2*b1*ka + 3*b2*ka) + 462*df(x1,t,3)*df(x1,t)**6*x1**6*x2**4*a1**7*vm*( - 184*a1**2*ka - 490*a1*a2*ka + 35*a1*b2
*ka - 455*a1*b2*kc - 280*a2**2*ka + 490*a2*b2*ka + 130*b1*b2*ka + 130*b2**2*ka) + 42042*df(x1,t,3)*df(x1,t)**6*x1**5*x2
**6*a1**9*(11*a1*ka - 15*a1*kc + 6*a2*ka + 4*b1*ka - 6*b2*ka) + 462*df(x1,t,3)*df(x1,t)**6*x1**5*x2**5*a1**7*vm*(225*a1
**2*ka + 458*a1*a2*ka - 86*a1*b2*ka + 364*a1*b2*kc + 168*a2**2*ka - 294*a2*b2*ka - 78*b1*b2*ka - 78*b2**2*ka) + 36036*df
(x1,t,3)*df(x1,t)**6*x1**4*x2**7*a1**9*( - 8*a1*ka + 10*a1*kc - 3*a2*ka - 2*b1*ka + 3*b2*ka) + 924*df(x1,t,3)*df(x1,t)**
6*x1**4*x2**6*a1**7*vm*( - 90*a1**2*ka - 131*a1*a2*ka + 36*a1*b2*ka - 91*a1*b2*kc - 28*a2**2*ka + 49*a2*b2*ka + 13*b1*b2
*ka + 13*b2**2*ka) + 9009*df(x1,t,3)*df(x1,t)**6*x1**3*x2**8*a1**9*(13*a1*ka - 15*a1*kc + 3*a2*ka + 2*b1*ka - 3*b2*ka) +
 132*df(x1,t,3)*df(x1,t)**6*x1**3*x2**7*a1**7*vm*(319*a1**2*ka + 295*a1*a2*ka - 101*a1*b2*ka + 182*a1*b2*kc + 28*a2**2*
ka - 49*a2*b2*ka - 13*b1*b2*ka - 13*b2**2*ka) + 1001*df(x1,t,3)*df(x1,t)**6*x1**2*x2**9*a1**9*( - 28*a1*ka + 30*a1*kc - 
3*a2*ka - 2*b1*ka + 3*b2*ka) + 33*df(x1,t,3)*df(x1,t)**6*x1**2*x2**8*a1**8*vm*( - 372*a1*ka - 164*a2*ka + 65*b2*ka - 91*
b2*kc) + 3003*df(x1,t,3)*df(x1,t)**6*x1*x2**10*a1**10*(ka - kc) + 1573*df(x1,t,3)*df(x1,t)**6*x1*x2**9*a1**9*ka*vm + 91*
df(x1,t,3)*df(x1,t)**5*x1**12*a1**10*(4*a1*ka - 15*a1*kc + 22*a2*ka + 11*b1*ka - 22*b2*ka) + 5005*df(x1,t,3)*df(x1,t)**5
*x1**11*x2*a1**10*( - a1*ka + 3*a1*kc - 4*a2*ka - 2*b1*ka + 4*b2*ka) + 11*df(x1,t,3)*df(x1,t)**5*x1**11*a1**8*vm*( - 4*
a1**2*ka - 30*a1*a2*ka - 120*a1*b2*ka - 182*a1*b2*kc - 312*a2**2*ka + 504*a2*b2*ka + 117*b1*b2*ka + 117*b2**2*ka) + 
15015*df(x1,t,3)*df(x1,t)**5*x1**10*x2**2*a1**10*(2*a1*ka - 5*a1*kc + 6*a2*ka + 3*b1*ka - 6*b2*ka) + 66*df(x1,t,3)*df(x1
,t)**5*x1**10*x2*a1**8*vm*(10*a1**2*ka + 88*a1*a2*ka + 147*a1*b2*ka + 273*a1*b2*kc + 416*a2**2*ka - 672*a2*b2*ka - 156*
b1*b2*ka - 156*b2**2*ka) + 15015*df(x1,t,3)*df(x1,t)**5*x1**9*x2**3*a1**10*( - 7*a1*ka + 15*a1*kc - 16*a2*ka - 8*b1*ka +
 16*b2*ka) + 33*df(x1,t,3)*df(x1,t)**5*x1**9*x2**2*a1**8*vm*( - 125*a1**2*ka - 1048*a1*a2*ka - 912*a1*b2*ka - 2184*a1*b2
*kc - 2912*a2**2*ka + 4704*a2*b2*ka + 1092*b1*b2*ka + 1092*b2**2*ka) + 30030*df(x1,t,3)*df(x1,t)**5*x1**8*x2**4*a1**10*(
8*a1*ka - 15*a1*kc + 14*a2*ka + 7*b1*ka - 14*b2*ka) + 264*df(x1,t,3)*df(x1,t)**5*x1**8*x2**3*a1**8*vm*(55*a1**2*ka + 406
*a1*a2*ka + 189*a1*b2*ka + 637*a1*b2*kc + 728*a2**2*ka - 1176*a2*b2*ka - 273*b1*b2*ka - 273*b2**2*ka) + 126126*df(x1,t,3
)*df(x1,t)**5*x1**7*x2**5*a1**10*( - 3*a1*ka + 5*a1*kc - 4*a2*ka - 2*b1*ka + 4*b2*ka) + 462*df(x1,t,3)*df(x1,t)**5*x1**7
*x2**4*a1**8*vm*( - 70*a1**2*ka - 434*a1*a2*ka - 96*a1*b2*ka - 546*a1*b2*kc - 520*a2**2*ka + 840*a2*b2*ka + 195*b1*b2*ka
 + 195*b2**2*ka) + 210210*df(x1,t,3)*df(x1,t)**5*x1**6*x2**6*a1**10*(2*a1*ka - 3*a1*kc + 2*a2*ka + b1*ka - 2*b2*ka) + 
924*df(x1,t,3)*df(x1,t)**5*x1**6*x2**5*a1**8*vm*(52*a1**2*ka + 260*a1*a2*ka + 15*a1*b2*ka + 273*a1*b2*kc + 208*a2**2*ka 
- 336*a2*b2*ka - 78*b1*b2*ka - 78*b2**2*ka) + 30030*df(x1,t,3)*df(x1,t)**5*x1**5*x2**7*a1**10*( - 11*a1*ka + 15*a1*kc - 
8*a2*ka - 4*b1*ka + 8*b2*ka) + 462*df(x1,t,3)*df(x1,t)**5*x1**5*x2**6*a1**8*vm*( - 105*a1**2*ka - 404*a1*a2*ka + 24*a1*
b2*ka - 364*a1*b2*kc - 208*a2**2*ka + 336*a2*b2*ka + 78*b1*b2*ka + 78*b2**2*ka) + 45045*df(x1,t,3)*df(x1,t)**5*x1**4*x2
**8*a1**10*(4*a1*ka - 5*a1*kc + 2*a2*ka + b1*ka - 2*b2*ka) + 264*df(x1,t,3)*df(x1,t)**5*x1**4*x2**7*a1**8*vm*(125*a1**2*
ka + 346*a1*a2*ka - 51*a1*b2*ka + 273*a1*b2*kc + 104*a2**2*ka - 168*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) + 5005*df(x1,t
,3)*df(x1,t)**5*x1**3*x2**9*a1**10*( - 13*a1*ka + 15*a1*kc - 4*a2*ka - 2*b1*ka + 4*b2*ka) + 33*df(x1,t,3)*df(x1,t)**5*x1
**3*x2**8*a1**8*vm*( - 440*a1**2*ka - 778*a1*a2*ka + 168*a1*b2*ka - 546*a1*b2*kc - 104*a2**2*ka + 168*a2*b2*ka + 39*b1*
b2*ka + 39*b2**2*ka) + 1001*df(x1,t,3)*df(x1,t)**5*x1**2*x2**10*a1**10*(14*a1*ka - 15*a1*kc + 2*a2*ka + b1*ka - 2*b2*ka)
 + 22*df(x1,t,3)*df(x1,t)**5*x1**2*x2**9*a1**9*vm*(170*a1*ka + 144*a2*ka - 39*b2*ka + 91*b2*kc) + 1365*df(x1,t,3)*df(x1,
t)**5*x1*x2**11*a1**11*( - ka + kc) - 429*df(x1,t,3)*df(x1,t)**5*x1*x2**10*a1**10*ka*vm + 91*df(x1,t,3)*df(x1,t)**4*x1**
13*a1**11*(a1*ka - 5*a1*kc + 11*a2*ka + 4*b1*ka - 11*b2*ka) + 91*df(x1,t,3)*df(x1,t)**4*x1**12*x2*a1**11*( - 16*a1*ka + 
60*a1*kc - 121*a2*ka - 44*b1*ka + 121*b2*ka) + df(x1,t,3)*df(x1,t)**4*x1**12*a1**9*vm*( - 4*a1**2*ka - 682*a1*b2*ka - 
1001*a1*b2*kc - 2310*a2**2*ka + 3465*a2*b2*ka + 715*b1*b2*ka + 715*b2**2*ka) + 5005*df(x1,t,3)*df(x1,t)**4*x1**11*x2**2*
a1**11*(2*a1*ka - 6*a1*kc + 11*a2*ka + 4*b1*ka - 11*b2*ka) + 11*df(x1,t,3)*df(x1,t)**4*x1**11*x2*a1**9*vm*(6*a1**2*ka + 
115*a1*a2*ka + 545*a1*b2*ka + 910*a1*b2*kc + 1890*a2**2*ka - 2835*a2*b2*ka - 585*b1*b2*ka - 585*b2**2*ka) + 5005*df(x1,t
,3)*df(x1,t)**4*x1**10*x2**3*a1**11*( - 8*a1*ka + 20*a1*kc - 33*a2*ka - 12*b1*ka + 33*b2*ka) + 55*df(x1,t,3)*df(x1,t)**4
*x1**10*x2**2*a1**9*vm*( - 8*a1**2*ka - 207*a1*a2*ka - 423*a1*b2*ka - 819*a1*b2*kc - 1512*a2**2*ka + 2268*a2*b2*ka + 468
*b1*b2*ka + 468*b2**2*ka) + 15015*df(x1,t,3)*df(x1,t)**4*x1**9*x2**4*a1**11*(7*a1*ka - 15*a1*kc + 22*a2*ka + 8*b1*ka - 
22*b2*ka) + 330*df(x1,t,3)*df(x1,t)**4*x1**9*x2**3*a1**9*vm*(5*a1**2*ka + 138*a1*a2*ka + 158*a1*b2*ka + 364*a1*b2*kc + 
588*a2**2*ka - 882*a2*b2*ka - 182*b1*b2*ka - 182*b2**2*ka) + 6006*df(x1,t,3)*df(x1,t)**4*x1**8*x2**5*a1**11*( - 32*a1*ka
 + 60*a1*kc - 77*a2*ka - 28*b1*ka + 77*b2*ka) + 330*df(x1,t,3)*df(x1,t)**4*x1**8*x2**4*a1**9*vm*( - 12*a1**2*ka - 322*a1
*a2*ka - 224*a1*b2*ka - 637*a1*b2*kc - 882*a2**2*ka + 1323*a2*b2*ka + 273*b1*b2*ka + 273*b2**2*ka) + 42042*df(x1,t,3)*df
(x1,t)**4*x1**7*x2**6*a1**11*(6*a1*ka - 10*a1*kc + 11*a2*ka + 4*b1*ka - 11*b2*ka) + 462*df(x1,t,3)*df(x1,t)**4*x1**7*x2
**5*a1**9*vm*(14*a1**2*ka + 345*a1*a2*ka + 147*a1*b2*ka + 546*a1*b2*kc + 630*a2**2*ka - 945*a2*b2*ka - 195*b1*b2*ka - 
195*b2**2*ka) + 30030*df(x1,t,3)*df(x1,t)**4*x1**6*x2**7*a1**11*( - 8*a1*ka + 12*a1*kc - 11*a2*ka - 4*b1*ka + 11*b2*ka) 
+ 462*df(x1,t,3)*df(x1,t)**4*x1**6*x2**6*a1**9*vm*( - 16*a1**2*ka - 345*a1*a2*ka - 85*a1*b2*ka - 455*a1*b2*kc - 420*a2**
2*ka + 630*a2*b2*ka + 130*b1*b2*ka + 130*b2**2*ka) + 15015*df(x1,t,3)*df(x1,t)**4*x1**5*x2**8*a1**11*(11*a1*ka - 15*a1*
kc + 11*a2*ka + 4*b1*ka - 11*b2*ka) + 660*df(x1,t,3)*df(x1,t)**4*x1**5*x2**7*a1**9*vm*(9*a1**2*ka + 161*a1*a2*ka + 19*a1
*b2*ka + 182*a1*b2*kc + 126*a2**2*ka - 189*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) + 5005*df(x1,t,3)*df(x1,t)**4*x1**4*x2
**9*a1**11*( - 16*a1*ka + 20*a1*kc - 11*a2*ka - 4*b1*ka + 11*b2*ka) + 165*df(x1,t,3)*df(x1,t)**4*x1**4*x2**8*a1**9*vm*( 
- 20*a1**2*ka - 276*a1*a2*ka - 6*a1*b2*ka - 273*a1*b2*kc - 126*a2**2*ka + 189*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 
1001*df(x1,t,3)*df(x1,t)**4*x1**3*x2**10*a1**11*(26*a1*ka - 30*a1*kc + 11*a2*ka + 4*b1*ka - 11*b2*ka) + 55*df(x1,t,3)*df
(x1,t)**4*x1**3*x2**9*a1**9*vm*(22*a1**2*ka + 207*a1*a2*ka - 11*a1*b2*ka + 182*a1*b2*kc + 42*a2**2*ka - 63*a2*b2*ka - 13
*b1*b2*ka - 13*b2**2*ka) + 91*df(x1,t,3)*df(x1,t)**4*x1**2*x2**11*a1**11*( - 56*a1*ka + 60*a1*kc - 11*a2*ka - 4*b1*ka + 
11*b2*ka) + 11*df(x1,t,3)*df(x1,t)**4*x1**2*x2**10*a1**10*vm*( - 24*a1*ka - 115*a2*ka + 13*b2*ka - 91*b2*kc) + 455*df(x1
,t,3)*df(x1,t)**4*x1*x2**12*a1**12*(ka - kc) + 26*df(x1,t,3)*df(x1,t)**4*x1*x2**11*a1**11*ka*vm + 7*df(x1,t,3)*df(x1,t)
**3*x1**14*a1**12*(2*a1*ka - 15*a1*kc + 52*a2*ka + 13*b1*ka - 52*b2*ka) + 273*df(x1,t,3)*df(x1,t)**3*x1**13*x2*a1**12*( 
- a1*ka + 5*a1*kc - 16*a2*ka - 4*b1*ka + 16*b2*ka) + 2*df(x1,t,3)*df(x1,t)**3*x1**13*a1**10*vm*(22*a1*a2*ka - 114*a1*b2*
ka - 182*a1*b2*kc - 550*a2**2*ka + 770*a2*b2*ka + 143*b1*b2*ka + 143*b2**2*ka) + 546*df(x1,t,3)*df(x1,t)**3*x1**12*x2**2
*a1**12*(4*a1*ka - 15*a1*kc + 44*a2*ka + 11*b1*ka - 44*b2*ka) + 4*df(x1,t,3)*df(x1,t)**3*x1**12*x2*a1**10*vm*( - a1**2*
ka - 33*a1*a2*ka + 583*a1*b2*ka + 1001*a1*b2*kc + 2750*a2**2*ka - 3850*a2*b2*ka - 715*b1*b2*ka - 715*b2**2*ka) + 10010*
df(x1,t,3)*df(x1,t)**3*x1**11*x2**3*a1**12*( - a1*ka + 3*a1*kc - 8*a2*ka - 2*b1*ka + 8*b2*ka) + 22*df(x1,t,3)*df(x1,t)**
3*x1**11*x2**2*a1**10*vm*(3*a1**2*ka - 50*a1*a2*ka - 490*a1*b2*ka - 910*a1*b2*kc - 2250*a2**2*ka + 3150*a2*b2*ka + 585*
b1*b2*ka + 585*b2**2*ka) + 15015*df(x1,t,3)*df(x1,t)**3*x1**10*x2**4*a1**12*(2*a1*ka - 5*a1*kc + 12*a2*ka + 3*b1*ka - 12
*b2*ka) + 220*df(x1,t,3)*df(x1,t)**3*x1**10*x2**3*a1**10*vm*( - 2*a1**2*ka + 39*a1*a2*ka + 135*a1*b2*ka + 273*a1*b2*kc +
 600*a2**2*ka - 840*a2*b2*ka - 156*b1*b2*ka - 156*b2**2*ka) + 9009*df(x1,t,3)*df(x1,t)**3*x1**9*x2**5*a1**12*( - 7*a1*ka
 + 15*a1*kc - 32*a2*ka - 8*b1*ka + 32*b2*ka) + 330*df(x1,t,3)*df(x1,t)**3*x1**9*x2**4*a1**10*vm*(5*a1**2*ka - 84*a1*a2*
ka - 164*a1*b2*ka - 364*a1*b2*kc - 700*a2**2*ka + 980*a2*b2*ka + 182*b1*b2*ka + 182*b2**2*ka) + 12012*df(x1,t,3)*df(x1,t
)**3*x1**8*x2**6*a1**12*(8*a1*ka - 15*a1*kc + 28*a2*ka + 7*b1*ka - 28*b2*ka) + 264*df(x1,t,3)*df(x1,t)**3*x1**8*x2**5*a1
**10*vm*( - 15*a1**2*ka + 203*a1*a2*ka + 259*a1*b2*ka + 637*a1*b2*kc + 1050*a2**2*ka - 1470*a2*b2*ka - 273*b1*b2*ka - 
273*b2**2*ka) + 36036*df(x1,t,3)*df(x1,t)**3*x1**7*x2**7*a1**12*( - 3*a1*ka + 5*a1*kc - 8*a2*ka - 2*b1*ka + 8*b2*ka) + 
924*df(x1,t,3)*df(x1,t)**3*x1**7*x2**6*a1**10*vm*(7*a1**2*ka - 74*a1*a2*ka - 66*a1*b2*ka - 182*a1*b2*kc - 250*a2**2*ka +
 350*a2*b2*ka + 65*b1*b2*ka + 65*b2**2*ka) + 45045*df(x1,t,3)*df(x1,t)**3*x1**6*x2**8*a1**12*(2*a1*ka - 3*a1*kc + 4*a2*
ka + b1*ka - 4*b2*ka) + 264*df(x1,t,3)*df(x1,t)**3*x1**6*x2**7*a1**10*vm*( - 28*a1**2*ka + 225*a1*a2*ka + 145*a1*b2*ka +
 455*a1*b2*kc + 500*a2**2*ka - 700*a2*b2*ka - 130*b1*b2*ka - 130*b2**2*ka) + 5005*df(x1,t,3)*df(x1,t)**3*x1**5*x2**9*a1
**12*( - 11*a1*ka + 15*a1*kc - 16*a2*ka - 4*b1*ka + 16*b2*ka) + 330*df(x1,t,3)*df(x1,t)**3*x1**5*x2**8*a1**10*vm*(18*a1
**2*ka - 106*a1*a2*ka - 50*a1*b2*ka - 182*a1*b2*kc - 150*a2**2*ka + 210*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 6006*df(
x1,t,3)*df(x1,t)**3*x1**4*x2**10*a1**12*(4*a1*ka - 5*a1*kc + 4*a2*ka + b1*ka - 4*b2*ka) + 220*df(x1,t,3)*df(x1,t)**3*x1
**4*x2**9*a1**10*vm*( - 15*a1**2*ka + 61*a1*a2*ka + 21*a1*b2*ka + 91*a1*b2*kc + 50*a2**2*ka - 70*a2*b2*ka - 13*b1*b2*ka 
- 13*b2**2*ka) + 546*df(x1,t,3)*df(x1,t)**3*x1**3*x2**11*a1**12*( - 13*a1*ka + 15*a1*kc - 8*a2*ka - 2*b1*ka + 8*b2*ka) +
 22*df(x1,t,3)*df(x1,t)**3*x1**3*x2**10*a1**10*vm*(55*a1**2*ka - 138*a1*a2*ka - 34*a1*b2*ka - 182*a1*b2*kc - 50*a2**2*ka
 + 70*a2*b2*ka + 13*b1*b2*ka + 13*b2**2*ka) + 91*df(x1,t,3)*df(x1,t)**3*x1**2*x2**12*a1**12*(14*a1*ka - 15*a1*kc + 4*a2*
ka + b1*ka - 4*b2*ka) + 4*df(x1,t,3)*df(x1,t)**3*x1**2*x2**11*a1**11*vm*( - 66*a1*ka + 77*a2*ka + 13*b2*ka + 91*b2*kc) +
 105*df(x1,t,3)*df(x1,t)**3*x1*x2**13*a1**13*( - ka + kc) + 26*df(x1,t,3)*df(x1,t)**3*x1*x2**12*a1**12*ka*vm + df(x1,t,3
)*df(x1,t)**2*x1**15*a1**13*(a1*ka - 15*a1*kc + 91*a2*ka + 14*b1*ka - 91*b2*ka) + 7*df(x1,t,3)*df(x1,t)**2*x1**14*x2*a1
**13*( - 4*a1*ka + 30*a1*kc - 169*a2*ka - 26*b1*ka + 169*b2*ka) + df(x1,t,3)*df(x1,t)**2*x1**14*a1**11*vm*(16*a1*a2*ka -
 45*a1*b2*ka - 91*a1*b2*kc - 352*a2**2*ka + 462*a2*b2*ka + 78*b1*b2*ka + 78*b2**2*ka) + 273*df(x1,t,3)*df(x1,t)**2*x1**
13*x2**2*a1**13*(a1*ka - 5*a1*kc + 26*a2*ka + 4*b1*ka - 26*b2*ka) + df(x1,t,3)*df(x1,t)**2*x1**13*x2*a1**11*vm*( - a1**2
*ka - 146*a1*a2*ka + 534*a1*b2*ka + 1092*a1*b2*kc + 3872*a2**2*ka - 5082*a2*b2*ka - 858*b1*b2*ka - 858*b2**2*ka) + 182*
df(x1,t,3)*df(x1,t)**2*x1**12*x2**3*a1**13*( - 8*a1*ka + 30*a1*kc - 143*a2*ka - 22*b1*ka + 143*b2*ka) + 2*df(x1,t,3)*df(
x1,t)**2*x1**12*x2**2*a1**11*vm*(10*a1**2*ka + 275*a1*a2*ka - 1452*a1*b2*ka - 3003*a1*b2*kc - 9680*a2**2*ka + 12705*a2*
b2*ka + 2145*b1*b2*ka + 2145*b2**2*ka) + 5005*df(x1,t,3)*df(x1,t)**2*x1**11*x2**4*a1**13*(a1*ka - 3*a1*kc + 13*a2*ka + 2
*b1*ka - 13*b2*ka) + 22*df(x1,t,3)*df(x1,t)**2*x1**11*x2**3*a1**11*vm*( - 7*a1**2*ka - 45*a1*a2*ka + 435*a1*b2*ka + 910*
a1*b2*kc + 2640*a2**2*ka - 3465*a2*b2*ka - 585*b1*b2*ka - 585*b2**2*ka) + 3003*df(x1,t,3)*df(x1,t)**2*x1**10*x2**5*a1**
13*( - 4*a1*ka + 10*a1*kc - 39*a2*ka - 6*b1*ka + 39*b2*ka) + 165*df(x1,t,3)*df(x1,t)**2*x1**10*x2**4*a1**11*vm*(4*a1**2*
ka + 2*a1*a2*ka - 129*a1*b2*ka - 273*a1*b2*kc - 704*a2**2*ka + 924*a2*b2*ka + 156*b1*b2*ka + 156*b2**2*ka) + 3003*df(x1,
t,3)*df(x1,t)**2*x1**9*x2**6*a1**13*(7*a1*ka - 15*a1*kc + 52*a2*ka + 8*b1*ka - 52*b2*ka) + 33*df(x1,t,3)*df(x1,t)**2*x1
**9*x2**5*a1**11*vm*( - 55*a1**2*ka + 76*a1*a2*ka + 1020*a1*b2*ka + 2184*a1*b2*kc + 4928*a2**2*ka - 6468*a2*b2*ka - 1092
*b1*b2*ka - 1092*b2**2*ka) + 1716*df(x1,t,3)*df(x1,t)**2*x1**8*x2**7*a1**13*( - 16*a1*ka + 30*a1*kc - 91*a2*ka - 14*b1*
ka + 91*b2*ka) + 132*df(x1,t,3)*df(x1,t)**2*x1**8*x2**6*a1**11*vm*(26*a1**2*ka - 49*a1*a2*ka - 294*a1*b2*ka - 637*a1*b2*
kc - 1232*a2**2*ka + 1617*a2*b2*ka + 273*b1*b2*ka + 273*b2**2*ka) + 9009*df(x1,t,3)*df(x1,t)**2*x1**7*x2**8*a1**13*(3*a1
*ka - 5*a1*kc + 13*a2*ka + 2*b1*ka - 13*b2*ka) + 132*df(x1,t,3)*df(x1,t)**2*x1**7*x2**7*a1**11*vm*( - 35*a1**2*ka + 65*
a1*a2*ka + 249*a1*b2*ka + 546*a1*b2*kc + 880*a2**2*ka - 1155*a2*b2*ka - 195*b1*b2*ka - 195*b2**2*ka) + 5005*df(x1,t,3)*
df(x1,t)**2*x1**6*x2**9*a1**13*( - 4*a1*ka + 6*a1*kc - 13*a2*ka - 2*b1*ka + 13*b2*ka) + 33*df(x1,t,3)*df(x1,t)**2*x1**6*
x2**8*a1**11*vm*(136*a1**2*ka - 220*a1*a2*ka - 615*a1*b2*ka - 1365*a1*b2*kc - 1760*a2**2*ka + 2310*a2*b2*ka + 390*b1*b2*
ka + 390*b2**2*ka) + 1001*df(x1,t,3)*df(x1,t)**2*x1**5*x2**10*a1**13*(11*a1*ka - 15*a1*kc + 26*a2*ka + 4*b1*ka - 26*b2*
ka) + 55*df(x1,t,3)*df(x1,t)**2*x1**5*x2**9*a1**11*vm*( - 57*a1**2*ka + 74*a1*a2*ka + 162*a1*b2*ka + 364*a1*b2*kc + 352*
a2**2*ka - 462*a2*b2*ka - 78*b1*b2*ka - 78*b2**2*ka) + 546*df(x1,t,3)*df(x1,t)**2*x1**4*x2**11*a1**13*( - 8*a1*ka + 10*
a1*kc - 13*a2*ka - 2*b1*ka + 13*b2*ka) + 22*df(x1,t,3)*df(x1,t)**2*x1**4*x2**10*a1**11*vm*(70*a1**2*ka - 67*a1*a2*ka - 
120*a1*b2*ka - 273*a1*b2*kc - 176*a2**2*ka + 231*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 91*df(x1,t,3)*df(x1,t)**2*x1**3
*x2**12*a1**13*(13*a1*ka - 15*a1*kc + 13*a2*ka + 2*b1*ka - 13*b2*ka) + 2*df(x1,t,3)*df(x1,t)**2*x1**3*x2**11*a1**11*vm*(
 - 253*a1**2*ka + 157*a1*a2*ka + 237*a1*b2*ka + 546*a1*b2*kc + 176*a2**2*ka - 231*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) 
+ 7*df(x1,t,3)*df(x1,t)**2*x1**2*x2**13*a1**13*( - 28*a1*ka + 30*a1*kc - 13*a2*ka - 2*b1*ka + 13*b2*ka) + df(x1,t,3)*df(
x1,t)**2*x1**2*x2**12*a1**12*vm*(100*a1*ka - 30*a2*ka - 39*b2*ka - 91*b2*kc) + 15*df(x1,t,3)*df(x1,t)**2*x1*x2**14*a1**
14*(ka - kc) - 9*df(x1,t,3)*df(x1,t)**2*x1*x2**13*a1**13*ka*vm + df(x1,t,3)*df(x1,t)*x1**16*a1**14*( - a1*kc + 14*a2*ka 
+ b1*ka - 14*b2*ka) + df(x1,t,3)*df(x1,t)*x1**15*x2*a1**14*( - a1*ka + 15*a1*kc - 196*a2*ka - 14*b1*ka + 196*b2*ka) + df
(x1,t,3)*df(x1,t)*x1**15*a1**12*vm*(2*a1*a2*ka - 4*a1*b2*ka - 14*a1*b2*kc - 68*a2**2*ka + 84*a2*b2*ka + 13*b1*b2*ka + 13
*b2**2*ka) + 7*df(x1,t,3)*df(x1,t)*x1**14*x2**2*a1**14*(2*a1*ka - 15*a1*kc + 182*a2*ka + 13*b1*ka - 182*b2*ka) + 2*df(x1
,t,3)*df(x1,t)*x1**14*x2*a1**12*vm*( - 14*a1*a2*ka + 29*a1*b2*ka + 91*a1*b2*kc + 408*a2**2*ka - 504*a2*b2*ka - 78*b1*b2*
ka - 78*b2**2*ka) + 91*df(x1,t,3)*df(x1,t)*x1**13*x2**3*a1**14*( - a1*ka + 5*a1*kc - 56*a2*ka - 4*b1*ka + 56*b2*ka) + df
(x1,t,3)*df(x1,t)*x1**13*x2**2*a1**12*vm*(a1**2*ka + 180*a1*a2*ka - 384*a1*b2*ka - 1092*a1*b2*kc - 4488*a2**2*ka + 5544*
a2*b2*ka + 858*b1*b2*ka + 858*b2**2*ka) + 91*df(x1,t,3)*df(x1,t)*x1**12*x2**4*a1**14*(4*a1*ka - 15*a1*kc + 154*a2*ka + 
11*b1*ka - 154*b2*ka) + 4*df(x1,t,3)*df(x1,t)*x1**12*x2**3*a1**12*vm*( - 3*a1**2*ka - 176*a1*a2*ka + 385*a1*b2*ka + 1001
*a1*b2*kc + 3740*a2**2*ka - 4620*a2*b2*ka - 715*b1*b2*ka - 715*b2**2*ka) + 1001*df(x1,t,3)*df(x1,t)*x1**11*x2**5*a1**14*
( - a1*ka + 3*a1*kc - 28*a2*ka - 2*b1*ka + 28*b2*ka) + 11*df(x1,t,3)*df(x1,t)*x1**11*x2**4*a1**12*vm*(6*a1**2*ka + 170*
a1*a2*ka - 380*a1*b2*ka - 910*a1*b2*kc - 3060*a2**2*ka + 3780*a2*b2*ka + 585*b1*b2*ka + 585*b2**2*ka) + 1001*df(x1,t,3)*
df(x1,t)*x1**10*x2**6*a1**14*(2*a1*ka - 5*a1*kc + 42*a2*ka + 3*b1*ka - 42*b2*ka) + 22*df(x1,t,3)*df(x1,t)*x1**10*x2**5*
a1**12*vm*( - 10*a1**2*ka - 162*a1*a2*ka + 369*a1*b2*ka + 819*a1*b2*kc + 2448*a2**2*ka - 3024*a2*b2*ka - 468*b1*b2*ka - 
468*b2**2*ka) + 429*df(x1,t,3)*df(x1,t)*x1**9*x2**7*a1**14*( - 7*a1*ka + 15*a1*kc - 112*a2*ka - 8*b1*ka + 112*b2*ka) + 
33*df(x1,t,3)*df(x1,t)*x1**9*x2**6*a1**12*vm*(15*a1**2*ka + 152*a1*a2*ka - 352*a1*b2*ka - 728*a1*b2*kc - 1904*a2**2*ka +
 2352*a2*b2*ka + 364*b1*b2*ka + 364*b2**2*ka) + 429*df(x1,t,3)*df(x1,t)*x1**8*x2**8*a1**14*(8*a1*ka - 15*a1*kc + 98*a2*
ka + 7*b1*ka - 98*b2*ka) + 264*df(x1,t,3)*df(x1,t)*x1**8*x2**7*a1**12*vm*( - 3*a1**2*ka - 20*a1*a2*ka + 47*a1*b2*ka + 91
*a1*b2*kc + 204*a2**2*ka - 252*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) + 1001*df(x1,t,3)*df(x1,t)*x1**7*x2**9*a1**14*( - 3
*a1*ka + 5*a1*kc - 28*a2*ka - 2*b1*ka + 28*b2*ka) + 33*df(x1,t,3)*df(x1,t)*x1**7*x2**8*a1**12*vm*(28*a1**2*ka + 126*a1*
a2*ka - 300*a1*b2*ka - 546*a1*b2*kc - 1020*a2**2*ka + 1260*a2*b2*ka + 195*b1*b2*ka + 195*b2**2*ka) + 1001*df(x1,t,3)*df(
x1,t)*x1**6*x2**10*a1**14*(2*a1*ka - 3*a1*kc + 14*a2*ka + b1*ka - 14*b2*ka) + 22*df(x1,t,3)*df(x1,t)*x1**6*x2**9*a1**12*
vm*( - 36*a1**2*ka - 110*a1*a2*ka + 265*a1*b2*ka + 455*a1*b2*kc + 680*a2**2*ka - 840*a2*b2*ka - 130*b1*b2*ka - 130*b2**2
*ka) + 91*df(x1,t,3)*df(x1,t)*x1**5*x2**11*a1**14*( - 11*a1*ka + 15*a1*kc - 56*a2*ka - 4*b1*ka + 56*b2*ka) + 11*df(x1,t,
3)*df(x1,t)*x1**5*x2**10*a1**12*vm*(45*a1**2*ka + 92*a1*a2*ka - 224*a1*b2*ka - 364*a1*b2*kc - 408*a2**2*ka + 504*a2*b2*
ka + 78*b1*b2*ka + 78*b2**2*ka) + 91*df(x1,t,3)*df(x1,t)*x1**4*x2**12*a1**14*(4*a1*ka - 5*a1*kc + 14*a2*ka + b1*ka - 14*
b2*ka) + 4*df(x1,t,3)*df(x1,t)*x1**4*x2**11*a1**12*vm*( - 55*a1**2*ka - 72*a1*a2*ka + 177*a1*b2*ka + 273*a1*b2*kc + 204*
a2**2*ka - 252*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) + 7*df(x1,t,3)*df(x1,t)*x1**3*x2**13*a1**14*( - 13*a1*ka + 15*a1*kc
 - 28*a2*ka - 2*b1*ka + 28*b2*ka) + df(x1,t,3)*df(x1,t)*x1**3*x2**12*a1**12*vm*(66*a1**2*ka + 50*a1*a2*ka - 124*a1*b2*ka
 - 182*a1*b2*kc - 68*a2**2*ka + 84*a2*b2*ka + 13*b1*b2*ka + 13*b2**2*ka) + df(x1,t,3)*df(x1,t)*x1**2*x2**14*a1**14*(14*
a1*ka - 15*a1*kc + 14*a2*ka + b1*ka - 14*b2*ka) + 2*df(x1,t,3)*df(x1,t)*x1**2*x2**13*a1**13*vm*( - 6*a1*ka - 2*a2*ka + 5
*b2*ka + 7*b2*kc) + df(x1,t,3)*df(x1,t)*x1*x2**15*a1**15*( - ka + kc) + df(x1,t,3)*df(x1,t)*x1*x2**14*a1**14*ka*vm + df(
x1,t,3)*x1**17*a1**15*ka*(a2 - b2) + 15*df(x1,t,3)*x1**16*x2*a1**15*ka*( - a2 + b2) + df(x1,t,3)*x1**16*a1**13*vm*( - a1
*b2*kc - 6*a2**2*ka + 7*a2*b2*ka + b1*b2*ka + b2**2*ka) + 105*df(x1,t,3)*x1**15*x2**2*a1**15*ka*(a2 - b2) + df(x1,t,3)*
x1**15*x2*a1**13*vm*( - a1*a2*ka + a1*b2*ka + 14*a1*b2*kc + 78*a2**2*ka - 91*a2*b2*ka - 13*b1*b2*ka - 13*b2**2*ka) + 455
*df(x1,t,3)*x1**14*x2**3*a1**15*ka*( - a2 + b2) + 13*df(x1,t,3)*x1**14*x2**2*a1**13*vm*(a1*a2*ka - a1*b2*ka - 7*a1*b2*kc
 - 36*a2**2*ka + 42*a2*b2*ka + 6*b1*b2*ka + 6*b2**2*ka) + 1365*df(x1,t,3)*x1**13*x2**4*a1**15*ka*(a2 - b2) + 26*df(x1,t,
3)*x1**13*x2**3*a1**13*vm*( - 3*a1*a2*ka + 3*a1*b2*ka + 14*a1*b2*kc + 66*a2**2*ka - 77*a2*b2*ka - 11*b1*b2*ka - 11*b2**2
*ka) + 3003*df(x1,t,3)*x1**12*x2**5*a1**15*ka*( - a2 + b2) + 143*df(x1,t,3)*x1**12*x2**4*a1**13*vm*(2*a1*a2*ka - 2*a1*b2
*ka - 7*a1*b2*kc - 30*a2**2*ka + 35*a2*b2*ka + 5*b1*b2*ka + 5*b2**2*ka) + 5005*df(x1,t,3)*x1**11*x2**6*a1**15*ka*(a2 - 
b2) + 143*df(x1,t,3)*x1**11*x2**5*a1**13*vm*( - 5*a1*a2*ka + 5*a1*b2*ka + 14*a1*b2*kc + 54*a2**2*ka - 63*a2*b2*ka - 9*b1
*b2*ka - 9*b2**2*ka) + 6435*df(x1,t,3)*x1**10*x2**7*a1**15*ka*( - a2 + b2) + 429*df(x1,t,3)*x1**10*x2**6*a1**13*vm*(3*a1
*a2*ka - 3*a1*b2*ka - 7*a1*b2*kc - 24*a2**2*ka + 28*a2*b2*ka + 4*b1*b2*ka + 4*b2**2*ka) + 6435*df(x1,t,3)*x1**9*x2**8*a1
**15*ka*(a2 - b2) + 1716*df(x1,t,3)*x1**9*x2**7*a1**13*vm*( - a1*a2*ka + a1*b2*ka + 2*a1*b2*kc + 6*a2**2*ka - 7*a2*b2*ka
 - b1*b2*ka - b2**2*ka) + 5005*df(x1,t,3)*x1**8*x2**9*a1**15*ka*( - a2 + b2) + 429*df(x1,t,3)*x1**8*x2**8*a1**13*vm*(4*
a1*a2*ka - 4*a1*b2*ka - 7*a1*b2*kc - 18*a2**2*ka + 21*a2*b2*ka + 3*b1*b2*ka + 3*b2**2*ka) + 3003*df(x1,t,3)*x1**7*x2**10
*a1**15*ka*(a2 - b2) + 143*df(x1,t,3)*x1**7*x2**9*a1**13*vm*( - 9*a1*a2*ka + 9*a1*b2*ka + 14*a1*b2*kc + 30*a2**2*ka - 35
*a2*b2*ka - 5*b1*b2*ka - 5*b2**2*ka) + 1365*df(x1,t,3)*x1**6*x2**11*a1**15*ka*( - a2 + b2) + 143*df(x1,t,3)*x1**6*x2**10
*a1**13*vm*(5*a1*a2*ka - 5*a1*b2*ka - 7*a1*b2*kc - 12*a2**2*ka + 14*a2*b2*ka + 2*b1*b2*ka + 2*b2**2*ka) + 455*df(x1,t,3)
*x1**5*x2**12*a1**15*ka*(a2 - b2) + 26*df(x1,t,3)*x1**5*x2**11*a1**13*vm*( - 11*a1*a2*ka + 11*a1*b2*ka + 14*a1*b2*kc + 
18*a2**2*ka - 21*a2*b2*ka - 3*b1*b2*ka - 3*b2**2*ka) + 105*df(x1,t,3)*x1**4*x2**13*a1**15*ka*( - a2 + b2) + 13*df(x1,t,3
)*x1**4*x2**12*a1**13*vm*(6*a1*a2*ka - 6*a1*b2*ka - 7*a1*b2*kc - 6*a2**2*ka + 7*a2*b2*ka + b1*b2*ka + b2**2*ka) + 15*df(
x1,t,3)*x1**3*x2**14*a1**15*ka*(a2 - b2) + df(x1,t,3)*x1**3*x2**13*a1**13*vm*( - 13*a1*a2*ka + 13*a1*b2*ka + 14*a1*b2*kc
 + 6*a2**2*ka - 7*a2*b2*ka - b1*b2*ka - b2**2*ka) + df(x1,t,3)*x1**2*x2**15*a1**15*ka*( - a2 + b2) + df(x1,t,3)*x1**2*x2
**14*a1**14*vm*(a2*ka - b2*ka - b2*kc) + 6*df(x1,t,2)**4*df(x1,t)**10*x1**3*ka*vm + 60*df(x1,t,2)**4*df(x1,t)**9*x1**4*
a1*ka*vm - 60*df(x1,t,2)**4*df(x1,t)**9*x1**3*x2*a1*ka*vm + 270*df(x1,t,2)**4*df(x1,t)**8*x1**5*a1**2*ka*vm - 540*df(x1,
t,2)**4*df(x1,t)**8*x1**4*x2*a1**2*ka*vm + 270*df(x1,t,2)**4*df(x1,t)**8*x1**3*x2**2*a1**2*ka*vm + 720*df(x1,t,2)**4*df(
x1,t)**7*x1**6*a1**3*ka*vm - 2160*df(x1,t,2)**4*df(x1,t)**7*x1**5*x2*a1**3*ka*vm + 2160*df(x1,t,2)**4*df(x1,t)**7*x1**4*
x2**2*a1**3*ka*vm - 720*df(x1,t,2)**4*df(x1,t)**7*x1**3*x2**3*a1**3*ka*vm + 1260*df(x1,t,2)**4*df(x1,t)**6*x1**7*a1**4*
ka*vm - 5040*df(x1,t,2)**4*df(x1,t)**6*x1**6*x2*a1**4*ka*vm + 7560*df(x1,t,2)**4*df(x1,t)**6*x1**5*x2**2*a1**4*ka*vm - 
5040*df(x1,t,2)**4*df(x1,t)**6*x1**4*x2**3*a1**4*ka*vm + 1260*df(x1,t,2)**4*df(x1,t)**6*x1**3*x2**4*a1**4*ka*vm + 1512*
df(x1,t,2)**4*df(x1,t)**5*x1**8*a1**5*ka*vm - 7560*df(x1,t,2)**4*df(x1,t)**5*x1**7*x2*a1**5*ka*vm + 15120*df(x1,t,2)**4*
df(x1,t)**5*x1**6*x2**2*a1**5*ka*vm - 15120*df(x1,t,2)**4*df(x1,t)**5*x1**5*x2**3*a1**5*ka*vm + 7560*df(x1,t,2)**4*df(x1
,t)**5*x1**4*x2**4*a1**5*ka*vm - 1512*df(x1,t,2)**4*df(x1,t)**5*x1**3*x2**5*a1**5*ka*vm + 1260*df(x1,t,2)**4*df(x1,t)**4
*x1**9*a1**6*ka*vm - 7560*df(x1,t,2)**4*df(x1,t)**4*x1**8*x2*a1**6*ka*vm + 18900*df(x1,t,2)**4*df(x1,t)**4*x1**7*x2**2*
a1**6*ka*vm - 25200*df(x1,t,2)**4*df(x1,t)**4*x1**6*x2**3*a1**6*ka*vm + 18900*df(x1,t,2)**4*df(x1,t)**4*x1**5*x2**4*a1**
6*ka*vm - 7560*df(x1,t,2)**4*df(x1,t)**4*x1**4*x2**5*a1**6*ka*vm + 1260*df(x1,t,2)**4*df(x1,t)**4*x1**3*x2**6*a1**6*ka*
vm + 720*df(x1,t,2)**4*df(x1,t)**3*x1**10*a1**7*ka*vm - 5040*df(x1,t,2)**4*df(x1,t)**3*x1**9*x2*a1**7*ka*vm + 15120*df(
x1,t,2)**4*df(x1,t)**3*x1**8*x2**2*a1**7*ka*vm - 25200*df(x1,t,2)**4*df(x1,t)**3*x1**7*x2**3*a1**7*ka*vm + 25200*df(x1,t
,2)**4*df(x1,t)**3*x1**6*x2**4*a1**7*ka*vm - 15120*df(x1,t,2)**4*df(x1,t)**3*x1**5*x2**5*a1**7*ka*vm + 5040*df(x1,t,2)**
4*df(x1,t)**3*x1**4*x2**6*a1**7*ka*vm - 720*df(x1,t,2)**4*df(x1,t)**3*x1**3*x2**7*a1**7*ka*vm + 270*df(x1,t,2)**4*df(x1,
t)**2*x1**11*a1**8*ka*vm - 2160*df(x1,t,2)**4*df(x1,t)**2*x1**10*x2*a1**8*ka*vm + 7560*df(x1,t,2)**4*df(x1,t)**2*x1**9*
x2**2*a1**8*ka*vm - 15120*df(x1,t,2)**4*df(x1,t)**2*x1**8*x2**3*a1**8*ka*vm + 18900*df(x1,t,2)**4*df(x1,t)**2*x1**7*x2**
4*a1**8*ka*vm - 15120*df(x1,t,2)**4*df(x1,t)**2*x1**6*x2**5*a1**8*ka*vm + 7560*df(x1,t,2)**4*df(x1,t)**2*x1**5*x2**6*a1
**8*ka*vm - 2160*df(x1,t,2)**4*df(x1,t)**2*x1**4*x2**7*a1**8*ka*vm + 270*df(x1,t,2)**4*df(x1,t)**2*x1**3*x2**8*a1**8*ka*
vm + 60*df(x1,t,2)**4*df(x1,t)*x1**12*a1**9*ka*vm - 540*df(x1,t,2)**4*df(x1,t)*x1**11*x2*a1**9*ka*vm + 2160*df(x1,t,2)**
4*df(x1,t)*x1**10*x2**2*a1**9*ka*vm - 5040*df(x1,t,2)**4*df(x1,t)*x1**9*x2**3*a1**9*ka*vm + 7560*df(x1,t,2)**4*df(x1,t)*
x1**8*x2**4*a1**9*ka*vm - 7560*df(x1,t,2)**4*df(x1,t)*x1**7*x2**5*a1**9*ka*vm + 5040*df(x1,t,2)**4*df(x1,t)*x1**6*x2**6*
a1**9*ka*vm - 2160*df(x1,t,2)**4*df(x1,t)*x1**5*x2**7*a1**9*ka*vm + 540*df(x1,t,2)**4*df(x1,t)*x1**4*x2**8*a1**9*ka*vm -
 60*df(x1,t,2)**4*df(x1,t)*x1**3*x2**9*a1**9*ka*vm + 6*df(x1,t,2)**4*x1**13*a1**10*ka*vm - 60*df(x1,t,2)**4*x1**12*x2*a1
**10*ka*vm + 270*df(x1,t,2)**4*x1**11*x2**2*a1**10*ka*vm - 720*df(x1,t,2)**4*x1**10*x2**3*a1**10*ka*vm + 1260*df(x1,t,2)
**4*x1**9*x2**4*a1**10*ka*vm - 1512*df(x1,t,2)**4*x1**8*x2**5*a1**10*ka*vm + 1260*df(x1,t,2)**4*x1**7*x2**6*a1**10*ka*vm
 - 720*df(x1,t,2)**4*x1**6*x2**7*a1**10*ka*vm + 270*df(x1,t,2)**4*x1**5*x2**8*a1**10*ka*vm - 60*df(x1,t,2)**4*x1**4*x2**
9*a1**10*ka*vm + 6*df(x1,t,2)**4*x1**3*x2**10*a1**10*ka*vm - 15*df(x1,t,2)**3*df(x1,t)**12*x1**2*ka*vm + 2*df(x1,t,2)**3
*df(x1,t)**11*x1**3*ka*vm*( - 72*a1 - b1 + 3*b2) + 164*df(x1,t,2)**3*df(x1,t)**11*x1**2*x2*a1*ka*vm + 2*df(x1,t,2)**3*df
(x1,t)**10*x1**4*a1*ka*vm*( - 309*a1 - 12*a2 - 11*b1 + 33*b2) + 2*df(x1,t,2)**3*df(x1,t)**10*x1**3*x2*a1*ka*vm*(716*a1 +
 12*a2 + 11*b1 - 33*b2) - 814*df(x1,t,2)**3*df(x1,t)**10*x1**2*x2**2*a1**2*ka*vm + 10*df(x1,t,2)**3*df(x1,t)**9*x1**5*a1
**2*ka*vm*( - 156*a1 - 24*a2 - 11*b1 + 33*b2) + 20*df(x1,t,2)**3*df(x1,t)**9*x1**4*x2*a1**2*ka*vm*(277*a1 + 24*a2 + 11*
b1 - 33*b2) + 10*df(x1,t,2)**3*df(x1,t)**9*x1**3*x2**2*a1**2*ka*vm*( - 640*a1 - 24*a2 - 11*b1 + 33*b2) + 2420*df(x1,t,2)
**3*df(x1,t)**9*x1**2*x2**3*a1**3*ka*vm + 15*df(x1,t,2)**3*df(x1,t)**8*x1**6*a1**3*ka*vm*( - 171*a1 - 72*a2 - 22*b1 + 66
*b2) + 30*df(x1,t,2)**3*df(x1,t)**8*x1**5*x2*a1**3*ka*vm*(416*a1 + 108*a2 + 33*b1 - 99*b2) + 90*df(x1,t,2)**3*df(x1,t)**
8*x1**4*x2**2*a1**3*ka*vm*( - 245*a1 - 36*a2 - 11*b1 + 33*b2) + 30*df(x1,t,2)**3*df(x1,t)**8*x1**3*x2**3*a1**3*ka*vm*(
564*a1 + 36*a2 + 11*b1 - 33*b2) - 4785*df(x1,t,2)**3*df(x1,t)**8*x1**2*x2**4*a1**4*ka*vm + 60*df(x1,t,2)**3*df(x1,t)**7*
x1**7*a1**4*ka*vm*( - 48*a1 - 48*a2 - 11*b1 + 33*b2) + 120*df(x1,t,2)**3*df(x1,t)**7*x1**6*x2*a1**4*ka*vm*(151*a1 + 96*
a2 + 22*b1 - 66*b2) + 120*df(x1,t,2)**3*df(x1,t)**7*x1**5*x2**2*a1**4*ka*vm*( - 364*a1 - 144*a2 - 33*b1 + 99*b2) + 240*
df(x1,t,2)**3*df(x1,t)**7*x1**4*x2**3*a1**4*ka*vm*(213*a1 + 48*a2 + 11*b1 - 33*b2) + 60*df(x1,t,2)**3*df(x1,t)**7*x1**3*
x2**4*a1**4*ka*vm*( - 488*a1 - 48*a2 - 11*b1 + 33*b2) + 6600*df(x1,t,2)**3*df(x1,t)**7*x1**2*x2**5*a1**5*ka*vm + 84*df(
x1,t,2)**3*df(x1,t)**6*x1**8*a1**5*ka*vm*( - 27*a1 - 60*a2 - 11*b1 + 33*b2) + 84*df(x1,t,2)**3*df(x1,t)**6*x1**7*x2*a1**
5*ka*vm*(212*a1 + 300*a2 + 55*b1 - 165*b2) + 420*df(x1,t,2)**3*df(x1,t)**6*x1**6*x2**2*a1**5*ka*vm*( - 131*a1 - 120*a2 -
 22*b1 + 66*b2) + 840*df(x1,t,2)**3*df(x1,t)**6*x1**5*x2**3*a1**5*ka*vm*(104*a1 + 60*a2 + 11*b1 - 33*b2) + 420*df(x1,t,2
)**3*df(x1,t)**6*x1**4*x2**4*a1**5*ka*vm*( - 181*a1 - 60*a2 - 11*b1 + 33*b2) + 84*df(x1,t,2)**3*df(x1,t)**6*x1**3*x2**5*
a1**5*ka*vm*(412*a1 + 60*a2 + 11*b1 - 33*b2) - 6468*df(x1,t,2)**3*df(x1,t)**6*x1**2*x2**6*a1**6*ka*vm + 12*df(x1,t,2)**3
*df(x1,t)**5*x1**9*a1**6*ka*vm*( - 108*a1 - 504*a2 - 77*b1 + 231*b2) + 168*df(x1,t,2)**3*df(x1,t)**5*x1**8*x2*a1**6*ka*
vm*(73*a1 + 216*a2 + 33*b1 - 99*b2) + 252*df(x1,t,2)**3*df(x1,t)**5*x1**7*x2**2*a1**6*ka*vm*( - 184*a1 - 360*a2 - 55*b1 
+ 165*b2) + 840*df(x1,t,2)**3*df(x1,t)**5*x1**6*x2**3*a1**6*ka*vm*(111*a1 + 144*a2 + 22*b1 - 66*b2) + 420*df(x1,t,2)**3*
df(x1,t)**5*x1**5*x2**4*a1**6*ka*vm*( - 260*a1 - 216*a2 - 33*b1 + 99*b2) + 504*df(x1,t,2)**3*df(x1,t)**5*x1**4*x2**5*a1
**6*ka*vm*(149*a1 + 72*a2 + 11*b1 - 33*b2) + 84*df(x1,t,2)**3*df(x1,t)**5*x1**3*x2**6*a1**6*ka*vm*( - 336*a1 - 72*a2 - 
11*b1 + 33*b2) + 4488*df(x1,t,2)**3*df(x1,t)**5*x1**2*x2**7*a1**7*ka*vm + 15*df(x1,t,2)**3*df(x1,t)**4*x1**10*a1**7*ka*
vm*( - 39*a1 - 336*a2 - 44*b1 + 132*b2) + 60*df(x1,t,2)**3*df(x1,t)**4*x1**9*x2*a1**7*ka*vm*(104*a1 + 588*a2 + 77*b1 - 
231*b2) + 420*df(x1,t,2)**3*df(x1,t)**4*x1**8*x2**2*a1**7*ka*vm*( - 65*a1 - 252*a2 - 33*b1 + 99*b2) + 420*df(x1,t,2)**3*
df(x1,t)**4*x1**7*x2**3*a1**7*ka*vm*(156*a1 + 420*a2 + 55*b1 - 165*b2) + 1050*df(x1,t,2)**3*df(x1,t)**4*x1**6*x2**4*a1**
7*ka*vm*( - 91*a1 - 168*a2 - 22*b1 + 66*b2) + 420*df(x1,t,2)**3*df(x1,t)**4*x1**5*x2**5*a1**7*ka*vm*(208*a1 + 252*a2 + 
33*b1 - 99*b2) + 420*df(x1,t,2)**3*df(x1,t)**4*x1**4*x2**6*a1**7*ka*vm*( - 117*a1 - 84*a2 - 11*b1 + 33*b2) + 60*df(x1,t,
2)**3*df(x1,t)**4*x1**3*x2**7*a1**7*ka*vm*(260*a1 + 84*a2 + 11*b1 - 33*b2) - 2145*df(x1,t,2)**3*df(x1,t)**4*x1**2*x2**8*
a1**8*ka*vm + 30*df(x1,t,2)**3*df(x1,t)**3*x1**11*a1**8*ka*vm*( - 8*a1 - 96*a2 - 11*b1 + 33*b2) + 60*df(x1,t,2)**3*df(x1
,t)**3*x1**10*x2*a1**8*ka*vm*(43*a1 + 384*a2 + 44*b1 - 132*b2) + 120*df(x1,t,2)**3*df(x1,t)**3*x1**9*x2**2*a1**8*ka*vm*(
 - 100*a1 - 672*a2 - 77*b1 + 231*b2) + 1680*df(x1,t,2)**3*df(x1,t)**3*x1**8*x2**3*a1**8*ka*vm*(19*a1 + 96*a2 + 11*b1 - 
33*b2) + 420*df(x1,t,2)**3*df(x1,t)**3*x1**7*x2**4*a1**8*ka*vm*( - 128*a1 - 480*a2 - 55*b1 + 165*b2) + 840*df(x1,t,2)**3
*df(x1,t)**3*x1**6*x2**5*a1**8*ka*vm*(71*a1 + 192*a2 + 22*b1 - 66*b2) + 840*df(x1,t,2)**3*df(x1,t)**3*x1**5*x2**6*a1**8*
ka*vm*( - 52*a1 - 96*a2 - 11*b1 + 33*b2) + 240*df(x1,t,2)**3*df(x1,t)**3*x1**4*x2**7*a1**8*ka*vm*(85*a1 + 96*a2 + 11*b1 
- 33*b2) + 30*df(x1,t,2)**3*df(x1,t)**3*x1**3*x2**8*a1**8*ka*vm*( - 184*a1 - 96*a2 - 11*b1 + 33*b2) + 660*df(x1,t,2)**3*
df(x1,t)**3*x1**2*x2**9*a1**9*ka*vm + 10*df(x1,t,2)**3*df(x1,t)**2*x1**12*a1**9*ka*vm*( - 9*a1 - 108*a2 - 11*b1 + 33*b2)
 + 10*df(x1,t,2)**3*df(x1,t)**2*x1**11*x2*a1**9*ka*vm*(92*a1 + 972*a2 + 99*b1 - 297*b2) + 90*df(x1,t,2)**3*df(x1,t)**2*
x1**10*x2**2*a1**9*ka*vm*( - 47*a1 - 432*a2 - 44*b1 + 132*b2) + 120*df(x1,t,2)**3*df(x1,t)**2*x1**9*x2**3*a1**9*ka*vm*(
96*a1 + 756*a2 + 77*b1 - 231*b2) + 420*df(x1,t,2)**3*df(x1,t)**2*x1**8*x2**4*a1**9*ka*vm*( - 49*a1 - 324*a2 - 33*b1 + 99
*b2) + 1260*df(x1,t,2)**3*df(x1,t)**2*x1**7*x2**5*a1**9*ka*vm*(20*a1 + 108*a2 + 11*b1 - 33*b2) + 420*df(x1,t,2)**3*df(x1
,t)**2*x1**6*x2**6*a1**9*ka*vm*( - 51*a1 - 216*a2 - 22*b1 + 66*b2) + 120*df(x1,t,2)**3*df(x1,t)**2*x1**5*x2**7*a1**9*ka*
vm*(104*a1 + 324*a2 + 33*b1 - 99*b2) + 90*df(x1,t,2)**3*df(x1,t)**2*x1**4*x2**8*a1**9*ka*vm*( - 53*a1 - 108*a2 - 11*b1 +
 33*b2) + 10*df(x1,t,2)**3*df(x1,t)**2*x1**3*x2**9*a1**9*ka*vm*(108*a1 + 108*a2 + 11*b1 - 33*b2) - 110*df(x1,t,2)**3*df(
x1,t)**2*x1**2*x2**10*a1**10*ka*vm + 2*df(x1,t,2)**3*df(x1,t)*x1**13*a1**10*ka*vm*( - 12*a1 - 120*a2 - 11*b1 + 33*b2) + 
4*df(x1,t,2)**3*df(x1,t)*x1**12*x2*a1**10*ka*vm*(61*a1 + 600*a2 + 55*b1 - 165*b2) + 10*df(x1,t,2)**3*df(x1,t)*x1**11*x2
**2*a1**10*ka*vm*( - 112*a1 - 1080*a2 - 99*b1 + 297*b2) + 60*df(x1,t,2)**3*df(x1,t)*x1**10*x2**3*a1**10*ka*vm*(51*a1 + 
480*a2 + 44*b1 - 132*b2) + 60*df(x1,t,2)**3*df(x1,t)*x1**9*x2**4*a1**10*ka*vm*( - 92*a1 - 840*a2 - 77*b1 + 231*b2) + 168
*df(x1,t,2)**3*df(x1,t)*x1**8*x2**5*a1**10*ka*vm*(41*a1 + 360*a2 + 33*b1 - 99*b2) + 84*df(x1,t,2)**3*df(x1,t)*x1**7*x2**
6*a1**10*ka*vm*( - 72*a1 - 600*a2 - 55*b1 + 165*b2) + 120*df(x1,t,2)**3*df(x1,t)*x1**6*x2**7*a1**10*ka*vm*(31*a1 + 240*
a2 + 22*b1 - 66*b2) + 30*df(x1,t,2)**3*df(x1,t)*x1**5*x2**8*a1**10*ka*vm*( - 52*a1 - 360*a2 - 33*b1 + 99*b2) + 20*df(x1,
t,2)**3*df(x1,t)*x1**4*x2**9*a1**10*ka*vm*(21*a1 + 120*a2 + 11*b1 - 33*b2) + 2*df(x1,t,2)**3*df(x1,t)*x1**3*x2**10*a1**
10*ka*vm*( - 32*a1 - 120*a2 - 11*b1 + 33*b2) + 4*df(x1,t,2)**3*df(x1,t)*x1**2*x2**11*a1**11*ka*vm + df(x1,t,2)**3*x1**14
*a1**11*ka*vm*( - 3*a1 - 24*a2 - 2*b1 + 6*b2) + 2*df(x1,t,2)**3*x1**13*x2*a1**11*ka*vm*(16*a1 + 132*a2 + 11*b1 - 33*b2) 
+ 22*df(x1,t,2)**3*x1**12*x2**2*a1**11*ka*vm*( - 7*a1 - 60*a2 - 5*b1 + 15*b2) + 110*df(x1,t,2)**3*x1**11*x2**3*a1**11*ka
*vm*(4*a1 + 36*a2 + 3*b1 - 9*b2) + 165*df(x1,t,2)**3*x1**10*x2**4*a1**11*ka*vm*( - 5*a1 - 48*a2 - 4*b1 + 12*b2) + 132*df
(x1,t,2)**3*x1**9*x2**5*a1**11*ka*vm*(8*a1 + 84*a2 + 7*b1 - 21*b2) + 924*df(x1,t,2)**3*x1**8*x2**6*a1**11*ka*vm*( - a1 -
 12*a2 - b1 + 3*b2) + 132*df(x1,t,2)**3*x1**7*x2**7*a1**11*ka*vm*(4*a1 + 60*a2 + 5*b1 - 15*b2) + 165*df(x1,t,2)**3*x1**6
*x2**8*a1**11*ka*vm*( - a1 - 24*a2 - 2*b1 + 6*b2) + 110*df(x1,t,2)**3*x1**5*x2**9*a1**11*ka*vm*(12*a2 + b1 - 3*b2) + 22*
df(x1,t,2)**3*x1**4*x2**10*a1**11*ka*vm*(a1 - 12*a2 - b1 + 3*b2) + 2*df(x1,t,2)**3*x1**3*x2**11*a1**11*ka*vm*( - 4*a1 + 
12*a2 + b1 - 3*b2) + df(x1,t,2)**3*x1**2*x2**12*a1**12*ka*vm + 3*df(x1,t,2)**2*df(x1,t)**15*x1*( - ka + kc) + df(x1,t,2)
**2*df(x1,t)**14*x1**2*( - 42*a1*ka + 43*a1*kc - b1*ka) + 43*df(x1,t,2)**2*df(x1,t)**14*x1*x2*a1*(ka - kc) + 10*df(x1,t,
2)**2*df(x1,t)**14*x1*ka*vm + 7*df(x1,t,2)**2*df(x1,t)**13*x1**3*a1*( - 39*a1*ka + 41*a1*kc - 2*b1*ka) + 14*df(x1,t,2)**
2*df(x1,t)**13*x1**2*x2*a1*(40*a1*ka - 41*a1*kc + b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**13*x1**2*ka*vm*(40*a1 + 3*b1) + 287
*df(x1,t,2)**2*df(x1,t)**13*x1*x2**2*a1**2*( - ka + kc) - 115*df(x1,t,2)**2*df(x1,t)**13*x1*x2*a1*ka*vm + 91*df(x1,t,2)
**2*df(x1,t)**12*x1**4*a1**2*( - 12*a1*ka + 13*a1*kc - b1*ka) + 91*df(x1,t,2)**2*df(x1,t)**12*x1**3*x2*a1**2*(37*a1*ka -
 39*a1*kc + 2*b1*ka) + df(x1,t,2)**2*df(x1,t)**12*x1**3*ka*vm*(256*a1**2 + 49*a1*a2 + 66*a1*b1 + 15*a1*b2 - 3*b1*b2 - 3*
b2**2) + 91*df(x1,t,2)**2*df(x1,t)**12*x1**2*x2**2*a1**2*( - 38*a1*ka + 39*a1*kc - b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**12
*x1**2*x2*a1*ka*vm*( - 414*a1 - 23*a2 - 36*b1 - 2*b2) + 1183*df(x1,t,2)**2*df(x1,t)**12*x1*x2**3*a1**3*(ka - kc) + 599*
df(x1,t,2)**2*df(x1,t)**12*x1*x2**2*a1**2*ka*vm + 91*df(x1,t,2)**2*df(x1,t)**11*x1**5*a1**3*( - 33*a1*ka + 37*a1*kc - 4*
b1*ka) + 364*df(x1,t,2)**2*df(x1,t)**11*x1**4*x2*a1**3*(34*a1*ka - 37*a1*kc + 3*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**11*x1
**4*a1*ka*vm*(180*a1**2 + 236*a1*a2 + 165*a1*b1 + 81*a1*b2 - 2*a2**2 + 3*a2*b1 - 9*a2*b2 - 18*b1*b2 - 18*b2**2) + 546*df
(x1,t,2)**2*df(x1,t)**11*x1**3*x2**2*a1**3*( - 35*a1*ka + 37*a1*kc - 2*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**11*x1**3*x2*a1
*ka*vm*( - 1159*a1**2 - 488*a1*a2 - 363*a1*b1 - 105*a1*b2 + 2*a2**2 - 3*a2*b1 + 9*a2*b2 + 18*b1*b2 + 18*b2**2) + 364*df(
x1,t,2)**2*df(x1,t)**11*x1**2*x2**3*a1**3*(36*a1*ka - 37*a1*kc + b1*ka) + 12*df(x1,t,2)**2*df(x1,t)**11*x1**2*x2**2*a1**
2*ka*vm*(318*a1 + 42*a2 + 33*b1 + 4*b2) + 3367*df(x1,t,2)**2*df(x1,t)**11*x1*x2**4*a1**4*( - ka + kc) - 1858*df(x1,t,2)
**2*df(x1,t)**11*x1*x2**3*a1**3*ka*vm + 1001*df(x1,t,2)**2*df(x1,t)**10*x1**6*a1**4*( - 6*a1*ka + 7*a1*kc - b1*ka) + 
1001*df(x1,t,2)**2*df(x1,t)**10*x1**5*x2*a1**4*(31*a1*ka - 35*a1*kc + 4*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**10*x1**5*a1**
2*ka*vm*( - 15*a1**2 + 1015*a1*a2 + 495*a1*b1 + 396*a1*b2 - 4*a2**2 + 33*a2*b1 - 99*a2*b2 - 99*b1*b2 - 99*b2**2) + 2002*
df(x1,t,2)**2*df(x1,t)**10*x1**4*x2**2*a1**4*( - 32*a1*ka + 35*a1*kc - 3*b1*ka) + 4*df(x1,t,2)**2*df(x1,t)**10*x1**4*x2*
a1**2*ka*vm*( - 645*a1**2 - 1642*a1*a2 - 825*a1*b1 - 462*a1*b2 + 4*a2**2 - 33*a2*b1 + 99*a2*b2 + 99*b1*b2 + 99*b2**2) + 
2002*df(x1,t,2)**2*df(x1,t)**10*x1**3*x2**3*a1**4*(33*a1*ka - 35*a1*kc + 2*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**10*x1**3*
x2**2*a1**2*ka*vm*(4517*a1**2 + 3523*a1*a2 + 1815*a1*b1 + 660*a1*b2 - 4*a2**2 + 33*a2*b1 - 99*a2*b2 - 99*b1*b2 - 99*b2**
2) + 1001*df(x1,t,2)**2*df(x1,t)**10*x1**2*x2**4*a1**4*( - 34*a1*ka + 35*a1*kc - b1*ka) + 44*df(x1,t,2)**2*df(x1,t)**10*
x1**2*x2**3*a1**3*ka*vm*( - 232*a1 - 57*a2 - 30*b1 - 6*b2) + 7007*df(x1,t,2)**2*df(x1,t)**10*x1*x2**5*a1**5*(ka - kc) + 
3784*df(x1,t,2)**2*df(x1,t)**10*x1*x2**4*a1**4*ka*vm + 1001*df(x1,t,2)**2*df(x1,t)**9*x1**7*a1**5*( - 9*a1*ka + 11*a1*kc
 - 2*b1*ka) + 2002*df(x1,t,2)**2*df(x1,t)**9*x1**6*x2*a1**5*(28*a1*ka - 33*a1*kc + 5*b1*ka) + 10*df(x1,t,2)**2*df(x1,t)
**9*x1**6*a1**3*ka*vm*( - 96*a1**2 + 512*a1*a2 + 198*a1*b1 + 231*a1*b2 + 14*a2**2 + 33*a2*b1 - 99*a2*b2 - 66*b1*b2 - 66*
b2**2) + 5005*df(x1,t,2)**2*df(x1,t)**9*x1**5*x2**2*a1**5*( - 29*a1*ka + 33*a1*kc - 4*b1*ka) + 5*df(x1,t,2)**2*df(x1,t)
**9*x1**5*x2*a1**3*ka*vm*(279*a1**2 - 4568*a1*a2 - 1782*a1*b1 - 1562*a1*b2 - 84*a2**2 - 198*a2*b1 + 594*a2*b2 + 396*b1*
b2 + 396*b2**2) + 20020*df(x1,t,2)**2*df(x1,t)**9*x1**4*x2**3*a1**5*(10*a1*ka - 11*a1*kc + b1*ka) + 10*df(x1,t,2)**2*df(
x1,t)**9*x1**4*x2**2*a1**3*ka*vm*(680*a1**2 + 3780*a1*a2 + 1485*a1*b1 + 957*a1*b2 + 42*a2**2 + 99*a2*b1 - 297*a2*b2 - 
198*b1*b2 - 198*b2**2) + 5005*df(x1,t,2)**2*df(x1,t)**9*x1**3*x2**4*a1**5*( - 31*a1*ka + 33*a1*kc - 2*b1*ka) + 10*df(x1,
t,2)**2*df(x1,t)**9*x1**3*x2**3*a1**3*ka*vm*( - 1917*a1**2 - 2756*a1*a2 - 1089*a1*b1 - 495*a1*b2 - 14*a2**2 - 33*a2*b1 +
 99*a2*b2 + 66*b1*b2 + 66*b2**2) + 2002*df(x1,t,2)**2*df(x1,t)**9*x1**2*x2**5*a1**5*(32*a1*ka - 33*a1*kc + b1*ka) + 110*
df(x1,t,2)**2*df(x1,t)**9*x1**2*x2**4*a1**4*ka*vm*(156*a1 + 68*a2 + 27*b1 + 8*b2) + 11011*df(x1,t,2)**2*df(x1,t)**9*x1*
x2**6*a1**6*( - ka + kc) - 5225*df(x1,t,2)**2*df(x1,t)**9*x1*x2**5*a1**5*ka*vm + 429*df(x1,t,2)**2*df(x1,t)**8*x1**8*a1
**6*( - 24*a1*ka + 31*a1*kc - 7*b1*ka) + 3003*df(x1,t,2)**2*df(x1,t)**8*x1**7*x2*a1**6*(25*a1*ka - 31*a1*kc + 6*b1*ka) +
 3*df(x1,t,2)**2*df(x1,t)**8*x1**7*a1**4*ka*vm*( - 560*a1**2 + 2785*a1*a2 + 924*a1*b1 + 1485*a1*b2 + 320*a2**2 + 330*a2*
b1 - 990*a2*b2 - 495*b1*b2 - 495*b2**2) + 9009*df(x1,t,2)**2*df(x1,t)**8*x1**6*x2**2*a1**6*( - 26*a1*ka + 31*a1*kc - 5*
b1*ka) + 30*df(x1,t,2)**2*df(x1,t)**8*x1**6*x2*a1**4*ka*vm*(268*a1**2 - 1609*a1*a2 - 528*a1*b1 - 660*a1*b2 - 128*a2**2 -
 132*a2*b1 + 396*a2*b2 + 198*b1*b2 + 198*b2**2) + 15015*df(x1,t,2)**2*df(x1,t)**8*x1**5*x2**3*a1**6*(27*a1*ka - 31*a1*kc
 + 4*b1*ka) + 45*df(x1,t,2)**2*df(x1,t)**8*x1**5*x2**2*a1**4*ka*vm*( - 235*a1**2 + 2434*a1*a2 + 792*a1*b1 + 770*a1*b2 + 
128*a2**2 + 132*a2*b1 - 396*a2*b2 - 198*b1*b2 - 198*b2**2) + 15015*df(x1,t,2)**2*df(x1,t)**8*x1**4*x2**4*a1**6*( - 28*a1
*ka + 31*a1*kc - 3*b1*ka) + 60*df(x1,t,2)**2*df(x1,t)**8*x1**4*x2**3*a1**4*ka*vm*( - 75*a1**2 - 2042*a1*a2 - 660*a1*b1 -
 495*a1*b2 - 64*a2**2 - 66*a2*b1 + 198*a2*b2 + 99*b1*b2 + 99*b2**2) + 9009*df(x1,t,2)**2*df(x1,t)**8*x1**3*x2**5*a1**6*(
29*a1*ka - 31*a1*kc + 2*b1*ka) + 15*df(x1,t,2)**2*df(x1,t)**8*x1**3*x2**4*a1**4*ka*vm*(1450*a1**2 + 4517*a1*a2 + 1452*a1
*b1 + 825*a1*b2 + 64*a2**2 + 66*a2*b1 - 198*a2*b2 - 99*b1*b2 - 99*b2**2) + 3003*df(x1,t,2)**2*df(x1,t)**8*x1**2*x2**6*a1
**6*( - 30*a1*ka + 31*a1*kc - b1*ka) + 198*df(x1,t,2)**2*df(x1,t)**8*x1**2*x2**5*a1**5*ka*vm*( - 90*a1 - 75*a2 - 24*b1 -
 10*b2) + 13299*df(x1,t,2)**2*df(x1,t)**8*x1*x2**7*a1**7*(ka - kc) + 4785*df(x1,t,2)**2*df(x1,t)**8*x1*x2**6*a1**6*ka*vm
 + 429*df(x1,t,2)**2*df(x1,t)**7*x1**9*a1**7*( - 21*a1*ka + 29*a1*kc - 8*b1*ka) + 3432*df(x1,t,2)**2*df(x1,t)**7*x1**8*
x2*a1**7*(22*a1*ka - 29*a1*kc + 7*b1*ka) + 12*df(x1,t,2)**2*df(x1,t)**7*x1**8*a1**5*ka*vm*( - 124*a1**2 + 764*a1*a2 + 
231*a1*b1 + 495*a1*b2 + 250*a2**2 + 165*a2*b1 - 495*a2*b2 - 198*b1*b2 - 198*b2**2) + 12012*df(x1,t,2)**2*df(x1,t)**7*x1
**7*x2**2*a1**7*( - 23*a1*ka + 29*a1*kc - 6*b1*ka) + 12*df(x1,t,2)**2*df(x1,t)**7*x1**7*x2*a1**5*ka*vm*(917*a1**2 - 5536
*a1*a2 - 1617*a1*b1 - 2739*a1*b2 - 1250*a2**2 - 825*a2*b1 + 2475*a2*b2 + 990*b1*b2 + 990*b2**2) + 24024*df(x1,t,2)**2*df
(x1,t)**7*x1**6*x2**3*a1**7*(24*a1*ka - 29*a1*kc + 5*b1*ka) + 24*df(x1,t,2)**2*df(x1,t)**7*x1**6*x2**2*a1**5*ka*vm*( - 
1258*a1**2 + 8110*a1*a2 + 2310*a1*b1 + 3135*a1*b2 + 1250*a2**2 + 825*a2*b1 - 2475*a2*b2 - 990*b1*b2 - 990*b2**2) + 30030
*df(x1,t,2)**2*df(x1,t)**7*x1**5*x2**4*a1**7*( - 25*a1*ka + 29*a1*kc - 4*b1*ka) + 60*df(x1,t,2)**2*df(x1,t)**7*x1**5*x2
**3*a1**5*ka*vm*(633*a1**2 - 4960*a1*a2 - 1386*a1*b1 - 1518*a1*b2 - 500*a2**2 - 330*a2*b1 + 990*a2*b2 + 396*b1*b2 + 396*
b2**2) + 24024*df(x1,t,2)**2*df(x1,t)**7*x1**4*x2**5*a1**7*(26*a1*ka - 29*a1*kc + 3*b1*ka) + 60*df(x1,t,2)**2*df(x1,t)**
7*x1**4*x2**4*a1**5*ka*vm*( - 300*a1**2 + 4196*a1*a2 + 1155*a1*b1 + 1023*a1*b2 + 250*a2**2 + 165*a2*b1 - 495*a2*b2 - 198
*b1*b2 - 198*b2**2) + 12012*df(x1,t,2)**2*df(x1,t)**7*x1**3*x2**6*a1**7*( - 27*a1*ka + 29*a1*kc - 2*b1*ka) + 12*df(x1,t,
2)**2*df(x1,t)**7*x1**3*x2**5*a1**5*ka*vm*( - 481*a1**2 - 9344*a1*a2 - 2541*a1*b1 - 1815*a1*b2 - 250*a2**2 - 165*a2*b1 +
 495*a2*b2 + 198*b1*b2 + 198*b2**2) + 3432*df(x1,t,2)**2*df(x1,t)**7*x1**2*x2**7*a1**7*(28*a1*ka - 29*a1*kc + b1*ka) + 
264*df(x1,t,2)**2*df(x1,t)**7*x1**2*x2**6*a1**6*ka*vm*(34*a1 + 78*a2 + 21*b1 + 12*b2) + 12441*df(x1,t,2)**2*df(x1,t)**7*
x1*x2**8*a1**8*( - ka + kc) - 2508*df(x1,t,2)**2*df(x1,t)**7*x1*x2**7*a1**7*ka*vm + 3003*df(x1,t,2)**2*df(x1,t)**6*x1**
10*a1**8*( - 2*a1*ka + 3*a1*kc - b1*ka) + 3003*df(x1,t,2)**2*df(x1,t)**6*x1**9*x2*a1**8*(19*a1*ka - 27*a1*kc + 8*b1*ka) 
+ 6*df(x1,t,2)**2*df(x1,t)**6*x1**9*a1**6*ka*vm*( - 115*a1**2 + 1134*a1*a2 + 330*a1*b1 + 924*a1*b2 + 952*a2**2 + 462*a2*
b1 - 1386*a2*b2 - 462*b1*b2 - 462*b2**2) + 12012*df(x1,t,2)**2*df(x1,t)**6*x1**8*x2**2*a1**8*( - 20*a1*ka + 27*a1*kc - 7
*b1*ka) + 24*df(x1,t,2)**2*df(x1,t)**6*x1**8*x2*a1**6*ka*vm*(321*a1**2 - 2548*a1*a2 - 693*a1*b1 - 1540*a1*b2 - 1428*a2**
2 - 693*a2*b1 + 2079*a2*b2 + 693*b1*b2 + 693*b2**2) + 84084*df(x1,t,2)**2*df(x1,t)**6*x1**7*x2**3*a1**8*(7*a1*ka - 9*a1*
kc + 2*b1*ka) + 84*df(x1,t,2)**2*df(x1,t)**6*x1**7*x2**2*a1**6*ka*vm*( - 377*a1**2 + 2667*a1*a2 + 693*a1*b1 + 1254*a1*b2
 + 1020*a2**2 + 495*a2*b1 - 1485*a2*b2 - 495*b1*b2 - 495*b2**2) + 42042*df(x1,t,2)**2*df(x1,t)**6*x1**6*x2**4*a1**8*( - 
22*a1*ka + 27*a1*kc - 5*b1*ka) + 168*df(x1,t,2)**2*df(x1,t)**6*x1**6*x2**3*a1**6*ka*vm*(398*a1**2 - 2625*a1*a2 - 660*a1*
b1 - 990*a1*b2 - 680*a2**2 - 330*a2*b1 + 990*a2*b2 + 330*b1*b2 + 330*b2**2) + 42042*df(x1,t,2)**2*df(x1,t)**6*x1**5*x2**
5*a1**8*(23*a1*ka - 27*a1*kc + 4*b1*ka) + 420*df(x1,t,2)**2*df(x1,t)**6*x1**5*x2**4*a1**6*ka*vm*( - 192*a1**2 + 1211*a1*
a2 + 297*a1*b1 + 374*a1*b2 + 204*a2**2 + 99*a2*b1 - 297*a2*b2 - 99*b1*b2 - 99*b2**2) + 84084*df(x1,t,2)**2*df(x1,t)**6*
x1**4*x2**6*a1**8*( - 8*a1*ka + 9*a1*kc - b1*ka) + 168*df(x1,t,2)**2*df(x1,t)**6*x1**4*x2**5*a1**6*ka*vm*(335*a1**2 - 
2058*a1*a2 - 495*a1*b1 - 528*a1*b2 - 204*a2**2 - 99*a2*b1 + 297*a2*b2 + 99*b1*b2 + 99*b2**2) + 12012*df(x1,t,2)**2*df(x1
,t)**6*x1**3*x2**7*a1**8*(25*a1*ka - 27*a1*kc + 2*b1*ka) + 84*df(x1,t,2)**2*df(x1,t)**6*x1**3*x2**6*a1**6*ka*vm*( - 251*
a1**2 + 1533*a1*a2 + 363*a1*b1 + 330*a1*b2 + 68*a2**2 + 33*a2*b1 - 99*a2*b2 - 33*b1*b2 - 33*b2**2) + 3003*df(x1,t,2)**2*
df(x1,t)**6*x1**2*x2**8*a1**8*( - 26*a1*ka + 27*a1*kc - b1*ka) + 264*df(x1,t,2)**2*df(x1,t)**6*x1**2*x2**7*a1**7*ka*vm*(
12*a1 - 77*a2 - 18*b1 - 14*b2) + 9009*df(x1,t,2)**2*df(x1,t)**6*x1*x2**9*a1**9*(ka - kc) + 66*df(x1,t,2)**2*df(x1,t)**6*
x1*x2**8*a1**8*ka*vm + 1001*df(x1,t,2)**2*df(x1,t)**5*x1**11*a1**9*( - 3*a1*ka + 5*a1*kc - 2*b1*ka) + 2002*df(x1,t,2)**2
*df(x1,t)**5*x1**10*x2*a1**9*(16*a1*ka - 25*a1*kc + 9*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**5*x1**10*a1**7*ka*vm*( - 40*a1
**2 + 1680*a1*a2 + 495*a1*b1 + 1782*a1*b2 + 3612*a2**2 + 1386*a2*b1 - 4158*a2*b2 - 1188*b1*b2 - 1188*b2**2) + 9009*df(x1
,t,2)**2*df(x1,t)**5*x1**9*x2**2*a1**9*( - 17*a1*ka + 25*a1*kc - 8*b1*ka) + 3*df(x1,t,2)**2*df(x1,t)**5*x1**9*x2*a1**7*
ka*vm*(865*a1**2 - 12592*a1*a2 - 3300*a1*b1 - 9372*a1*b2 - 16856*a2**2 - 6468*a2*b1 + 19404*a2*b2 + 5544*b1*b2 + 5544*b2
**2) + 24024*df(x1,t,2)**2*df(x1,t)**5*x1**8*x2**3*a1**9*(18*a1*ka - 25*a1*kc + 7*b1*ka) + 36*df(x1,t,2)**2*df(x1,t)**5*
x1**8*x2**2*a1**7*ka*vm*( - 472*a1**2 + 4732*a1*a2 + 1155*a1*b1 + 2695*a1*b2 + 4214*a2**2 + 1617*a2*b1 - 4851*a2*b2 - 
1386*b1*b2 - 1386*b2**2) + 42042*df(x1,t,2)**2*df(x1,t)**5*x1**7*x2**4*a1**9*( - 19*a1*ka + 25*a1*kc - 6*b1*ka) + 84*df(
x1,t,2)**2*df(x1,t)**5*x1**7*x2**3*a1**7*ka*vm*(631*a1**2 - 4964*a1*a2 - 1155*a1*b1 - 2277*a1*b2 - 3010*a2**2 - 1155*a2*
b1 + 3465*a2*b2 + 990*b1*b2 + 990*b2**2) + 252252*df(x1,t,2)**2*df(x1,t)**5*x1**6*x2**5*a1**9*(4*a1*ka - 5*a1*kc + b1*ka
) + 84*df(x1,t,2)**2*df(x1,t)**5*x1**6*x2**4*a1**7*ka*vm*( - 1148*a1**2 + 7340*a1*a2 + 1650*a1*b1 + 2805*a1*b2 + 3010*a2
**2 + 1155*a2*b1 - 3465*a2*b2 - 990*b1*b2 - 990*b2**2) + 42042*df(x1,t,2)**2*df(x1,t)**5*x1**5*x2**6*a1**9*( - 21*a1*ka 
+ 25*a1*kc - 4*b1*ka) + 126*df(x1,t,2)**2*df(x1,t)**5*x1**5*x2**5*a1**7*ka*vm*(875*a1**2 - 4520*a1*a2 - 990*a1*b1 - 1474
*a1*b2 - 1204*a2**2 - 462*a2*b1 + 1386*a2*b2 + 396*b1*b2 + 396*b2**2) + 24024*df(x1,t,2)**2*df(x1,t)**5*x1**4*x2**7*a1**
9*(22*a1*ka - 25*a1*kc + 3*b1*ka) + 84*df(x1,t,2)**2*df(x1,t)**5*x1**4*x2**6*a1**7*ka*vm*( - 960*a1**2 + 3844*a1*a2 + 
825*a1*b1 + 1089*a1*b2 + 602*a2**2 + 231*a2*b1 - 693*a2*b2 - 198*b1*b2 - 198*b2**2) + 9009*df(x1,t,2)**2*df(x1,t)**5*x1
**3*x2**8*a1**9*( - 23*a1*ka + 25*a1*kc - 2*b1*ka) + 12*df(x1,t,2)**2*df(x1,t)**5*x1**3*x2**7*a1**7*ka*vm*(3061*a1**2 - 
8596*a1*a2 - 1815*a1*b1 - 2145*a1*b2 - 602*a2**2 - 231*a2*b1 + 693*a2*b2 + 198*b1*b2 + 198*b2**2) + 2002*df(x1,t,2)**2*
df(x1,t)**5*x1**2*x2**9*a1**9*(24*a1*ka - 25*a1*kc + b1*ka) + 198*df(x1,t,2)**2*df(x1,t)**5*x1**2*x2**8*a1**8*ka*vm*( - 
48*a1 + 72*a2 + 15*b1 + 16*b2) + 5005*df(x1,t,2)**2*df(x1,t)**5*x1*x2**10*a1**10*( - ka + kc) + 1067*df(x1,t,2)**2*df(x1
,t)**5*x1*x2**9*a1**9*ka*vm + 91*df(x1,t,2)**2*df(x1,t)**4*x1**12*a1**10*( - 12*a1*ka + 23*a1*kc - 11*b1*ka) + 1001*df(
x1,t,2)**2*df(x1,t)**4*x1**11*x2*a1**10*(13*a1*ka - 23*a1*kc + 10*b1*ka) + 5*df(x1,t,2)**2*df(x1,t)**4*x1**11*a1**8*ka*
vm*(16*a1**2 + 219*a1*a2 + 66*a1*b1 + 297*a1*b2 + 1248*a2**2 + 396*a2*b1 - 1188*a2*b2 - 297*b1*b2 - 297*b2**2) + 5005*df
(x1,t,2)**2*df(x1,t)**4*x1**10*x2**2*a1**10*( - 14*a1*ka + 23*a1*kc - 9*b1*ka) + 10*df(x1,t,2)**2*df(x1,t)**4*x1**10*x2*
a1**8*ka*vm*(2*a1**2 - 1569*a1*a2 - 396*a1*b1 - 1386*a1*b2 - 4992*a2**2 - 1584*a2*b1 + 4752*a2*b2 + 1188*b1*b2 + 1188*b2
**2) + 15015*df(x1,t,2)**2*df(x1,t)**4*x1**9*x2**3*a1**10*(15*a1*ka - 23*a1*kc + 8*b1*ka) + 15*df(x1,t,2)**2*df(x1,t)**4
*x1**9*x2**2*a1**8*ka*vm*( - 265*a1**2 + 5740*a1*a2 + 1320*a1*b1 + 3828*a1*b2 + 11648*a2**2 + 3696*a2*b1 - 11088*a2*b2 -
 2772*b1*b2 - 2772*b2**2) + 30030*df(x1,t,2)**2*df(x1,t)**4*x1**8*x2**4*a1**10*( - 16*a1*ka + 23*a1*kc - 7*b1*ka) + 120*
df(x1,t,2)**2*df(x1,t)**4*x1**8*x2**3*a1**8*ka*vm*(179*a1**2 - 2128*a1*a2 - 462*a1*b1 - 1155*a1*b2 - 2912*a2**2 - 924*a2
*b1 + 2772*a2*b2 + 693*b1*b2 + 693*b2**2) + 42042*df(x1,t,2)**2*df(x1,t)**4*x1**7*x2**5*a1**10*(17*a1*ka - 23*a1*kc + 6*
b1*ka) + 210*df(x1,t,2)**2*df(x1,t)**4*x1**7*x2**4*a1**8*ka*vm*( - 274*a1**2 + 2213*a1*a2 + 462*a1*b1 + 1023*a1*b2 + 
2080*a2**2 + 660*a2*b1 - 1980*a2*b2 - 495*b1*b2 - 495*b2**2) + 42042*df(x1,t,2)**2*df(x1,t)**4*x1**6*x2**6*a1**10*( - 18
*a1*ka + 23*a1*kc - 5*b1*ka) + 420*df(x1,t,2)**2*df(x1,t)**4*x1**6*x2**5*a1**8*ka*vm*(224*a1**2 - 1301*a1*a2 - 264*a1*b1
 - 528*a1*b2 - 832*a2**2 - 264*a2*b1 + 792*a2*b2 + 198*b1*b2 + 198*b2**2) + 30030*df(x1,t,2)**2*df(x1,t)**4*x1**5*x2**7*
a1**10*(19*a1*ka - 23*a1*kc + 4*b1*ka) + 210*df(x1,t,2)**2*df(x1,t)**4*x1**5*x2**6*a1**8*ka*vm*( - 477*a1**2 + 1994*a1*
a2 + 396*a1*b1 + 726*a1*b2 + 832*a2**2 + 264*a2*b1 - 792*a2*b2 - 198*b1*b2 - 198*b2**2) + 15015*df(x1,t,2)**2*df(x1,t)**
4*x1**4*x2**8*a1**10*( - 20*a1*ka + 23*a1*kc - 3*b1*ka) + 120*df(x1,t,2)**2*df(x1,t)**4*x1**4*x2**7*a1**8*ka*vm*(585*a1
**2 - 1690*a1*a2 - 330*a1*b1 - 561*a1*b2 - 416*a2**2 - 132*a2*b1 + 396*a2*b2 + 99*b1*b2 + 99*b2**2) + 5005*df(x1,t,2)**2
*df(x1,t)**4*x1**3*x2**9*a1**10*(21*a1*ka - 23*a1*kc + 2*b1*ka) + 15*df(x1,t,2)**2*df(x1,t)**4*x1**3*x2**8*a1**8*ka*vm*(
 - 2092*a1**2 + 3769*a1*a2 + 726*a1*b1 + 1155*a1*b2 + 416*a2**2 + 132*a2*b1 - 396*a2*b2 - 99*b1*b2 - 99*b2**2) + 1001*df
(x1,t,2)**2*df(x1,t)**4*x1**2*x2**10*a1**10*( - 22*a1*ka + 23*a1*kc - b1*ka) + 110*df(x1,t,2)**2*df(x1,t)**4*x1**2*x2**9
*a1**9*ka*vm*(74*a1 - 63*a2 - 12*b1 - 18*b2) + 2093*df(x1,t,2)**2*df(x1,t)**4*x1*x2**11*a1**11*(ka - kc) - 935*df(x1,t,2
)**2*df(x1,t)**4*x1*x2**10*a1**10*ka*vm + 91*df(x1,t,2)**2*df(x1,t)**3*x1**13*a1**11*( - 3*a1*ka + 7*a1*kc - 4*b1*ka) + 
364*df(x1,t,2)**2*df(x1,t)**3*x1**12*x2*a1**11*(10*a1*ka - 21*a1*kc + 11*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**3*x1**12*a1
**9*ka*vm*(20*a1**2 + 140*a1*a2 + 33*a1*b1 + 165*a1*b2 + 1830*a2**2 + 495*a2*b1 - 1485*a2*b2 - 330*b1*b2 - 330*b2**2) + 
2002*df(x1,t,2)**2*df(x1,t)**3*x1**11*x2**2*a1**11*( - 11*a1*ka + 21*a1*kc - 10*b1*ka) + 10*df(x1,t,2)**2*df(x1,t)**3*x1
**11*x2*a1**9*ka*vm*( - 27*a1**2 - 472*a1*a2 - 99*a1*b1 - 385*a1*b2 - 3294*a2**2 - 891*a2*b1 + 2673*a2*b2 + 594*b1*b2 + 
594*b2**2) + 20020*df(x1,t,2)**2*df(x1,t)**3*x1**10*x2**3*a1**11*(4*a1*ka - 7*a1*kc + 3*b1*ka) + 20*df(x1,t,2)**2*df(x1,
t)**3*x1**10*x2**2*a1**9*ka*vm*(10*a1**2 + 1494*a1*a2 + 297*a1*b1 + 990*a1*b2 + 6588*a2**2 + 1782*a2*b1 - 5346*a2*b2 - 
1188*b1*b2 - 1188*b2**2) + 15015*df(x1,t,2)**2*df(x1,t)**3*x1**9*x2**4*a1**11*( - 13*a1*ka + 21*a1*kc - 8*b1*ka) + 30*df
(x1,t,2)**2*df(x1,t)**3*x1**9*x2**3*a1**9*ka*vm*(125*a1**2 - 3424*a1*a2 - 660*a1*b1 - 1980*a1*b2 - 10248*a2**2 - 2772*a2
*b1 + 8316*a2*b2 + 1848*b1*b2 + 1848*b2**2) + 168168*df(x1,t,2)**2*df(x1,t)**3*x1**8*x2**5*a1**11*(2*a1*ka - 3*a1*kc + 
b1*ka) + 60*df(x1,t,2)**2*df(x1,t)**3*x1**8*x2**4*a1**9*ka*vm*( - 300*a1**2 + 3668*a1*a2 + 693*a1*b1 + 1925*a1*b2 + 7686
*a2**2 + 2079*a2*b1 - 6237*a2*b2 - 1386*b1*b2 - 1386*b2**2) + 84084*df(x1,t,2)**2*df(x1,t)**3*x1**7*x2**6*a1**11*( - 5*
a1*ka + 7*a1*kc - 2*b1*ka) + 84*df(x1,t,2)**2*df(x1,t)**3*x1**7*x2**5*a1**9*ka*vm*(505*a1**2 - 3720*a1*a2 - 693*a1*b1 - 
1815*a1*b2 - 5490*a2**2 - 1485*a2*b1 + 4455*a2*b2 + 990*b1*b2 + 990*b2**2) + 24024*df(x1,t,2)**2*df(x1,t)**3*x1**6*x2**7
*a1**11*(16*a1*ka - 21*a1*kc + 5*b1*ka) + 840*df(x1,t,2)**2*df(x1,t)**3*x1**6*x2**6*a1**9*ka*vm*( - 74*a1**2 + 358*a1*a2
 + 66*a1*b1 + 165*a1*b2 + 366*a2**2 + 99*a2*b1 - 297*a2*b2 - 66*b1*b2 - 66*b2**2) + 15015*df(x1,t,2)**2*df(x1,t)**3*x1**
5*x2**8*a1**11*( - 17*a1*ka + 21*a1*kc - 4*b1*ka) + 60*df(x1,t,2)**2*df(x1,t)**3*x1**5*x2**7*a1**9*ka*vm*(1005*a1**2 - 
3248*a1*a2 - 594*a1*b1 - 1430*a1*b2 - 2196*a2**2 - 594*a2*b1 + 1782*a2*b2 + 396*b1*b2 + 396*b2**2) + 20020*df(x1,t,2)**2
*df(x1,t)**3*x1**4*x2**9*a1**11*(6*a1*ka - 7*a1*kc + b1*ka) + 30*df(x1,t,2)**2*df(x1,t)**3*x1**4*x2**8*a1**9*ka*vm*( - 
1300*a1**2 + 2724*a1*a2 + 495*a1*b1 + 1155*a1*b2 + 1098*a2**2 + 297*a2*b1 - 891*a2*b2 - 198*b1*b2 - 198*b2**2) + 2002*df
(x1,t,2)**2*df(x1,t)**3*x1**3*x2**10*a1**11*( - 19*a1*ka + 21*a1*kc - 2*b1*ka) + 10*df(x1,t,2)**2*df(x1,t)**3*x1**3*x2**
9*a1**9*ka*vm*(1625*a1**2 - 2008*a1*a2 - 363*a1*b1 - 825*a1*b2 - 366*a2**2 - 99*a2*b1 + 297*a2*b2 + 66*b1*b2 + 66*b2**2)
 + 364*df(x1,t,2)**2*df(x1,t)**3*x1**2*x2**11*a1**11*(20*a1*ka - 21*a1*kc + b1*ka) + 44*df(x1,t,2)**2*df(x1,t)**3*x1**2*
x2**10*a1**10*ka*vm*( - 90*a1 + 50*a2 + 9*b1 + 20*b2) + 637*df(x1,t,2)**2*df(x1,t)**3*x1*x2**12*a1**12*( - ka + kc) + 
430*df(x1,t,2)**2*df(x1,t)**3*x1*x2**11*a1**11*ka*vm + 7*df(x1,t,2)**2*df(x1,t)**2*x1**14*a1**12*( - 6*a1*ka + 19*a1*kc 
- 13*b1*ka) + 91*df(x1,t,2)**2*df(x1,t)**2*x1**13*x2*a1**12*(7*a1*ka - 19*a1*kc + 12*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**
2*x1**13*a1**10*ka*vm*(3*a1**2 + 47*a1*a2 + 3*a1*b1 + 700*a2**2 + 165*a2*b1 - 495*a2*b2 - 99*b1*b2 - 99*b2**2) + 546*df(
x1,t,2)**2*df(x1,t)**2*x1**12*x2**2*a1**12*( - 8*a1*ka + 19*a1*kc - 11*b1*ka) + 4*df(x1,t,2)**2*df(x1,t)**2*x1**12*x2*a1
**10*ka*vm*( - 17*a1**2 - 334*a1*a2 - 33*a1*b1 - 66*a1*b2 - 3500*a2**2 - 825*a2*b1 + 2475*a2*b2 + 495*b1*b2 + 495*b2**2)
 + 2002*df(x1,t,2)**2*df(x1,t)**2*x1**11*x2**3*a1**12*(9*a1*ka - 19*a1*kc + 10*b1*ka) + 6*df(x1,t,2)**2*df(x1,t)**2*x1**
11*x2**2*a1**10*ka*vm*(39*a1**2 + 1365*a1*a2 + 165*a1*b1 + 440*a1*b2 + 10500*a2**2 + 2475*a2*b1 - 7425*a2*b2 - 1485*b1*
b2 - 1485*b2**2) + 5005*df(x1,t,2)**2*df(x1,t)**2*x1**10*x2**4*a1**12*( - 10*a1*ka + 19*a1*kc - 9*b1*ka) + 20*df(x1,t,2)
**2*df(x1,t)**2*x1**10*x2**3*a1**10*ka*vm*(4*a1**2 - 1455*a1*a2 - 198*a1*b1 - 594*a1*b2 - 8400*a2**2 - 1980*a2*b1 + 5940
*a2*b2 + 1188*b1*b2 + 1188*b2**2) + 9009*df(x1,t,2)**2*df(x1,t)**2*x1**9*x2**5*a1**12*(11*a1*ka - 19*a1*kc + 8*b1*ka) + 
60*df(x1,t,2)**2*df(x1,t)**2*x1**9*x2**4*a1**10*ka*vm*( - 50*a1**2 + 1121*a1*a2 + 165*a1*b1 + 528*a1*b2 + 4900*a2**2 + 
1155*a2*b1 - 3465*a2*b2 - 693*b1*b2 - 693*b2**2) + 12012*df(x1,t,2)**2*df(x1,t)**2*x1**8*x2**6*a1**12*( - 12*a1*ka + 19*
a1*kc - 7*b1*ka) + 72*df(x1,t,2)**2*df(x1,t)**2*x1**8*x2**5*a1**10*ka*vm*(149*a1**2 - 1484*a1*a2 - 231*a1*b1 - 770*a1*b2
 - 4900*a2**2 - 1155*a2*b1 + 3465*a2*b2 + 693*b1*b2 + 693*b2**2) + 12012*df(x1,t,2)**2*df(x1,t)**2*x1**7*x2**7*a1**12*(
13*a1*ka - 19*a1*kc + 6*b1*ka) + 84*df(x1,t,2)**2*df(x1,t)**2*x1**7*x2**6*a1**10*ka*vm*( - 251*a1**2 + 1423*a1*a2 + 231*
a1*b1 + 792*a1*b2 + 3500*a2**2 + 825*a2*b1 - 2475*a2*b2 - 495*b1*b2 - 495*b2**2) + 9009*df(x1,t,2)**2*df(x1,t)**2*x1**6*
x2**8*a1**12*( - 14*a1*ka + 19*a1*kc - 5*b1*ka) + 24*df(x1,t,2)**2*df(x1,t)**2*x1**6*x2**7*a1**10*ka*vm*(1118*a1**2 - 
3935*a1*a2 - 660*a1*b1 - 2310*a1*b2 - 7000*a2**2 - 1650*a2*b1 + 4950*a2*b2 + 990*b1*b2 + 990*b2**2) + 5005*df(x1,t,2)**2
*df(x1,t)**2*x1**5*x2**9*a1**12*(15*a1*ka - 19*a1*kc + 4*b1*ka) + 90*df(x1,t,2)**2*df(x1,t)**2*x1**5*x2**8*a1**10*ka*vm*
( - 257*a1**2 + 575*a1*a2 + 99*a1*b1 + 352*a1*b2 + 700*a2**2 + 165*a2*b1 - 495*a2*b2 - 99*b1*b2 - 99*b2**2) + 2002*df(x1
,t,2)**2*df(x1,t)**2*x1**4*x2**10*a1**12*( - 16*a1*ka + 19*a1*kc - 3*b1*ka) + 20*df(x1,t,2)**2*df(x1,t)**2*x1**4*x2**9*
a1**10*ka*vm*(675*a1**2 - 938*a1*a2 - 165*a1*b1 - 594*a1*b2 - 700*a2**2 - 165*a2*b1 + 495*a2*b2 + 99*b1*b2 + 99*b2**2) +
 546*df(x1,t,2)**2*df(x1,t)**2*x1**3*x2**11*a1**12*(17*a1*ka - 19*a1*kc + 2*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**2*x1**3*
x2**10*a1**10*ka*vm*( - 2567*a1**2 + 2027*a1*a2 + 363*a1*b1 + 1320*a1*b2 + 700*a2**2 + 165*a2*b1 - 495*a2*b2 - 99*b1*b2 
- 99*b2**2) + 91*df(x1,t,2)**2*df(x1,t)**2*x1**2*x2**12*a1**12*( - 18*a1*ka + 19*a1*kc - b1*ka) + 12*df(x1,t,2)**2*df(x1
,t)**2*x1**2*x2**11*a1**11*ka*vm*(96*a1 - 33*a2 - 6*b1 - 22*b2) + 133*df(x1,t,2)**2*df(x1,t)**2*x1*x2**13*a1**13*(ka - 
kc) - 116*df(x1,t,2)**2*df(x1,t)**2*x1*x2**12*a1**12*ka*vm + df(x1,t,2)**2*df(x1,t)*x1**15*a1**13*( - 3*a1*ka + 17*a1*kc
 - 14*b1*ka) + 14*df(x1,t,2)**2*df(x1,t)*x1**14*x2*a1**13*(4*a1*ka - 17*a1*kc + 13*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)*x1
**14*a1**11*ka*vm*(16*a1*a2 - 9*a1*b2 + 158*a2**2 + 33*a2*b1 - 99*a2*b2 - 18*b1*b2 - 18*b2**2) + 91*df(x1,t,2)**2*df(x1,
t)*x1**13*x2**2*a1**13*( - 5*a1*ka + 17*a1*kc - 12*b1*ka) + df(x1,t,2)**2*df(x1,t)*x1**13*x2*a1**11*ka*vm*( - 3*a1**2 - 
376*a1*a2 - 6*a1*b1 + 150*a1*b2 - 3476*a2**2 - 726*a2*b1 + 2178*a2*b2 + 396*b1*b2 + 396*b2**2) + 364*df(x1,t,2)**2*df(x1
,t)*x1**12*x2**3*a1**13*(6*a1*ka - 17*a1*kc + 11*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)*x1**12*x2**2*a1**11*ka*vm*(8*a1**2 + 
1012*a1*a2 + 33*a1*b1 - 231*a1*b2 + 8690*a2**2 + 1815*a2*b1 - 5445*a2*b2 - 990*b1*b2 - 990*b2**2) + 1001*df(x1,t,2)**2*
df(x1,t)*x1**11*x2**4*a1**13*( - 7*a1*ka + 17*a1*kc - 10*b1*ka) + 22*df(x1,t,2)**2*df(x1,t)*x1**11*x2**3*a1**11*ka*vm*(
a1**2 - 300*a1*a2 - 15*a1*b1 + 15*a1*b2 - 2370*a2**2 - 495*a2*b1 + 1485*a2*b2 + 270*b1*b2 + 270*b2**2) + 2002*df(x1,t,2)
**2*df(x1,t)*x1**10*x2**5*a1**13*(8*a1*ka - 17*a1*kc + 9*b1*ka) + 110*df(x1,t,2)**2*df(x1,t)*x1**10*x2**4*a1**11*ka*vm*(
 - 4*a1**2 + 132*a1*a2 + 9*a1*b1 + 18*a1*b2 + 948*a2**2 + 198*a2*b1 - 594*a2*b2 - 108*b1*b2 - 108*b2**2) + 3003*df(x1,t,
2)**2*df(x1,t)*x1**9*x2**6*a1**13*( - 9*a1*ka + 17*a1*kc - 8*b1*ka) + 33*df(x1,t,2)**2*df(x1,t)*x1**9*x2**5*a1**11*ka*vm
*(55*a1**2 - 688*a1*a2 - 60*a1*b1 - 228*a1*b2 - 4424*a2**2 - 924*a2*b1 + 2772*a2*b2 + 504*b1*b2 + 504*b2**2) + 3432*df(
x1,t,2)**2*df(x1,t)*x1**8*x2**7*a1**13*(10*a1*ka - 17*a1*kc + 7*b1*ka) + 132*df(x1,t,2)**2*df(x1,t)*x1**8*x2**6*a1**11*
ka*vm*( - 32*a1**2 + 196*a1*a2 + 21*a1*b1 + 105*a1*b2 + 1106*a2**2 + 231*a2*b1 - 693*a2*b2 - 126*b1*b2 - 126*b2**2) + 
3003*df(x1,t,2)**2*df(x1,t)*x1**7*x2**8*a1**13*( - 11*a1*ka + 17*a1*kc - 6*b1*ka) + 132*df(x1,t,2)**2*df(x1,t)*x1**7*x2
**7*a1**11*ka*vm*(49*a1**2 - 164*a1*a2 - 21*a1*b1 - 123*a1*b2 - 790*a2**2 - 165*a2*b1 + 495*a2*b2 + 90*b1*b2 + 90*b2**2)
 + 2002*df(x1,t,2)**2*df(x1,t)*x1**6*x2**9*a1**13*(12*a1*ka - 17*a1*kc + 5*b1*ka) + 66*df(x1,t,2)**2*df(x1,t)*x1**6*x2**
8*a1**11*ka*vm*( - 104*a1**2 + 200*a1*a2 + 30*a1*b1 + 195*a1*b2 + 790*a2**2 + 165*a2*b1 - 495*a2*b2 - 90*b1*b2 - 90*b2**
2) + 1001*df(x1,t,2)**2*df(x1,t)*x1**5*x2**10*a1**13*( - 13*a1*ka + 17*a1*kc - 4*b1*ka) + 55*df(x1,t,2)**2*df(x1,t)*x1**
5*x2**9*a1**11*ka*vm*(93*a1**2 - 104*a1*a2 - 18*a1*b1 - 126*a1*b2 - 316*a2**2 - 66*a2*b1 + 198*a2*b2 + 36*b1*b2 + 36*b2
**2) + 364*df(x1,t,2)**2*df(x1,t)*x1**4*x2**11*a1**13*(14*a1*ka - 17*a1*kc + 3*b1*ka) + 22*df(x1,t,2)**2*df(x1,t)*x1**4*
x2**10*a1**11*ka*vm*( - 120*a1**2 + 76*a1*a2 + 15*a1*b1 + 111*a1*b2 + 158*a2**2 + 33*a2*b1 - 99*a2*b2 - 18*b1*b2 - 18*b2
**2) + 91*df(x1,t,2)**2*df(x1,t)*x1**3*x2**12*a1**13*( - 15*a1*ka + 17*a1*kc - 2*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)*x1**3
*x2**11*a1**11*ka*vm*(451*a1**2 - 148*a1*a2 - 33*a1*b1 - 255*a1*b2 - 158*a2**2 - 33*a2*b1 + 99*a2*b2 + 18*b1*b2 + 18*b2
**2) + 14*df(x1,t,2)**2*df(x1,t)*x1**2*x2**13*a1**13*(16*a1*ka - 17*a1*kc + b1*ka) + 2*df(x1,t,2)**2*df(x1,t)*x1**2*x2**
12*a1**12*ka*vm*( - 92*a1 + 12*a2 + 3*b1 + 24*b2) + 17*df(x1,t,2)**2*df(x1,t)*x1*x2**14*a1**14*( - ka + kc) + 17*df(x1,t
,2)**2*df(x1,t)*x1*x2**13*a1**13*ka*vm + df(x1,t,2)**2*x1**16*a1**14*(a1*kc - b1*ka) + df(x1,t,2)**2*x1**15*x2*a1**14*(
a1*ka - 15*a1*kc + 14*b1*ka) + df(x1,t,2)**2*x1**15*a1**12*ka*vm*(5*a1*a2 - 3*a1*b2 + 32*a2**2 + 6*a2*b1 - 18*a2*b2 - 3*
b1*b2 - 3*b2**2) + 7*df(x1,t,2)**2*x1**14*x2**2*a1**14*( - 2*a1*ka + 15*a1*kc - 13*b1*ka) + 2*df(x1,t,2)**2*x1**14*x2*a1
**12*ka*vm*( - 29*a1*a2 + 16*a1*b2 - 192*a2**2 - 36*a2*b1 + 108*a2*b2 + 18*b1*b2 + 18*b2**2) + 91*df(x1,t,2)**2*x1**13*
x2**3*a1**14*(a1*ka - 5*a1*kc + 4*b1*ka) + df(x1,t,2)**2*x1**13*x2**2*a1**12*ka*vm*( - a1**2 + 306*a1*a2 - 150*a1*b2 + 
2112*a2**2 + 396*a2*b1 - 1188*a2*b2 - 198*b1*b2 - 198*b2**2) + 91*df(x1,t,2)**2*x1**12*x2**4*a1**14*( - 4*a1*ka + 15*a1*
kc - 11*b1*ka) + 4*df(x1,t,2)**2*x1**12*x2**3*a1**12*ka*vm*(3*a1**2 - 242*a1*a2 + 99*a1*b2 - 1760*a2**2 - 330*a2*b1 + 
990*a2*b2 + 165*b1*b2 + 165*b2**2) + 1001*df(x1,t,2)**2*x1**11*x2**5*a1**14*(a1*ka - 3*a1*kc + 2*b1*ka) + 11*df(x1,t,2)
**2*x1**11*x2**4*a1**12*ka*vm*( - 6*a1**2 + 185*a1*a2 - 55*a1*b2 + 1440*a2**2 + 270*a2*b1 - 810*a2*b2 - 135*b1*b2 - 135*
b2**2) + 1001*df(x1,t,2)**2*x1**10*x2**6*a1**14*( - 2*a1*ka + 5*a1*kc - 3*b1*ka) + 22*df(x1,t,2)**2*x1**10*x2**5*a1**12*
ka*vm*(10*a1**2 - 135*a1*a2 + 18*a1*b2 - 1152*a2**2 - 216*a2*b1 + 648*a2*b2 + 108*b1*b2 + 108*b2**2) + 429*df(x1,t,2)**2
*x1**9*x2**7*a1**14*(7*a1*ka - 15*a1*kc + 8*b1*ka) + 33*df(x1,t,2)**2*x1**9*x2**6*a1**12*ka*vm*( - 15*a1**2 + 92*a1*a2 +
 12*a1*b2 + 896*a2**2 + 168*a2*b1 - 504*a2*b2 - 84*b1*b2 - 84*b2**2) + 429*df(x1,t,2)**2*x1**8*x2**8*a1**14*( - 8*a1*ka 
+ 15*a1*kc - 7*b1*ka) + 264*df(x1,t,2)**2*x1**8*x2**7*a1**12*ka*vm*(3*a1**2 - 8*a1*a2 - 5*a1*b2 - 96*a2**2 - 18*a2*b1 + 
54*a2*b2 + 9*b1*b2 + 9*b2**2) + 1001*df(x1,t,2)**2*x1**7*x2**9*a1**14*(3*a1*ka - 5*a1*kc + 2*b1*ka) + 33*df(x1,t,2)**2*
x1**7*x2**8*a1**12*ka*vm*( - 28*a1**2 + 27*a1*a2 + 51*a1*b2 + 480*a2**2 + 90*a2*b1 - 270*a2*b2 - 45*b1*b2 - 45*b2**2) + 
1001*df(x1,t,2)**2*x1**6*x2**10*a1**14*( - 2*a1*ka + 3*a1*kc - b1*ka) + 22*df(x1,t,2)**2*x1**6*x2**9*a1**12*ka*vm*(36*a1
**2 - 5*a1*a2 - 60*a1*b2 - 320*a2**2 - 60*a2*b1 + 180*a2*b2 + 30*b1*b2 + 30*b2**2) + 91*df(x1,t,2)**2*x1**5*x2**11*a1**
14*(11*a1*ka - 15*a1*kc + 4*b1*ka) + 11*df(x1,t,2)**2*x1**5*x2**10*a1**12*ka*vm*( - 45*a1**2 - 10*a1*a2 + 62*a1*b2 + 192
*a2**2 + 36*a2*b1 - 108*a2*b2 - 18*b1*b2 - 18*b2**2) + 91*df(x1,t,2)**2*x1**4*x2**12*a1**14*( - 4*a1*ka + 5*a1*kc - b1*
ka) + 4*df(x1,t,2)**2*x1**4*x2**11*a1**12*ka*vm*(55*a1**2 + 18*a1*a2 - 57*a1*b2 - 96*a2**2 - 18*a2*b1 + 54*a2*b2 + 9*b1*
b2 + 9*b2**2) + 7*df(x1,t,2)**2*x1**3*x2**13*a1**14*(13*a1*ka - 15*a1*kc + 2*b1*ka) + df(x1,t,2)**2*x1**3*x2**12*a1**12*
ka*vm*( - 66*a1**2 - 19*a1*a2 + 45*a1*b2 + 32*a2**2 + 6*a2*b1 - 18*a2*b2 - 3*b1*b2 - 3*b2**2) + df(x1,t,2)**2*x1**2*x2**
14*a1**14*( - 14*a1*ka + 15*a1*kc - b1*ka) + 2*df(x1,t,2)**2*x1**2*x2**13*a1**13*ka*vm*(6*a1 + a2 - 2*b2) + df(x1,t,2)**
2*x1*x2**15*a1**15*(ka - kc) - df(x1,t,2)**2*x1*x2**14*a1**14*ka*vm + 2*df(x1,t,2)*df(x1,t)**17*(ka - kc) + df(x1,t,2)*
df(x1,t)**16*x1*(28*a1*ka - 26*a1*kc - 2*b1*ka - 3*b2*ka + 3*b2*kc) + 30*df(x1,t,2)*df(x1,t)**16*x2*a1*( - ka + kc) - 2*
df(x1,t,2)*df(x1,t)**16*ka*vm + df(x1,t,2)*df(x1,t)**15*x1**2*a1*(182*a1*ka - 154*a1*kc + a2*ka - 5*a2*kc - 28*b1*ka - 
42*b2*ka + 46*b2*kc) + df(x1,t,2)*df(x1,t)**15*x1*x2*a1*( - 392*a1*ka + 364*a1*kc - 2*a2*ka + 5*a2*kc + 28*b1*ka + 43*b2
*ka - 46*b2*kc) + df(x1,t,2)*df(x1,t)**15*x1*vm*( - 4*a1*ka - 6*b1*ka - 5*b2*ka + 3*b2*kc) + 210*df(x1,t,2)*df(x1,t)**15
*x2**2*a1**2*(ka - kc) + 24*df(x1,t,2)*df(x1,t)**15*x2*a1*ka*vm + df(x1,t,2)*df(x1,t)**14*x1**3*a1*(728*a1**2*ka - 546*
a1**2*kc + 14*a1*a2*ka - 71*a1*a2*kc - 182*a1*b1*ka - 273*a1*b2*ka + 330*a1*b2*kc + a2**2*ka + a2*b1*ka - b1*b2*ka - b2
**2*ka) + df(x1,t,2)*df(x1,t)**14*x1**2*x2*a1*( - 2366*a1**2*ka + 2002*a1**2*kc - 42*a1*a2*ka + 142*a1*a2*kc + 364*a1*b1
*ka + 560*a1*b2*ka - 660*a1*b2*kc - a2**2*ka - a2*b1*ka + b1*b2*ka + b2**2*ka) + df(x1,t,2)*df(x1,t)**14*x1**2*vm*(64*a1
**2*ka - 35*a1*a2*ka - 66*a1*b1*ka - 66*a1*b2*ka + 42*a1*b2*kc + 3*b1*b2*ka + 3*b2**2*ka - b2**2*kc) + df(x1,t,2)*df(x1,
t)**14*x1*x2**2*a1**2*(2548*a1*ka - 2366*a1*kc + 28*a2*ka - 71*a2*kc - 182*b1*ka - 287*b2*ka + 330*b2*kc) + df(x1,t,2)*
df(x1,t)**14*x1*x2*a1*vm*(28*a1*ka + 25*a2*ka + 78*b1*ka + 66*b2*ka - 43*b2*kc) + 910*df(x1,t,2)*df(x1,t)**14*x2**3*a1**
3*( - ka + kc) - 130*df(x1,t,2)*df(x1,t)**14*x2**2*a1**2*ka*vm + 7*df(x1,t,2)*df(x1,t)**13*x1**4*a1**2*(286*a1**2*ka - 
182*a1**2*kc + 13*a1*a2*ka - 67*a1*a2*kc - 104*a1*b1*ka - 156*a1*b2*ka + 210*a1*b2*kc + 2*a2**2*ka + 2*a2*b1*ka - 2*b1*
b2*ka - 2*b2**2*ka) + 7*df(x1,t,2)*df(x1,t)**13*x1**3*x2*a1**2*( - 1248*a1**2*ka + 936*a1**2*kc - 52*a1*a2*ka + 201*a1*
a2*kc + 312*a1*b1*ka + 481*a1*b2*ka - 630*a1*b2*kc - 4*a2**2*ka - 4*a2*b1*ka + 4*b1*b2*ka + 4*b2**2*ka) + df(x1,t,2)*df(
x1,t)**13*x1**3*a1*vm*(420*a1**2*ka - 324*a1*a2*ka - 330*a1*b1*ka - 384*a1*b2*ka + 273*a1*b2*kc + 12*a2**2*ka - 12*a2*b1
*ka + 10*a2*b2*ka + 33*b1*b2*ka + 33*b2**2*ka - 14*b2**2*kc) + 7*df(x1,t,2)*df(x1,t)**13*x1**2*x2**2*a1**2*(2028*a1**2*
ka - 1716*a1**2*kc + 65*a1*a2*ka - 201*a1*a2*kc - 312*a1*b1*ka - 494*a1*b2*ka + 630*a1*b2*kc + 2*a2**2*ka + 2*a2*b1*ka -
 2*b1*b2*ka - 2*b2**2*ka) + df(x1,t,2)*df(x1,t)**13*x1**2*x2*a1*vm*( - 792*a1**2*ka + 630*a1*a2*ka + 792*a1*b1*ka + 798*
a1*b2*ka - 560*a1*b2*kc - 11*a2**2*ka + 12*a2*b1*ka - 4*a2*b2*ka - 38*b1*b2*ka - 38*b2**2*ka + 14*b2**2*kc) + 7*df(x1,t,
2)*df(x1,t)**13*x1*x2**3*a1**3*( - 1456*a1*ka + 1352*a1*kc - 26*a2*ka + 67*a2*kc + 104*b1*ka + 169*b2*ka - 210*b2*kc) + 
df(x1,t,2)*df(x1,t)**13*x1*x2**2*a1**2*vm*( - 24*a1*ka - 297*a2*ka - 468*b1*ka - 403*b2*ka + 287*b2*kc) + 2730*df(x1,t,2
)*df(x1,t)**13*x2**4*a1**4*(ka - kc) + 416*df(x1,t,2)*df(x1,t)**13*x2**3*a1**3*ka*vm + 91*df(x1,t,2)*df(x1,t)**12*x1**5*
a1**3*(44*a1**2*ka - 22*a1**2*kc + 4*a1*a2*ka - 21*a1*a2*kc - 22*a1*b1*ka - 33*a1*b2*ka + 50*a1*b2*kc + a2**2*ka + a2*b1
*ka - b1*b2*ka - b2**2*ka) + 91*df(x1,t,2)*df(x1,t)**12*x1**4*x2*a1**3*( - 242*a1**2*ka + 154*a1**2*kc - 20*a1*a2*ka + 
84*a1*a2*kc + 88*a1*b1*ka + 136*a1*b2*ka - 200*a1*b2*kc - 3*a2**2*ka - 3*a2*b1*ka + 3*b1*b2*ka + 3*b2**2*ka) + df(x1,t,2
)*df(x1,t)**12*x1**4*a1*vm*(1230*a1**3*ka - 1326*a1**2*a2*ka - 990*a1**2*b1*ka - 1298*a1**2*b2*ka + 1092*a1**2*b2*kc + 
82*a1*a2**2*ka - 132*a1*a2*b1*ka + 86*a1*a2*b2*ka + 162*a1*b1*b2*ka + 162*a1*b2**2*ka - 91*a1*b2**2*kc - a2**3*ka - 7*a2
**2*b2*ka + 6*a2*b1*b2*ka + 6*a2*b2**2*ka) + 273*df(x1,t,2)*df(x1,t)**12*x1**3*x2**2*a1**3*(176*a1**2*ka - 132*a1**2*kc 
+ 12*a1*a2*ka - 42*a1*a2*kc - 44*a1*b1*ka - 70*a1*b2*ka + 100*a1*b2*kc + a2**2*ka + a2*b1*ka - b1*b2*ka - b2**2*ka) + df
(x1,t,2)*df(x1,t)**12*x1**3*x2*a1*vm*( - 4420*a1**3*ka + 4302*a1**2*a2*ka + 3630*a1**2*b1*ka + 4218*a1**2*b2*ka - 3367*
a1**2*b2*kc - 169*a1*a2**2*ka + 276*a1*a2*b1*ka - 130*a1*a2*b2*ka - 383*a1*b1*b2*ka - 383*a1*b2**2*ka + 182*a1*b2**2*kc 
+ a2**3*ka + 7*a2**2*b2*ka - 6*a2*b1*b2*ka - 6*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)**12*x1**2*x2**3*a1**3*( - 572*a1**2
*ka + 484*a1**2*kc - 28*a1*a2*ka + 84*a1*a2*kc + 88*a1*b1*ka + 144*a1*b2*ka - 200*a1*b2*kc - a2**2*ka - a2*b1*ka + b1*b2
*ka + b2**2*ka) + df(x1,t,2)*df(x1,t)**12*x1**2*x2**2*a1**2*vm*(4488*a1**2*ka - 4590*a1*a2*ka - 4356*a1*b1*ka - 4428*a1*
b2*ka + 3458*a1*b2*kc + 87*a2**2*ka - 144*a2*b1*ka + 44*a2*b2*ka + 221*b1*b2*ka + 221*b2**2*ka - 91*b2**2*kc) + 91*df(x1
,t,2)*df(x1,t)**12*x1*x2**4*a1**4*(308*a1*ka - 286*a1*kc + 8*a2*ka - 21*a2*kc - 22*b1*ka - 37*b2*ka + 50*b2*kc) + df(x1,
t,2)*df(x1,t)**12*x1*x2**3*a1**3*vm*( - 440*a1*ka + 1614*a2*ka + 1716*b1*ka + 1508*b2*ka - 1183*b2*kc) + 6006*df(x1,t,2)
*df(x1,t)**12*x2**5*a1**5*( - ka + kc) - 858*df(x1,t,2)*df(x1,t)**12*x2**4*a1**4*ka*vm + 91*df(x1,t,2)*df(x1,t)**11*x1**
6*a1**4*(66*a1**2*ka - 22*a1**2*kc + 11*a1*a2*ka - 59*a1*a2*kc - 44*a1*b1*ka - 66*a1*b2*ka + 114*a1*b2*kc + 4*a2**2*ka +
 4*a2*b1*ka - 4*b1*b2*ka - 4*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)**11*x1**5*x2*a1**4*( - 440*a1**2*ka + 220*a1**2*kc - 66*
a1*a2*ka + 295*a1*a2*kc + 220*a1*b1*ka + 341*a1*b2*ka - 570*a1*b2*kc - 16*a2**2*ka - 16*a2*b1*ka + 16*b1*b2*ka + 16*b2**
2*ka) + df(x1,t,2)*df(x1,t)**11*x1**5*a1**2*vm*(2136*a1**3*ka - 3140*a1**2*a2*ka - 1980*a1**2*b1*ka - 2805*a1**2*b2*ka +
 3003*a1**2*b2*kc + 180*a1*a2**2*ka - 660*a1*a2*b1*ka + 288*a1*a2*b2*ka + 462*a1*b1*b2*ka + 462*a1*b2**2*ka - 364*a1*b2
**2*kc - 4*a2**3*ka - 6*a2**2*b1*ka - 66*a2**2*b2*ka + 72*a2*b1*b2*ka + 72*a2*b2**2*ka) + 182*df(x1,t,2)*df(x1,t)**11*x1
**4*x2**2*a1**4*(605*a1**2*ka - 385*a1**2*kc + 77*a1*a2*ka - 295*a1*a2*kc - 220*a1*b1*ka - 352*a1*b2*ka + 570*a1*b2*kc +
 12*a2**2*ka + 12*a2*b1*ka - 12*b1*b2*ka - 12*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**11*x1**4*x2*a1**2*vm*( - 5700*a1**3*ka 
+ 7298*a1**2*a2*ka + 4950*a1**2*b1*ka + 6402*a1**2*b2*ka - 6188*a1**2*b2*kc - 297*a1*a2**2*ka + 1056*a1*a2*b1*ka - 396*
a1*a2*b2*ka - 852*a1*b1*b2*ka - 852*a1*b2**2*ka + 546*a1*b2**2*kc + 4*a2**3*ka + 6*a2**2*b1*ka + 66*a2**2*b2*ka - 72*a2*
b1*b2*ka - 72*a2*b2**2*ka) + 182*df(x1,t,2)*df(x1,t)**11*x1**3*x2**3*a1**4*( - 880*a1**2*ka + 660*a1**2*kc - 88*a1*a2*ka
 + 295*a1*a2*kc + 220*a1*b1*ka + 363*a1*b2*ka - 570*a1*b2*kc - 8*a2**2*ka - 8*a2*b1*ka + 8*b1*b2*ka + 8*b2**2*ka) + 2*df
(x1,t,2)*df(x1,t)**11*x1**3*x2**2*a1**2*vm*(10550*a1**3*ka - 12537*a1**2*a2*ka - 9075*a1**2*b1*ka - 10527*a1**2*b2*ka + 
9555*a1**2*b2*kc + 324*a1*a2**2*ka - 1122*a1*a2*b1*ka + 360*a1*a2*b2*ka + 1011*a1*b1*b2*ka + 1011*a1*b2**2*ka - 546*a1*
b2**2*kc - 2*a2**3*ka - 3*a2**2*b1*ka - 33*a2**2*b2*ka + 36*a2*b1*b2*ka + 36*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)**11*
x1**2*x2**4*a1**4*(1430*a1**2*ka - 1210*a1**2*kc + 99*a1*a2*ka - 295*a1*a2*kc - 220*a1*b1*ka - 374*a1*b2*ka + 570*a1*b2*
kc + 4*a2**2*ka + 4*a2*b1*ka - 4*b1*b2*ka - 4*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**11*x1**2*x2**3*a1**3*vm*( - 7700*a1**2*
ka + 9460*a1*a2*ka + 7260*a1*b1*ka + 7458*a1*b2*ka - 6552*a1*b2*kc - 117*a2**2*ka + 396*a2*b1*ka - 108*a2*b2*ka - 390*b1
*b2*ka - 390*b2**2*ka + 182*b2**2*kc) + 91*df(x1,t,2)*df(x1,t)**11*x1*x2**5*a1**5*( - 616*a1*ka + 572*a1*kc - 22*a2*ka +
 59*a2*kc + 44*b1*ka + 77*b2*ka - 114*b2*kc) + df(x1,t,2)*df(x1,t)**11*x1*x2**4*a1**4*vm*(2420*a1*ka - 5302*a2*ka - 4290
*b1*ka - 3861*b2*ka + 3367*b2*kc) + 10010*df(x1,t,2)*df(x1,t)**11*x2**6*a1**6*(ka - kc) + 1144*df(x1,t,2)*df(x1,t)**11*
x2**5*a1**5*ka*vm + 143*df(x1,t,2)*df(x1,t)**10*x1**7*a1**5*(48*a1**2*ka - 6*a1**2*kc + 14*a1*a2*ka - 77*a1*a2*kc - 42*
a1*b1*ka - 63*a1*b2*ka + 126*a1*b2*kc + 7*a2**2*ka + 7*a2*b1*ka - 7*b1*b2*ka - 7*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)**
10*x1**6*x2*a1**5*( - 54*a1**2*ka + 18*a1**2*kc - 14*a1*a2*ka + 66*a1*a2*kc + 36*a1*b1*ka + 56*a1*b2*ka - 108*a1*b2*kc -
 5*a2**2*ka - 5*a2*b1*ka + 5*b1*b2*ka + 5*b2**2*ka) + df(x1,t,2)*df(x1,t)**10*x1**6*a1**3*vm*(2352*a1**3*ka - 4725*a1**2
*a2*ka - 2772*a1**2*b1*ka - 3960*a1**2*b2*ka + 6006*a1**2*b2*kc - 72*a1*a2**2*ka - 1980*a1*a2*b1*ka + 352*a1*a2*b2*ka + 
825*a1*b1*b2*ka + 825*a1*b2**2*ka - 1001*a1*b2**2*kc - 2*a2**3*ka - 66*a2**2*b1*ka - 264*a2**2*b2*ka + 396*a2*b1*b2*ka +
 396*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)**10*x1**5*x2**2*a1**5*(36*a1**2*ka - 18*a1**2*kc + 8*a1*a2*ka - 33*a1*a2*kc
 - 18*a1*b1*ka - 29*a1*b2*ka + 54*a1*b2*kc + 2*a2**2*ka + 2*a2*b1*ka - 2*b1*b2*ka - 2*b2**2*ka) + df(x1,t,2)*df(x1,t)**
10*x1**5*x2*a1**3*vm*( - 17352*a1**3*ka + 29355*a1**2*a2*ka + 17820*a1**2*b1*ka + 24420*a1**2*b2*ka - 31031*a1**2*b2*kc 
+ 238*a1*a2**2*ka + 8580*a1*a2*b1*ka - 1672*a1*a2*b2*ka - 4334*a1*b1*b2*ka - 4334*a1*b2**2*ka + 4004*a1*b2**2*kc + 6*a2
**3*ka + 198*a2**2*b1*ka + 792*a2**2*b2*ka - 1188*a2*b1*b2*ka - 1188*a2*b2**2*ka) + 10010*df(x1,t,2)*df(x1,t)**10*x1**4*
x2**3*a1**5*( - 33*a1**2*ka + 21*a1**2*kc - 6*a1*a2*ka + 22*a1*a2*kc + 12*a1*b1*ka + 20*a1*b2*ka - 36*a1*b2*kc - a2**2*
ka - a2*b1*ka + b1*b2*ka + b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**10*x1**4*x2**2*a1**3*vm*(23625*a1**3*ka - 35715*a1**2*a2*
ka - 22275*a1**2*b1*ka - 28325*a1**2*b2*ka + 32032*a1**2*b2*kc - 141*a1*a2**2*ka - 6930*a1*a2*b1*ka + 1452*a1*a2*b2*ka +
 4026*a1*b1*b2*ka + 4026*a1*b2**2*ka - 3003*a1*b2**2*kc - 3*a2**3*ka - 99*a2**2*b1*ka - 396*a2**2*b2*ka + 594*a2*b1*b2*
ka + 594*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)**10*x1**3*x2**4*a1**5*(72*a1**2*ka - 54*a1**2*kc + 10*a1*a2*ka - 33*a1*
a2*kc - 18*a1*b1*ka - 31*a1*b2*ka + 54*a1*b2*kc + a2**2*ka + a2*b1*ka - b1*b2*ka - b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**10
*x1**3*x2**3*a1**3*vm*( - 30150*a1**3*ka + 42705*a1**2*a2*ka + 27225*a1**2*b1*ka + 31515*a1**2*b2*ka - 33033*a1**2*b2*kc
 + 69*a1*a2**2*ka + 4950*a1*a2*b1*ka - 1100*a1*a2*b2*ka - 3201*a1*b1*b2*ka - 3201*a1*b2**2*ka + 2002*a1*b2**2*kc + a2**3
*ka + 33*a2**2*b1*ka + 132*a2**2*b2*ka - 198*a2*b1*b2*ka - 198*a2*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)**10*x1**2*x2**5*
a1**5*( - 234*a1**2*ka + 198*a1**2*kc - 22*a1*a2*ka + 66*a1*a2*kc + 36*a1*b1*ka + 64*a1*b2*ka - 108*a1*b2*kc - a2**2*ka 
- a2*b1*ka + b1*b2*ka + b2**2*ka) + 11*df(x1,t,2)*df(x1,t)**10*x1**2*x2**4*a1**4*vm*(3240*a1**2*ka - 4575*a1*a2*ka - 
2970*a1*b1*ka - 3090*a1*b2*ka + 3094*a1*b2*kc - 2*a2**2*ka - 240*a2*b1*ka + 56*a2*b2*ka + 169*b1*b2*ka + 169*b2**2*ka - 
91*b2**2*kc) + 1001*df(x1,t,2)*df(x1,t)**10*x1*x2**6*a1**6*(84*a1*ka - 78*a1*kc + 4*a2*ka - 11*a2*kc - 6*b1*ka - 11*b2*
ka + 18*b2*kc) + 11*df(x1,t,2)*df(x1,t)**10*x1*x2**5*a1**5*vm*( - 612*a1*ka + 1065*a2*ka + 702*b1*ka + 650*b2*ka - 637*
b2*kc) + 12870*df(x1,t,2)*df(x1,t)**10*x2**7*a1**7*( - ka + kc) - 858*df(x1,t,2)*df(x1,t)**10*x2**6*a1**6*ka*vm + 143*df
(x1,t,2)*df(x1,t)**9*x1**8*a1**6*(42*a1**2*ka + 6*a1**2*kc + 21*a1*a2*ka - 119*a1*a2*kc - 48*a1*b1*ka - 72*a1*b2*ka + 
170*a1*b2*kc + 14*a2**2*ka + 14*a2*b1*ka - 14*b1*b2*ka - 14*b2**2*ka) + 143*df(x1,t,2)*df(x1,t)**9*x1**7*x2*a1**6*( - 
384*a1**2*ka + 48*a1**2*kc - 168*a1*a2*ka + 833*a1*a2*kc + 336*a1*b1*ka + 525*a1*b2*ka - 1190*a1*b2*kc - 84*a2**2*ka - 
84*a2*b1*ka + 84*b1*b2*ka + 84*b2**2*ka) + df(x1,t,2)*df(x1,t)**9*x1**7*a1**4*vm*(1608*a1**3*ka - 4680*a1**2*a2*ka - 
2772*a1**2*b1*ka - 3432*a1**2*b2*ka + 9009*a1**2*b2*kc - 1160*a1*a2**2*ka - 3960*a1*a2*b1*ka - 550*a1*a2*b2*ka + 891*a1*
b1*b2*ka + 891*a1*b2**2*ka - 2002*a1*b2**2*kc - 20*a2**3*ka - 330*a2**2*b1*ka - 550*a2**2*b2*ka + 1320*a2*b1*b2*ka + 
1320*a2*b2**2*ka) + 3003*df(x1,t,2)*df(x1,t)**9*x1**6*x2**2*a1**6*(72*a1**2*ka - 24*a1**2*kc + 27*a1*a2*ka - 119*a1*a2*
kc - 48*a1*b1*ka - 78*a1*b2*ka + 170*a1*b2*kc + 10*a2**2*ka + 10*a2*b1*ka - 10*b1*b2*ka - 10*b2**2*ka) + df(x1,t,2)*df(
x1,t)**9*x1**6*x2*a1**4*vm*( - 16464*a1**3*ka + 37530*a1**2*a2*ka + 22176*a1**2*b1*ka + 29502*a1**2*b2*ka - 56056*a1**2*
b2*kc + 6455*a1*a2**2*ka + 21780*a1*a2*b1*ka + 1100*a1*a2*b2*ka - 6710*a1*b1*b2*ka - 6710*a1*b2**2*ka + 10010*a1*b2**2*
kc + 80*a2**3*ka + 1320*a2**2*b1*ka + 2200*a2**2*b2*ka - 5280*a2*b1*b2*ka - 5280*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)
**9*x1**5*x2**3*a1**6*( - 96*a1**2*ka + 48*a1**2*kc - 30*a1*a2*ka + 119*a1*a2*kc + 48*a1*b1*ka + 81*a1*b2*ka - 170*a1*b2
*kc - 8*a2**2*ka - 8*a2*b1*ka + 8*b1*b2*ka + 8*b2**2*ka) + 5*df(x1,t,2)*df(x1,t)**9*x1**5*x2**2*a1**4*vm*(12384*a1**3*ka
 - 24327*a1**2*a2*ka - 14256*a1**2*b1*ka - 18711*a1**2*b2*ka + 29029*a1**2*b2*kc - 2844*a1*a2**2*ka - 9504*a1*a2*b1*ka +
 220*a1*a2*b2*ka + 3586*a1*b1*b2*ka + 3586*a1*b2**2*ka - 4004*a1*b2**2*kc - 24*a2**3*ka - 396*a2**2*b1*ka - 660*a2**2*b2
*ka + 1584*a2*b1*b2*ka + 1584*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)**9*x1**4*x2**4*a1**6*(132*a1**2*ka - 84*a1**2*kc +
 33*a1*a2*ka - 119*a1*a2*kc - 48*a1*b1*ka - 84*a1*b2*ka + 170*a1*b2*kc + 6*a2**2*ka + 6*a2*b1*ka - 6*b1*b2*ka - 6*b2**2*
ka) + 10*df(x1,t,2)*df(x1,t)**9*x1**4*x2**3*a1**4*vm*( - 11520*a1**3*ka + 20484*a1**2*a2*ka + 11880*a1**2*b1*ka + 14784*
a1**2*b2*ka - 20020*a1**2*b2*kc + 1553*a1*a2**2*ka + 5148*a1*a2*b1*ka - 440*a1*a2*b2*ka - 2244*a1*b1*b2*ka - 2244*a1*b2
**2*ka + 2002*a1*b2**2*kc + 8*a2**3*ka + 132*a2**2*b1*ka + 220*a2**2*b2*ka - 528*a2*b1*b2*ka - 528*a2*b2**2*ka) + 3003*
df(x1,t,2)*df(x1,t)**9*x1**3*x2**5*a1**6*( - 192*a1**2*ka + 144*a1**2*kc - 36*a1*a2*ka + 119*a1*a2*kc + 48*a1*b1*ka + 87
*a1*b2*ka - 170*a1*b2*kc - 4*a2**2*ka - 4*a2*b1*ka + 4*b1*b2*ka + 4*b2**2*ka) + 5*df(x1,t,2)*df(x1,t)**9*x1**3*x2**4*a1
**4*vm*(22920*a1**3*ka - 37962*a1**2*a2*ka - 21780*a1**2*b1*ka - 25146*a1**2*b2*ka + 31031*a1**2*b2*kc - 1684*a1*a2**2*
ka - 5544*a1*a2*b1*ka + 770*a1*a2*b2*ka + 2695*a1*b1*b2*ka + 2695*a1*b2**2*ka - 2002*a1*b2**2*kc - 4*a2**3*ka - 66*a2**2
*b1*ka - 110*a2**2*b2*ka + 264*a2*b1*b2*ka + 264*a2*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)**9*x1**2*x2**6*a1**6*(312*a1**2
*ka - 264*a1**2*kc + 39*a1*a2*ka - 119*a1*a2*kc - 48*a1*b1*ka - 90*a1*b2*ka + 170*a1*b2*kc + 2*a2**2*ka + 2*a2*b1*ka - 2
*b1*b2*ka - 2*b2**2*ka) + 11*df(x1,t,2)*df(x1,t)**9*x1**2*x2**5*a1**5*vm*( - 5328*a1**2*ka + 8370*a1*a2*ka + 4752*a1*b1*
ka + 5022*a1*b2*ka - 5824*a1*b2*kc + 165*a2**2*ka + 540*a2*b1*ka - 100*a2*b2*ka - 286*b1*b2*ka - 286*b2**2*ka + 182*b2**
2*kc) + 143*df(x1,t,2)*df(x1,t)**9*x1*x2**7*a1**7*( - 672*a1*ka + 624*a1*kc - 42*a2*ka + 119*a2*kc + 48*b1*ka + 93*b2*ka
 - 170*b2*kc) + 11*df(x1,t,2)*df(x1,t)**9*x1*x2**6*a1**6*vm*(1104*a1*ka - 1665*a2*ka - 936*b1*ka - 897*b2*ka + 1001*b2*
kc) + 12870*df(x1,t,2)*df(x1,t)**9*x2**8*a1**8*(ka - kc) + 143*df(x1,t,2)*df(x1,t)**8*x1**9*a1**7*(28*a1**2*ka + 14*a1**
2*kc + 24*a1*a2*ka - 141*a1*a2*kc - 42*a1*b1*ka - 63*a1*b2*ka + 180*a1*b2*kc + 21*a2**2*ka + 21*a2*b1*ka - 21*b1*b2*ka -
 21*b2**2*ka) + 429*df(x1,t,2)*df(x1,t)**8*x1**8*x2*a1**7*( - 98*a1**2*ka - 14*a1**2*kc - 72*a1*a2*ka + 376*a1*a2*kc + 
112*a1*b1*ka + 176*a1*b2*ka - 480*a1*b2*kc - 49*a2**2*ka - 49*a2*b1*ka + 49*b1*b2*ka + 49*b2**2*ka) + 3*df(x1,t,2)*df(x1
,t)**8*x1**8*a1**5*vm*(190*a1**3*ka - 1036*a1**2*a2*ka - 660*a1**2*b1*ka - 396*a1**2*b2*ka + 3432*a1**2*b2*kc - 882*a1*
a2**2*ka - 1848*a1*a2*b1*ka - 990*a1*a2*b2*ka + 132*a1*b1*b2*ka + 132*a1*b2**2*ka - 1001*a1*b2**2*kc - 85*a2**3*ka - 330
*a2**2*b1*ka - 165*a2**2*b2*ka + 990*a2*b1*b2*ka + 990*a2*b2**2*ka) + 3003*df(x1,t,2)*df(x1,t)**8*x1**7*x2**2*a1**7*(64*
a1**2*ka - 8*a1**2*kc + 40*a1*a2*ka - 188*a1*a2*kc - 56*a1*b1*ka - 92*a1*b2*ka + 240*a1*b2*kc + 21*a2**2*ka + 21*a2*b1*
ka - 21*b1*b2*ka - 21*b2**2*ka) + 3*df(x1,t,2)*df(x1,t)**8*x1**7*x2*a1**5*vm*( - 3128*a1**3*ka + 10460*a1**2*a2*ka + 
6468*a1**2*b1*ka + 6732*a1**2*b2*ka - 25025*a1**2*b2*kc + 6291*a1*a2**2*ka + 12408*a1*a2*b1*ka + 4554*a1*a2*b2*ka - 1947
*a1*b1*b2*ka - 1947*a1*b2**2*ka + 6006*a1*b2**2*kc + 425*a2**3*ka + 1650*a2**2*b1*ka + 825*a2**2*b2*ka - 4950*a2*b1*b2*
ka - 4950*a2*b2**2*ka) + 3003*df(x1,t,2)*df(x1,t)**8*x1**6*x2**3*a1**7*( - 168*a1**2*ka + 56*a1**2*kc - 88*a1*a2*ka + 
376*a1*a2*kc + 112*a1*b1*ka + 192*a1*b2*ka - 480*a1*b2*kc - 35*a2**2*ka - 35*a2*b1*ka + 35*b1*b2*ka + 35*b2**2*ka) + 3*
df(x1,t,2)*df(x1,t)**8*x1**6*x2**2*a1**5*vm*(16464*a1**3*ka - 43668*a1**2*a2*ka - 25872*a1**2*b1*ka - 31152*a1**2*b2*ka 
+ 78078*a1**2*b2*kc - 18225*a1*a2**2*ka - 34320*a1*a2*b1*ka - 7920*a1*a2*b2*ka + 7755*a1*b1*b2*ka + 7755*a1*b2**2*ka - 
15015*a1*b2**2*kc - 850*a2**3*ka - 3300*a2**2*b1*ka - 1650*a2**2*b2*ka + 9900*a2*b1*b2*ka + 9900*a2*b2**2*ka) + 15015*df
(x1,t,2)*df(x1,t)**8*x1**5*x2**4*a1**7*(56*a1**2*ka - 28*a1**2*kc + 24*a1*a2*ka - 94*a1*a2*kc - 28*a1*b1*ka - 50*a1*b2*
ka + 120*a1*b2*kc + 7*a2**2*ka + 7*a2*b1*ka - 7*b1*b2*ka - 7*b2**2*ka) + 3*df(x1,t,2)*df(x1,t)**8*x1**5*x2**3*a1**5*vm*(
 - 42336*a1**3*ka + 97700*a1**2*a2*ka + 55440*a1**2*b1*ka + 68640*a1**2*b2*ka - 135135*a1**2*b2*kc + 27630*a1*a2**2*ka +
 50160*a1*a2*b1*ka + 5940*a1*a2*b2*ka - 14190*a1*b1*b2*ka - 14190*a1*b2**2*ka + 20020*a1*b2**2*kc + 850*a2**3*ka + 3300*
a2**2*b1*ka + 1650*a2**2*b2*ka - 9900*a2*b1*b2*ka - 9900*a2*b2**2*ka) + 3003*df(x1,t,2)*df(x1,t)**8*x1**4*x2**5*a1**7*( 
- 308*a1**2*ka + 196*a1**2*kc - 104*a1*a2*ka + 376*a1*a2*kc + 112*a1*b1*ka + 208*a1*b2*ka - 480*a1*b2*kc - 21*a2**2*ka -
 21*a2*b1*ka + 21*b1*b2*ka + 21*b2**2*ka) + 15*df(x1,t,2)*df(x1,t)**8*x1**4*x2**4*a1**5*vm*(12180*a1**3*ka - 25412*a1**2
*a2*ka - 13860*a1**2*b1*ka - 16764*a1**2*b2*ka + 28028*a1**2*b2*kc - 4644*a1*a2**2*ka - 8184*a1*a2*b1*ka - 198*a1*a2*b2*
ka + 2706*a1*b1*b2*ka + 2706*a1*b2**2*ka - 3003*a1*b2**2*kc - 85*a2**3*ka - 330*a2**2*b1*ka - 165*a2**2*b2*ka + 990*a2*
b1*b2*ka + 990*a2*b2**2*ka) + 3003*df(x1,t,2)*df(x1,t)**8*x1**3*x2**6*a1**7*(224*a1**2*ka - 168*a1**2*kc + 56*a1*a2*ka -
 188*a1*a2*kc - 56*a1*b1*ka - 108*a1*b2*ka + 240*a1*b2*kc + 7*a2**2*ka + 7*a2*b1*ka - 7*b1*b2*ka - 7*b2**2*ka) + 3*df(x1
,t,2)*df(x1,t)**8*x1**3*x2**5*a1**5*vm*( - 50680*a1**3*ka + 96516*a1**2*a2*ka + 50820*a1**2*b1*ka + 58476*a1**2*b2*ka - 
87087*a1**2*b2*kc + 10287*a1*a2**2*ka + 17688*a1*a2*b1*ka - 990*a1*a2*b2*ka - 6567*a1*b1*b2*ka - 6567*a1*b2**2*ka + 6006
*a1*b2**2*kc + 85*a2**3*ka + 330*a2**2*b1*ka + 165*a2**2*b2*ka - 990*a2*b1*b2*ka - 990*a2*b2**2*ka) + 429*df(x1,t,2)*df(
x1,t)**8*x1**2*x2**7*a1**7*( - 728*a1**2*ka + 616*a1**2*kc - 120*a1*a2*ka + 376*a1*a2*kc + 112*a1*b1*ka + 224*a1*b2*ka -
 480*a1*b2*kc - 7*a2**2*ka - 7*a2*b1*ka + 7*b1*b2*ka + 7*b2**2*ka) + 33*df(x1,t,2)*df(x1,t)**8*x1**2*x2**6*a1**6*vm*(
2128*a1**2*ka - 3620*a1*a2*ka - 1848*a1*b1*ka - 1992*a1*b2*ka + 2730*a1*b2*kc - 171*a2**2*ka - 288*a2*b1*ka + 36*a2*b2*
ka + 117*b1*b2*ka + 117*b2**2*ka - 91*b2**2*kc) + 429*df(x1,t,2)*df(x1,t)**8*x1*x2**8*a1**8*(196*a1*ka - 182*a1*kc + 16*
a2*ka - 47*a2*kc - 14*b1*ka - 29*b2*ka + 60*b2*kc) + 33*df(x1,t,2)*df(x1,t)**8*x1*x2**7*a1**7*vm*( - 464*a1*ka + 628*a2*
ka + 312*b1*ka + 312*b2*ka - 403*b2*kc) + 10010*df(x1,t,2)*df(x1,t)**8*x2**9*a1**9*( - ka + kc) + 858*df(x1,t,2)*df(x1,t
)**8*x2**8*a1**8*ka*vm + 143*df(x1,t,2)*df(x1,t)**7*x1**10*a1**8*(14*a1**2*ka + 14*a1**2*kc + 21*a1*a2*ka - 129*a1*a2*kc
 - 28*a1*b1*ka - 42*a1*b2*ka + 150*a1*b2*kc + 24*a2**2*ka + 24*a2*b1*ka - 24*b1*b2*ka - 24*b2**2*ka) + 429*df(x1,t,2)*df
(x1,t)**7*x1**9*x2*a1**8*( - 56*a1**2*ka - 28*a1**2*kc - 70*a1*a2*ka + 387*a1*a2*kc + 84*a1*b1*ka + 133*a1*b2*ka - 450*
a1*b2*kc - 64*a2**2*ka - 64*a2*b1*ka + 64*b1*b2*ka + 64*b2**2*ka) + df(x1,t,2)*df(x1,t)**7*x1**9*a1**6*vm*( - 20*a1**3*
ka - 1512*a1**2*a2*ka - 990*a1**2*b1*ka + 1089*a1**2*b2*ka + 9009*a1**2*b2*kc - 3096*a1*a2**2*ka - 5544*a1*a2*b1*ka - 
5808*a1*a2*b2*ka - 396*a1*b1*b2*ka - 396*a1*b2**2*ka - 3432*a1*b2**2*kc - 1032*a2**3*ka - 1980*a2**2*b1*ka + 396*a2**2*
b2*ka + 4752*a2*b1*b2*ka + 4752*a2*b2**2*ka) + 858*df(x1,t,2)*df(x1,t)**7*x1**8*x2**2*a1**8*(147*a1**2*ka + 21*a1**2*kc 
+ 154*a1*a2*ka - 774*a1*a2*kc - 168*a1*b1*ka - 280*a1*b2*ka + 900*a1*b2*kc + 112*a2**2*ka + 112*a2*b1*ka - 112*b1*b2*ka 
- 112*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**7*x1**8*x2*a1**6*vm*( - 210*a1**3*ka + 1482*a1**2*a2*ka + 990*a1**2*b1*ka + 
198*a1**2*b2*ka - 6292*a1**2*b2*kc + 2351*a1*a2**2*ka + 3696*a1*a2*b1*ka + 2860*a1*a2*b2*ka - 88*a1*b1*b2*ka - 88*a1*b2
**2*ka + 2002*a1*b2**2*kc + 516*a2**3*ka + 990*a2**2*b1*ka - 198*a2**2*b2*ka - 2376*a2*b1*b2*ka - 2376*a2*b2**2*ka) + 
12012*df(x1,t,2)*df(x1,t)**7*x1**7*x2**3*a1**8*( - 32*a1**2*ka + 4*a1**2*kc - 28*a1*a2*ka + 129*a1*a2*kc + 28*a1*b1*ka +
 49*a1*b2*ka - 150*a1*b2*kc - 16*a2**2*ka - 16*a2*b1*ka + 16*b1*b2*ka + 16*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**7*x1**7*
x2**2*a1**6*vm*(1878*a1**3*ka - 7665*a1**2*a2*ka - 4851*a1**2*b1*ka - 3773*a1**2*b2*ka + 23023*a1**2*b2*kc - 8688*a1*a2
**2*ka - 12474*a1*a2*b1*ka - 6996*a1*a2*b2*ka + 1221*a1*b1*b2*ka + 1221*a1*b2**2*ka - 6006*a1*b2**2*kc - 1290*a2**3*ka -
 2475*a2**2*b1*ka + 495*a2**2*b2*ka + 5940*a2*b1*b2*ka + 5940*a2*b2**2*ka) + 6006*df(x1,t,2)*df(x1,t)**7*x1**6*x2**4*a1
**8*(126*a1**2*ka - 42*a1**2*kc + 91*a1*a2*ka - 387*a1*a2*kc - 84*a1*b1*ka - 154*a1*b2*ka + 450*a1*b2*kc + 40*a2**2*ka +
 40*a2*b1*ka - 40*b1*b2*ka - 40*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**7*x1**6*x2**3*a1**6*vm*( - 6860*a1**3*ka + 21924*a1
**2*a2*ka + 12936*a1**2*b1*ka + 13398*a1**2*b2*ka - 48048*a1**2*b2*kc + 17205*a1*a2**2*ka + 23100*a1*a2*b1*ka + 9020*a1*
a2*b2*ka - 3630*a1*b1*b2*ka - 3630*a1*b2**2*ka + 10010*a1*b2**2*kc + 1720*a2**3*ka + 3300*a2**2*b1*ka - 660*a2**2*b2*ka 
- 7920*a2*b1*b2*ka - 7920*a2*b2**2*ka) + 6006*df(x1,t,2)*df(x1,t)**7*x1**5*x2**5*a1**8*( - 168*a1**2*ka + 84*a1**2*kc - 
98*a1*a2*ka + 387*a1*a2*kc + 84*a1*b1*ka + 161*a1*b2*ka - 450*a1*b2*kc - 32*a2**2*ka - 32*a2*b1*ka + 32*b1*b2*ka + 32*b2
**2*ka) + 6*df(x1,t,2)*df(x1,t)**7*x1**5*x2**4*a1**6*vm*(27384*a1**3*ka - 75390*a1**2*a2*ka - 41580*a1**2*b1*ka - 47355*
a1**2*b2*ka + 125125*a1**2*b2*kc - 39860*a1*a2**2*ka - 50820*a1*a2*b1*ka - 12760*a1*a2*b2*ka + 10450*a1*b1*b2*ka + 10450
*a1*b2**2*ka - 20020*a1*b2**2*kc - 2580*a2**3*ka - 4950*a2**2*b1*ka + 990*a2**2*b2*ka + 11880*a2*b1*b2*ka + 11880*a2*b2
**2*ka) + 12012*df(x1,t,2)*df(x1,t)**7*x1**4*x2**6*a1**8*(77*a1**2*ka - 49*a1**2*kc + 35*a1*a2*ka - 129*a1*a2*kc - 28*a1
*b1*ka - 56*a1*b2*ka + 150*a1*b2*kc + 8*a2**2*ka + 8*a2*b1*ka - 8*b1*b2*ka - 8*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**7*x1
**4*x2**5*a1**6*vm*( - 16380*a1**3*ka + 40026*a1**2*a2*ka + 20790*a1**2*b1*ka + 24178*a1**2*b2*ka - 52052*a1**2*b2*kc + 
13593*a1*a2**2*ka + 16632*a1*a2*b1*ka + 2244*a1*a2*b2*ka - 4092*a1*b1*b2*ka - 4092*a1*b2**2*ka + 6006*a1*b2**2*kc + 516*
a2**3*ka + 990*a2**2*b1*ka - 198*a2**2*b2*ka - 2376*a2*b1*b2*ka - 2376*a2*b2**2*ka) + 1716*df(x1,t,2)*df(x1,t)**7*x1**3*
x2**7*a1**8*( - 336*a1**2*ka + 252*a1**2*kc - 112*a1*a2*ka + 387*a1*a2*kc + 84*a1*b1*ka + 175*a1*b2*ka - 450*a1*b2*kc - 
16*a2**2*ka - 16*a2*b1*ka + 16*b1*b2*ka + 16*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**7*x1**3*x2**6*a1**6*vm*(11970*a1**3*ka 
- 25767*a1**2*a2*ka - 12705*a1**2*b1*ka - 14553*a1**2*b2*ka + 27027*a1**2*b2*kc - 5076*a1*a2**2*ka - 6006*a1*a2*b1*ka - 
220*a1*a2*b2*ka + 1683*a1*b1*b2*ka + 1683*a1*b2**2*ka - 2002*a1*b2**2*kc - 86*a2**3*ka - 165*a2**2*b1*ka + 33*a2**2*b2*
ka + 396*a2*b1*b2*ka + 396*a2*b2**2*ka) + 429*df(x1,t,2)*df(x1,t)**7*x1**2*x2**8*a1**8*(546*a1**2*ka - 462*a1**2*kc + 
119*a1*a2*ka - 387*a1*a2*kc - 84*a1*b1*ka - 182*a1*b2*ka + 450*a1*b2*kc + 8*a2**2*ka + 8*a2*b1*ka - 8*b1*b2*ka - 8*b2**2
*ka) + 132*df(x1,t,2)*df(x1,t)**7*x1**2*x2**7*a1**7*vm*( - 468*a1**2*ka + 840*a1*a2*ka + 396*a1*b1*ka + 438*a1*b2*ka - 
728*a1*b2*kc + 73*a2**2*ka + 84*a2*b1*ka - 4*a2*b2*ka - 26*b1*b2*ka - 26*b2**2*ka + 26*b2**2*kc) + 143*df(x1,t,2)*df(x1,
t)**7*x1*x2**9*a1**9*( - 392*a1*ka + 364*a1*kc - 42*a2*ka + 129*a2*kc + 28*b1*ka + 63*b2*ka - 150*b2*kc) + 33*df(x1,t,2)
*df(x1,t)**7*x1*x2**8*a1**8*vm*(420*a1*ka - 516*a2*ka - 234*b1*ka - 247*b2*ka + 377*b2*kc) + 6006*df(x1,t,2)*df(x1,t)**7
*x2**10*a1**10*(ka - kc) - 1144*df(x1,t,2)*df(x1,t)**7*x2**9*a1**9*ka*vm + 91*df(x1,t,2)*df(x1,t)**6*x1**11*a1**9*(8*a1
**2*ka + 14*a1**2*kc + 22*a1*a2*ka - 143*a1*a2*kc - 22*a1*b1*ka - 33*a1*b2*ka + 154*a1*b2*kc + 33*a2**2*ka + 33*a2*b1*ka
 - 33*b1*b2*ka - 33*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)**6*x1**10*x2*a1**9*( - 10*a1**2*ka - 10*a1**2*kc - 22*a1*a2*ka 
+ 130*a1*a2*kc + 20*a1*b1*ka + 32*a1*b2*ka - 140*a1*b2*kc - 27*a2**2*ka - 27*a2*b1*ka + 27*b1*b2*ka + 27*b2**2*ka) + df(
x1,t,2)*df(x1,t)**6*x1**10*a1**7*vm*( - 112*a1**3*ka - 765*a1**2*a2*ka - 330*a1**2*b1*ka + 1870*a1**2*b2*ka + 6006*a1**2
*b2*kc - 1920*a1*a2**2*ka - 3960*a1*a2*b1*ka - 6864*a1*a2*b2*ka - 891*a1*b1*b2*ka - 891*a1*b2**2*ka - 3003*a1*b2**2*kc -
 2268*a2**3*ka - 2772*a2**2*b1*ka + 1848*a2**2*b2*ka + 5544*a2*b1*b2*ka + 5544*a2*b2**2*ka) + 3003*df(x1,t,2)*df(x1,t)**
6*x1**9*x2**2*a1**9*(20*a1**2*ka + 10*a1**2*kc + 36*a1*a2*ka - 195*a1*a2*kc - 30*a1*b1*ka - 51*a1*b2*ka + 210*a1*b2*kc +
 36*a2**2*ka + 36*a2*b1*ka - 36*b1*b2*ka - 36*b2**2*ka) + 3*df(x1,t,2)*df(x1,t)**6*x1**9*x2*a1**7*vm*(100*a1**3*ka + 
2709*a1**2*a2*ka + 1650*a1**2*b1*ka - 3234*a1**2*b2*ka - 19019*a1**2*b2*kc + 8044*a1*a2**2*ka + 12408*a1*a2*b1*ka + 
16192*a1*a2*b2*ka + 1364*a1*b1*b2*ka + 1364*a1*b2**2*ka + 8008*a1*b2**2*kc + 5292*a2**3*ka + 6468*a2**2*b1*ka - 4312*a2
**2*b2*ka - 12936*a2*b1*b2*ka - 12936*a2*b2**2*ka) + 6006*df(x1,t,2)*df(x1,t)**6*x1**8*x2**3*a1**9*( - 35*a1**2*ka - 5*
a1**2*kc - 52*a1*a2*ka + 260*a1*a2*kc + 40*a1*b1*ka + 72*a1*b2*ka - 280*a1*b2*kc - 42*a2**2*ka - 42*a2*b1*ka + 42*b1*b2*
ka + 42*b2**2*ka) + 6*df(x1,t,2)*df(x1,t)**6*x1**8*x2**2*a1**7*vm*(675*a1**3*ka - 7578*a1**2*a2*ka - 4950*a1**2*b1*ka + 
1782*a1**2*b2*ka + 40040*a1**2*b2*kc - 19194*a1*a2**2*ka - 24948*a1*a2*b1*ka - 24640*a1*a2*b2*ka - 616*a1*b1*b2*ka - 616
*a1*b2**2*ka - 14014*a1*b2**2*kc - 7938*a2**3*ka - 9702*a2**2*b1*ka + 6468*a2**2*b2*ka + 19404*a2*b1*b2*ka + 19404*a2*b2
**2*ka) + 6006*df(x1,t,2)*df(x1,t)**6*x1**7*x2**4*a1**9*(80*a1**2*ka - 10*a1**2*kc + 98*a1*a2*ka - 455*a1*a2*kc - 70*a1*
b1*ka - 133*a1*b2*ka + 490*a1*b2*kc + 63*a2**2*ka + 63*a2*b1*ka - 63*b1*b2*ka - 63*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**6
*x1**7*x2**3*a1**7*vm*( - 2350*a1**3*ka + 12915*a1**2*a2*ka + 8085*a1**2*b1*ka + 3311*a1**2*b2*ka - 49049*a1**2*b2*kc + 
24311*a1*a2**2*ka + 28182*a1*a2*b1*ka + 20944*a1*a2*b2*ka - 1155*a1*b1*b2*ka - 1155*a1*b2**2*ka + 14014*a1*b2**2*kc + 
6615*a2**3*ka + 8085*a2**2*b1*ka - 5390*a2**2*b2*ka - 16170*a2*b1*b2*ka - 16170*a2*b2**2*ka) + 126126*df(x1,t,2)*df(x1,t
)**6*x1**6*x2**5*a1**9*( - 6*a1**2*ka + 2*a1**2*kc - 6*a1*a2*ka + 26*a1*a2*kc + 4*a1*b1*ka + 8*a1*b2*ka - 28*a1*b2*kc - 
3*a2**2*ka - 3*a2*b1*ka + 3*b1*b2*ka + 3*b2**2*ka) + 42*df(x1,t,2)*df(x1,t)**6*x1**6*x2**4*a1**7*vm*(1960*a1**3*ka - 
7947*a1**2*a2*ka - 4620*a1**2*b1*ka - 3696*a1**2*b2*ka + 22022*a1**2*b2*kc - 10510*a1*a2**2*ka - 11220*a1*a2*b1*ka - 
6160*a1*a2*b2*ka + 1045*a1*b1*b2*ka + 1045*a1*b2**2*ka - 5005*a1*b2**2*kc - 1890*a2**3*ka - 2310*a2**2*b1*ka + 1540*a2**
2*b2*ka + 4620*a2*b1*b2*ka + 4620*a2*b2**2*ka) + 42042*df(x1,t,2)*df(x1,t)**6*x1**5*x2**6*a1**9*(20*a1**2*ka - 10*a1**2*
kc + 16*a1*a2*ka - 65*a1*a2*kc - 10*a1*b1*ka - 21*a1*b2*ka + 70*a1*b2*kc + 6*a2**2*ka + 6*a2*b1*ka - 6*b1*b2*ka - 6*b2**
2*ka) + 42*df(x1,t,2)*df(x1,t)**6*x1**5*x2**5*a1**7*vm*( - 3288*a1**3*ka + 11025*a1**2*a2*ka + 5940*a1**2*b1*ka + 5940*
a1**2*b2*ka - 23023*a1**2*b2*kc + 9870*a1*a2**2*ka + 9900*a1*a2*b1*ka + 3872*a1*a2*b2*ka - 1342*a1*b1*b2*ka - 1342*a1*b2
**2*ka + 4004*a1*b2**2*kc + 1134*a2**3*ka + 1386*a2**2*b1*ka - 924*a2**2*b2*ka - 2772*a2*b1*b2*ka - 2772*a2*b2**2*ka) + 
12012*df(x1,t,2)*df(x1,t)**6*x1**4*x2**7*a1**9*( - 55*a1**2*ka + 35*a1**2*kc - 34*a1*a2*ka + 130*a1*a2*kc + 20*a1*b1*ka 
+ 44*a1*b2*ka - 140*a1*b2*kc - 9*a2**2*ka - 9*a2*b1*ka + 9*b1*b2*ka + 9*b2**2*ka) + 84*df(x1,t,2)*df(x1,t)**6*x1**4*x2**
6*a1**7*vm*(1725*a1**3*ka - 4923*a1**2*a2*ka - 2475*a1**2*b1*ka - 2717*a1**2*b2*ka + 8008*a1**2*b2*kc - 2833*a1*a2**2*ka
 - 2706*a1*a2*b1*ka - 704*a1*a2*b2*ka + 462*a1*b1*b2*ka + 462*a1*b2**2*ka - 1001*a1*b2**2*kc - 189*a2**3*ka - 231*a2**2*
b1*ka + 154*a2**2*b2*ka + 462*a2*b1*b2*ka + 462*a2*b2**2*ka) + 9009*df(x1,t,2)*df(x1,t)**6*x1**3*x2**8*a1**9*(40*a1**2*
ka - 30*a1**2*kc + 18*a1*a2*ka - 65*a1*a2*kc - 10*a1*b1*ka - 23*a1*b2*ka + 70*a1*b2*kc + 3*a2**2*ka + 3*a2*b1*ka - 3*b1*
b2*ka - 3*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**6*x1**3*x2**7*a1**7*vm*( - 8050*a1**3*ka + 19179*a1**2*a2*ka + 9075*a1**2*
b1*ka + 10329*a1**2*b2*ka - 25025*a1**2*b2*kc + 6397*a1*a2**2*ka + 5874*a1*a2*b1*ka + 880*a1*a2*b2*ka - 1177*a1*b1*b2*ka
 - 1177*a1*b2**2*ka + 2002*a1*b2**2*kc + 189*a2**3*ka + 231*a2**2*b1*ka - 154*a2**2*b2*ka - 462*a2*b1*b2*ka - 462*a2*b2
**2*ka) + 1001*df(x1,t,2)*df(x1,t)**6*x1**2*x2**9*a1**9*( - 130*a1**2*ka + 110*a1**2*kc - 38*a1*a2*ka + 130*a1*a2*kc + 
20*a1*b1*ka + 48*a1*b2*ka - 140*a1*b2*kc - 3*a2**2*ka - 3*a2*b1*ka + 3*b1*b2*ka + 3*b2**2*ka) + 33*df(x1,t,2)*df(x1,t)**
6*x1**2*x2**8*a1**8*vm*(1200*a1**2*ka - 2205*a1*a2*ka - 990*a1*b1*ka - 1134*a1*b2*ka + 2366*a1*b2*kc - 324*a2**2*ka - 
288*a2*b1*ka - 16*a2*b2*ka + 65*b1*b2*ka + 65*b2**2*ka - 91*b2**2*kc) + 1001*df(x1,t,2)*df(x1,t)**6*x1*x2**10*a1**10*(28
*a1*ka - 26*a1*kc + 4*a2*ka - 13*a2*kc - 2*b1*ka - 5*b2*ka + 14*b2*kc) + 11*df(x1,t,2)*df(x1,t)**6*x1*x2**9*a1**9*vm*( -
 820*a1*ka + 909*a2*ka + 390*b1*ka + 442*b2*ka - 819*b2*kc) + 2730*df(x1,t,2)*df(x1,t)**6*x2**11*a1**11*( - ka + kc) + 
858*df(x1,t,2)*df(x1,t)**6*x2**10*a1**10*ka*vm + 91*df(x1,t,2)*df(x1,t)**5*x1**12*a1**10*(2*a1**2*ka + 6*a1**2*kc + 11*
a1*a2*ka - 77*a1*a2*kc - 8*a1*b1*ka - 12*a1*b2*ka + 78*a1*b2*kc + 22*a2**2*ka + 22*a2*b1*ka - 22*b1*b2*ka - 22*b2**2*ka)
 + 91*df(x1,t,2)*df(x1,t)**5*x1**11*x2*a1**10*( - 32*a1**2*ka - 56*a1**2*kc - 132*a1*a2*ka + 847*a1*a2*kc + 88*a1*b1*ka 
+ 143*a1*b2*ka - 858*a1*b2*kc - 220*a2**2*ka - 220*a2*b1*ka + 220*b1*b2*ka + 220*b2**2*ka) + df(x1,t,2)*df(x1,t)**5*x1**
11*a1**8*vm*( - 44*a1**3*ka - 500*a1**2*a2*ka - 66*a1**2*b1*ka + 1320*a1**2*b2*ka + 3003*a1**2*b2*kc - 324*a1*a2**2*ka -
 1980*a1*a2*b1*ka - 5346*a1*a2*b2*ka - 825*a1*b1*b2*ka - 825*a1*b2**2*ka - 2002*a1*b2**2*kc - 3144*a2**3*ka - 2772*a2**2
*b1*ka + 2772*a2**2*b2*ka + 4752*a2*b1*b2*ka + 4752*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)**5*x1**10*x2**2*a1**10*(4*a1
**2*ka + 4*a1**2*kc + 13*a1*a2*ka - 77*a1*a2*kc - 8*a1*b1*ka - 14*a1*b2*ka + 78*a1*b2*kc + 18*a2**2*ka + 18*a2*b1*ka - 
18*b1*b2*ka - 18*b2**2*ka) + df(x1,t,2)*df(x1,t)**5*x1**10*x2*a1**8*vm*(424*a1**3*ka + 4330*a1**2*a2*ka + 1320*a1**2*b1*
ka - 10230*a1**2*b2*ka - 32032*a1**2*b2*kc + 10611*a1*a2**2*ka + 21780*a1*a2*b1*ka + 43956*a1*a2*b2*ka + 5742*a1*b1*b2*
ka + 5742*a1*b2**2*ka + 18018*a1*b2**2*kc + 25152*a2**3*ka + 22176*a2**2*b1*ka - 22176*a2**2*b2*ka - 38016*a2*b1*b2*ka -
 38016*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)**5*x1**9*x2**3*a1**10*( - 16*a1**2*ka - 8*a1**2*kc - 42*a1*a2*ka + 231*a1
*a2*kc + 24*a1*b1*ka + 45*a1*b2*ka - 234*a1*b2*kc - 48*a2**2*ka - 48*a2*b1*ka + 48*b1*b2*ka + 48*b2**2*ka) + df(x1,t,2)*
df(x1,t)**5*x1**9*x2**2*a1**8*vm*( - 1000*a1**3*ka - 20655*a1**2*a2*ka - 9900*a1**2*b1*ka + 32175*a1**2*b2*ka + 153153*
a1**2*b2*kc - 73224*a1*a2**2*ka - 102960*a1*a2*b1*ka - 159192*a1*a2*b2*ka - 16236*a1*b1*b2*ka - 16236*a1*b2**2*ka - 
72072*a1*b2**2*kc - 88032*a2**3*ka - 77616*a2**2*b1*ka + 77616*a2**2*b2*ka + 133056*a2*b1*b2*ka + 133056*a2*b2**2*ka) + 
30030*df(x1,t,2)*df(x1,t)**5*x1**8*x2**4*a1**10*(7*a1**2*ka + a1**2*kc + 15*a1*a2*ka - 77*a1*a2*kc - 8*a1*b1*ka - 16*a1*
b2*ka + 78*a1*b2*kc + 14*a2**2*ka + 14*a2*b1*ka - 14*b1*b2*ka - 14*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**5*x1**8*x2**3*a1
**8*vm*( - 200*a1**3*ka + 5780*a1**2*a2*ka + 3300*a1**2*b1*ka - 3960*a1**2*b2*ka - 36036*a1**2*b2*kc + 20223*a1*a2**2*ka
 + 23100*a1*a2*b1*ka + 27720*a1*a2*b2*ka + 1848*a1*b1*b2*ka + 1848*a1*b2**2*ka + 14014*a1*b2**2*kc + 14672*a2**3*ka + 
12936*a2**2*b1*ka - 12936*a2**2*b2*ka - 22176*a2*b1*b2*ka - 22176*a2*b2**2*ka) + 6006*df(x1,t,2)*df(x1,t)**5*x1**7*x2**5
*a1**10*( - 64*a1**2*ka + 8*a1**2*kc - 112*a1*a2*ka + 539*a1*a2*kc + 56*a1*b1*ka + 119*a1*b2*ka - 546*a1*b2*kc - 84*a2**
2*ka - 84*a2*b1*ka + 84*b1*b2*ka + 84*b2**2*ka) + 6*df(x1,t,2)*df(x1,t)**5*x1**7*x2**4*a1**8*vm*(3140*a1**3*ka - 27650*
a1**2*a2*ka - 16170*a1**2*b1*ka + 2310*a1**2*b2*ka + 133133*a1**2*b2*kc - 78624*a1*a2**2*ka - 78540*a1*a2*b1*ka - 73458*
a1*a2*b2*ka - 1617*a1*b1*b2*ka - 1617*a1*b2**2*ka - 42042*a1*b2**2*kc - 36680*a2**3*ka - 32340*a2**2*b1*ka + 32340*a2**2
*b2*ka + 55440*a2*b1*b2*ka + 55440*a2*b2**2*ka) + 42042*df(x1,t,2)*df(x1,t)**5*x1**6*x2**6*a1**10*(12*a1**2*ka - 4*a1**2
*kc + 17*a1*a2*ka - 77*a1*a2*kc - 8*a1*b1*ka - 18*a1*b2*ka + 78*a1*b2*kc + 10*a2**2*ka + 10*a2*b1*ka - 10*b1*b2*ka - 10*
b2**2*ka) + 42*df(x1,t,2)*df(x1,t)**5*x1**6*x2**5*a1**8*vm*( - 1176*a1**3*ka + 6570*a1**2*a2*ka + 3696*a1**2*b1*ka + 
1650*a1**2*b2*ka - 24024*a1**2*b2*kc + 13797*a1*a2**2*ka + 12540*a1*a2*b1*ka + 9108*a1*a2*b2*ka - 330*a1*b1*b2*ka - 330*
a1*b2**2*ka + 6006*a1*b2**2*kc + 4192*a2**3*ka + 3696*a2**2*b1*ka - 3696*a2**2*b2*ka - 6336*a2*b1*b2*ka - 6336*a2*b2**2*
ka) + 30030*df(x1,t,2)*df(x1,t)**5*x1**5*x2**7*a1**10*( - 16*a1**2*ka + 8*a1**2*kc - 18*a1*a2*ka + 77*a1*a2*kc + 8*a1*b1
*ka + 19*a1*b2*ka - 78*a1*b2*kc - 8*a2**2*ka - 8*a2*b1*ka + 8*b1*b2*ka + 8*b2**2*ka) + 42*df(x1,t,2)*df(x1,t)**5*x1**5*
x2**6*a1**8*vm*(1776*a1**3*ka - 7465*a1**2*a2*ka - 3960*a1**2*b1*ka - 3135*a1**2*b2*ka + 21021*a1**2*b2*kc - 10908*a1*a2
**2*ka - 9240*a1*a2*b1*ka - 5148*a1*a2*b2*ka + 594*a1*b1*b2*ka + 594*a1*b2**2*ka - 4004*a1*b2**2*kc - 2096*a2**3*ka - 
1848*a2**2*b1*ka + 1848*a2**2*b2*ka + 3168*a2*b1*b2*ka + 3168*a2*b2**2*ka) + 15015*df(x1,t,2)*df(x1,t)**5*x1**4*x2**8*a1
**10*(22*a1**2*ka - 14*a1**2*kc + 19*a1*a2*ka - 77*a1*a2*kc - 8*a1*b1*ka - 20*a1*b2*ka + 78*a1*b2*kc + 6*a2**2*ka + 6*a2
*b1*ka - 6*b1*b2*ka - 6*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**5*x1**4*x2**7*a1**8*vm*( - 6000*a1**3*ka + 19840*a1**2*a2*ka
 + 9900*a1**2*b1*ka + 9900*a1**2*b2*ka - 44044*a1**2*b2*kc + 18927*a1*a2**2*ka + 15180*a1*a2*b1*ka + 6336*a1*a2*b2*ka - 
1452*a1*b1*b2*ka - 1452*a1*b2**2*ka + 6006*a1*b2**2*kc + 2096*a2**3*ka + 1848*a2**2*b1*ka - 1848*a2**2*b2*ka - 3168*a2*
b1*b2*ka - 3168*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)**5*x1**3*x2**9*a1**10*( - 32*a1**2*ka + 24*a1**2*kc - 20*a1*a2*
ka + 77*a1*a2*kc + 8*a1*b1*ka + 21*a1*b2*ka - 78*a1*b2*kc - 4*a2**2*ka - 4*a2*b1*ka + 4*b1*b2*ka + 4*b2**2*ka) + 3*df(x1
,t,2)*df(x1,t)**5*x1**3*x2**8*a1**8*vm*(15100*a1**3*ka - 38520*a1**2*a2*ka - 18150*a1**2*b1*ka - 20460*a1**2*b2*ka + 
69069*a1**2*b2*kc - 21492*a1*a2**2*ka - 16500*a1*a2*b1*ka - 4950*a1*a2*b2*ka + 2013*a1*b1*b2*ka + 2013*a1*b2**2*ka - 
6006*a1*b2**2*kc - 1048*a2**3*ka - 924*a2**2*b1*ka + 924*a2**2*b2*ka + 1584*a2*b1*b2*ka + 1584*a2*b2**2*ka) + 1001*df(x1
,t,2)*df(x1,t)**5*x1**2*x2**10*a1**10*(52*a1**2*ka - 44*a1**2*kc + 21*a1*a2*ka - 77*a1*a2*kc - 8*a1*b1*ka - 22*a1*b2*ka 
+ 78*a1*b2*kc + 2*a2**2*ka + 2*a2*b1*ka - 2*b1*b2*ka - 2*b2**2*ka) + 11*df(x1,t,2)*df(x1,t)**5*x1**2*x2**9*a1**9*vm*( - 
1640*a1**2*ka + 2950*a1*a2*ka + 1320*a1*b1*ka + 1590*a1*b2*ka - 4368*a1*b2*kc + 729*a2**2*ka + 540*a2*b1*ka + 108*a2*b2*
ka - 78*b1*b2*ka - 78*b2**2*ka + 182*b2**2*kc) + 91*df(x1,t,2)*df(x1,t)**5*x1*x2**11*a1**11*( - 112*a1*ka + 104*a1*kc - 
22*a2*ka + 77*a2*kc + 8*b1*ka + 23*b2*ka - 78*b2*kc) + 11*df(x1,t,2)*df(x1,t)**5*x1*x2**10*a1**10*vm*(376*a1*ka - 365*a2
*ka - 156*b1*ka - 195*b2*ka + 455*b2*kc) + 910*df(x1,t,2)*df(x1,t)**5*x2**12*a1**12*(ka - kc) - 416*df(x1,t,2)*df(x1,t)
**5*x2**11*a1**11*ka*vm + 7*df(x1,t,2)*df(x1,t)**4*x1**13*a1**11*(4*a1**2*ka + 22*a1**2*kc + 52*a1*a2*ka - 403*a1*a2*kc 
- 26*a1*b1*ka - 39*a1*b2*ka + 390*a1*b2*kc + 143*a2**2*ka + 143*a2*b1*ka - 143*b1*b2*ka - 143*b2**2*ka) + 91*df(x1,t,2)*
df(x1,t)**4*x1**12*x2*a1**11*( - 6*a1**2*ka - 18*a1**2*kc - 52*a1*a2*ka + 372*a1*a2*kc + 24*a1*b1*ka + 40*a1*b2*ka - 360
*a1*b2*kc - 121*a2**2*ka - 121*a2*b1*ka + 121*b1*b2*ka + 121*b2**2*ka) + df(x1,t,2)*df(x1,t)**4*x1**12*a1**9*vm*( - 6*a1
**3*ka - 270*a1**2*a2*ka - 6*a1**2*b1*ka + 534*a1**2*b2*ka + 1092*a1**2*b2*kc + 390*a1*a2**2*ka - 660*a1*a2*b1*ka - 2750
*a1*a2*b2*ka - 462*a1*b1*b2*ka - 462*a1*b2**2*ka - 1001*a1*b2**2*kc - 2895*a2**3*ka - 1980*a2**2*b1*ka + 2475*a2**2*b2*
ka + 2970*a2*b1*b2*ka + 2970*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)**4*x1**11*x2**2*a1**11*(48*a1**2*ka + 84*a1**2*kc + 
308*a1*a2*ka - 2046*a1*a2*kc - 132*a1*b1*ka - 242*a1*b2*ka + 1980*a1*b2*kc + 605*a2**2*ka + 605*a2*b1*ka - 605*b1*b2*ka 
- 605*b2**2*ka) + df(x1,t,2)*df(x1,t)**4*x1**11*x2*a1**9*vm*(108*a1**3*ka + 2430*a1**2*a2*ka + 198*a1**2*b1*ka - 5214*a1
**2*b2*ka - 13013*a1**2*b2*kc + 505*a1*a2**2*ka + 8580*a1*a2*b1*ka + 25850*a1*a2*b2*ka + 4015*a1*b1*b2*ka + 4015*a1*b2**
2*ka + 10010*a1*b2**2*kc + 26055*a2**3*ka + 17820*a2**2*b1*ka - 22275*a2**2*b2*ka - 26730*a2*b1*b2*ka - 26730*a2*b2**2*
ka) + 5005*df(x1,t,2)*df(x1,t)**4*x1**10*x2**3*a1**11*( - 4*a1**2*ka - 4*a1**2*kc - 20*a1*a2*ka + 124*a1*a2*kc + 8*a1*b1
*ka + 16*a1*b2*ka - 120*a1*b2*kc - 33*a2**2*ka - 33*a2*b1*ka + 33*b1*b2*ka + 33*b2**2*ka) + 5*df(x1,t,2)*df(x1,t)**4*x1
**10*x2**2*a1**9*vm*( - 120*a1**3*ka - 2142*a1**2*a2*ka - 396*a1**2*b1*ka + 4444*a1**2*b2*ka + 14014*a1**2*b2*kc - 4419*
a1*a2**2*ka - 9504*a1*a2*b1*ka - 21780*a1*a2*b2*ka - 3069*a1*b1*b2*ka - 3069*a1*b2**2*ka - 9009*a1*b2**2*kc - 20844*a2**
3*ka - 14256*a2**2*b1*ka + 17820*a2**2*b2*ka + 21384*a2*b1*b2*ka + 21384*a2*b2**2*ka) + 15015*df(x1,t,2)*df(x1,t)**4*x1
**9*x2**4*a1**11*(4*a1**2*ka + 2*a1**2*kc + 16*a1*a2*ka - 93*a1*a2*kc - 6*a1*b1*ka - 13*a1*b2*ka + 90*a1*b2*kc + 22*a2**
2*ka + 22*a2*b1*ka - 22*b1*b2*ka - 22*b2**2*ka) + 5*df(x1,t,2)*df(x1,t)**4*x1**9*x2**3*a1**9*vm*(280*a1**3*ka + 6318*a1
**2*a2*ka + 1980*a1**2*b1*ka - 10692*a1**2*b2*ka - 45045*a1**2*b2*kc + 22356*a1*a2**2*ka + 30096*a1*a2*b1*ka + 54120*a1*
a2*b2*ka + 6732*a1*b1*b2*ka + 6732*a1*b2**2*ka + 24024*a1*b2**2*kc + 48636*a2**3*ka + 33264*a2**2*b1*ka - 41580*a2**2*b2
*ka - 49896*a2*b1*b2*ka - 49896*a2*b2**2*ka) + 6006*df(x1,t,2)*df(x1,t)**4*x1**8*x2**5*a1**11*( - 21*a1**2*ka - 3*a1**2*
kc - 68*a1*a2*ka + 372*a1*a2*kc + 24*a1*b1*ka + 56*a1*b2*ka - 360*a1*b2*kc - 77*a2**2*ka - 77*a2*b1*ka + 77*b1*b2*ka + 
77*b2**2*ka) + 30*df(x1,t,2)*df(x1,t)**4*x1**8*x2**4*a1**9*vm*( - 15*a1**3*ka - 2322*a1**2*a2*ka - 990*a1**2*b1*ka + 
2574*a1**2*b2*ka + 16016*a1**2*b2*kc - 9604*a1*a2**2*ka - 10164*a1*a2*b1*ka - 14630*a1*a2*b2*ka - 1540*a1*b1*b2*ka - 
1540*a1*b2**2*ka - 7007*a1*b2**2*kc - 12159*a2**3*ka - 8316*a2**2*b1*ka + 10395*a2**2*b2*ka + 12474*a2*b1*b2*ka + 12474*
a2*b2**2*ka) + 6006*df(x1,t,2)*df(x1,t)**4*x1**7*x2**6*a1**11*(32*a1**2*ka - 4*a1**2*kc + 84*a1*a2*ka - 434*a1*a2*kc - 
28*a1*b1*ka - 70*a1*b2*ka + 420*a1*b2*kc + 77*a2**2*ka + 77*a2*b1*ka - 77*b1*b2*ka - 77*b2**2*ka) + 6*df(x1,t,2)*df(x1,t
)**4*x1**7*x2**5*a1**9*vm*( - 948*a1**3*ka + 19530*a1**2*a2*ka + 9702*a1**2*b1*ka - 10318*a1**2*b2*ka - 119119*a1**2*b2*
kc + 76125*a1*a2**2*ka + 69300*a1*a2*b1*ka + 80850*a1*a2*b2*ka + 6699*a1*b1*b2*ka + 6699*a1*b2**2*ka + 42042*a1*b2**2*kc
 + 60795*a2**3*ka + 41580*a2**2*b1*ka - 51975*a2**2*b2*ka - 62370*a2*b1*b2*ka - 62370*a2*b2**2*ka) + 6006*df(x1,t,2)*df(
x1,t)**4*x1**6*x2**7*a1**11*( - 36*a1**2*ka + 12*a1**2*kc - 76*a1*a2*ka + 372*a1*a2*kc + 24*a1*b1*ka + 64*a1*b2*ka - 360
*a1*b2*kc - 55*a2**2*ka - 55*a2*b1*ka + 55*b1*b2*ka + 55*b2**2*ka) + 42*df(x1,t,2)*df(x1,t)**4*x1**6*x2**6*a1**9*vm*(392
*a1**3*ka - 3510*a1**2*a2*ka - 1848*a1**2*b1*ka + 264*a1**2*b2*ka + 18018*a1**2*b2*kc - 11265*a1*a2**2*ka - 9240*a1*a2*
b1*ka - 8800*a1*a2*b2*ka - 495*a1*b1*b2*ka - 495*a1*b2**2*ka - 5005*a1*b2**2*kc - 5790*a2**3*ka - 3960*a2**2*b1*ka + 
4950*a2**2*b2*ka + 5940*a2*b1*b2*ka + 5940*a2*b2**2*ka) + 15015*df(x1,t,2)*df(x1,t)**4*x1**5*x2**8*a1**11*(12*a1**2*ka -
 6*a1**2*kc + 20*a1*a2*ka - 93*a1*a2*kc - 6*a1*b1*ka - 17*a1*b2*ka + 90*a1*b2*kc + 11*a2**2*ka + 11*a2*b1*ka - 11*b1*b2*
ka - 11*b2**2*ka) + 30*df(x1,t,2)*df(x1,t)**4*x1**5*x2**7*a1**9*vm*( - 816*a1**3*ka + 4482*a1**2*a2*ka + 2376*a1**2*b1*
ka + 1056*a1**2*b2*ka - 19019*a1**2*b2*kc + 10774*a1*a2**2*ka + 8184*a1*a2*b1*ka + 6380*a1*a2*b2*ka + 154*a1*b1*b2*ka + 
154*a1*b2**2*ka + 4004*a1*b2**2*kc + 3474*a2**3*ka + 2376*a2**2*b1*ka - 2970*a2**2*b2*ka - 3564*a2*b1*b2*ka - 3564*a2*b2
**2*ka) + 5005*df(x1,t,2)*df(x1,t)**4*x1**4*x2**9*a1**11*( - 22*a1**2*ka + 14*a1**2*kc - 28*a1*a2*ka + 124*a1*a2*kc + 8*
a1*b1*ka + 24*a1*b2*ka - 120*a1*b2*kc - 11*a2**2*ka - 11*a2*b1*ka + 11*b1*b2*ka + 11*b2**2*ka) + 15*df(x1,t,2)*df(x1,t)
**4*x1**4*x2**8*a1**9*vm*(1530*a1**3*ka - 5706*a1**2*a2*ka - 2970*a1**2*b1*ka - 2486*a1**2*b2*ka + 20020*a1**2*b2*kc - 
9402*a1*a2**2*ka - 6732*a1*a2*b1*ka - 4290*a1*a2*b2*ka + 66*a1*b1*b2*ka + 66*a1*b2**2*ka - 3003*a1*b2**2*kc - 1737*a2**3
*ka - 1188*a2**2*b1*ka + 1485*a2**2*b2*ka + 1782*a2*b1*b2*ka + 1782*a2*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)**4*x1**3*x2
**10*a1**11*(48*a1**2*ka - 36*a1**2*kc + 44*a1*a2*ka - 186*a1*a2*kc - 12*a1*b1*ka - 38*a1*b2*ka + 180*a1*b2*kc + 11*a2**
2*ka + 11*a2*b1*ka - 11*b1*b2*ka - 11*b2**2*ka) + 5*df(x1,t,2)*df(x1,t)**4*x1**3*x2**9*a1**9*vm*( - 2820*a1**3*ka + 7182
*a1**2*a2*ka + 3630*a1**2*b1*ka + 4026*a1**2*b2*ka - 21021*a1**2*b2*kc + 7149*a1*a2**2*ka + 4884*a1*a2*b1*ka + 2530*a1*
a2*b2*ka - 165*a1*b1*b2*ka - 165*a1*b2**2*ka + 2002*a1*b2**2*kc + 579*a2**3*ka + 396*a2**2*b1*ka - 495*a2**2*b2*ka - 594
*a2*b1*b2*ka - 594*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)**4*x1**2*x2**11*a1**11*( - 156*a1**2*ka + 132*a1**2*kc - 92*a1*
a2*ka + 372*a1*a2*kc + 24*a1*b1*ka + 80*a1*b2*ka - 360*a1*b2*kc - 11*a2**2*ka - 11*a2*b1*ka + 11*b1*b2*ka + 11*b2**2*ka)
 + 11*df(x1,t,2)*df(x1,t)**4*x1**2*x2**10*a1**10*vm*(504*a1**2*ka - 810*a1*a2*ka - 396*a1*b1*ka - 516*a1*b2*ka + 2002*a1
*b2*kc - 365*a2**2*ka - 240*a2*b1*ka - 100*a2*b2*ka + 13*b1*b2*ka + 13*b2**2*ka - 91*b2**2*kc) + 91*df(x1,t,2)*df(x1,t)
**4*x1*x2**12*a1**12*(28*a1*ka - 26*a1*kc + 8*a2*ka - 31*a2*kc - 2*b1*ka - 7*b2*ka + 30*b2*kc) + df(x1,t,2)*df(x1,t)**4*
x1*x2**11*a1**11*vm*( - 1272*a1*ka + 990*a2*ka + 468*b1*ka + 676*b2*ka - 2093*b2*kc) + 210*df(x1,t,2)*df(x1,t)**4*x2**13
*a1**13*( - ka + kc) + 130*df(x1,t,2)*df(x1,t)**4*x2**12*a1**12*ka*vm + df(x1,t,2)*df(x1,t)**3*x1**14*a1**12*(2*a1**2*ka
 + 26*a1**2*kc + 91*a1*a2*ka - 819*a1*a2*kc - 28*a1*b1*ka - 42*a1*b2*ka + 770*a1*b2*kc + 364*a2**2*ka + 364*a2*b1*ka - 
364*b1*b2*ka - 364*b2**2*ka) + 7*df(x1,t,2)*df(x1,t)**3*x1**13*x2*a1**12*( - 8*a1**2*ka - 44*a1**2*kc - 182*a1*a2*ka + 
1521*a1*a2*kc + 52*a1*b1*ka + 91*a1*b2*ka - 1430*a1*b2*kc - 624*a2**2*ka - 624*a2*b1*ka + 624*b1*b2*ka + 624*b2**2*ka) +
 df(x1,t,2)*df(x1,t)**3*x1**13*a1**10*vm*( - 84*a1**2*a2*ka + 121*a1**2*b2*ka + 273*a1**2*b2*kc + 292*a1*a2**2*ka - 132*
a1*a2*b1*ka - 880*a1*a2*b2*ka - 162*a1*b1*b2*ka - 162*a1*b2**2*ka - 364*a1*b2**2*kc - 1780*a2**3*ka - 990*a2**2*b1*ka + 
1430*a2**2*b2*ka + 1320*a2*b1*b2*ka + 1320*a2*b2**2*ka) + 546*df(x1,t,2)*df(x1,t)**3*x1**12*x2**2*a1**12*(a1**2*ka + 3*
a1**2*kc + 15*a1*a2*ka - 117*a1*a2*kc - 4*a1*b1*ka - 8*a1*b2*ka + 110*a1*b2*kc + 44*a2**2*ka + 44*a2*b1*ka - 44*b1*b2*ka
 - 44*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**3*x1**12*x2*a1**10*vm*(4*a1**3*ka + 450*a1**2*a2*ka + 6*a1**2*b1*ka - 726*a1**2
*b2*ka - 1820*a1**2*b2*kc - 833*a1*a2**2*ka + 1056*a1*a2*b1*ka + 4708*a1*a2*b2*ka + 836*a1*b1*b2*ka + 836*a1*b2**2*ka + 
2002*a1*b2**2*kc + 8900*a2**3*ka + 4950*a2**2*b1*ka - 7150*a2**2*b2*ka - 6600*a2*b1*b2*ka - 6600*a2*b2**2*ka) + 182*df(
x1,t,2)*df(x1,t)**3*x1**11*x2**3*a1**12*( - 16*a1**2*ka - 28*a1**2*kc - 176*a1*a2*ka + 1287*a1*a2*kc + 44*a1*b1*ka + 99*
a1*b2*ka - 1210*a1*b2*kc - 440*a2**2*ka - 440*a2*b1*ka + 440*b1*b2*ka + 440*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**3*x1**11*
x2**2*a1**10*vm*( - 42*a1**3*ka - 2241*a1**2*a2*ka - 99*a1**2*b1*ka + 3861*a1**2*b2*ka + 11011*a1**2*b2*kc + 300*a1*a2**
2*ka - 6930*a1*a2*b1*ka - 22880*a1*a2*b2*ka - 3905*a1*b1*b2*ka - 3905*a1*b2**2*ka - 10010*a1*b2**2*kc - 40050*a2**3*ka -
 22275*a2**2*b1*ka + 32175*a2**2*b2*ka + 29700*a2*b1*b2*ka + 29700*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)**3*x1**10*x2
**4*a1**12*(2*a1**2*ka + 2*a1**2*kc + 17*a1*a2*ka - 117*a1*a2*kc - 4*a1*b1*ka - 10*a1*b2*ka + 110*a1*b2*kc + 36*a2**2*ka
 + 36*a2*b1*ka - 36*b1*b2*ka - 36*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**3*x1**10*x2**3*a1**10*vm*(188*a1**3*ka + 6900*a1**2
*a2*ka + 660*a1**2*b1*ka - 11990*a1**2*b2*ka - 40040*a1**2*b2*kc + 10695*a1*a2**2*ka + 25740*a1*a2*b1*ka + 66660*a1*a2*
b2*ka + 10890*a1*b1*b2*ka + 10890*a1*b2**2*ka + 30030*a1*b2**2*kc + 106800*a2**3*ka + 59400*a2**2*b1*ka - 85800*a2**2*b2
*ka - 79200*a2*b1*b2*ka - 79200*a2*b2**2*ka) + 3003*df(x1,t,2)*df(x1,t)**3*x1**9*x2**5*a1**12*( - 8*a1**2*ka - 4*a1**2*
kc - 54*a1*a2*ka + 351*a1*a2*kc + 12*a1*b1*ka + 33*a1*b2*ka - 330*a1*b2*kc - 96*a2**2*ka - 96*a2*b1*ka + 96*b1*b2*ka + 
96*b2**2*ka) + 15*df(x1,t,2)*df(x1,t)**3*x1**9*x2**4*a1**10*vm*( - 60*a1**3*ka - 1962*a1**2*a2*ka - 330*a1**2*b1*ka + 
3201*a1**2*b2*ka + 13013*a1**2*b2*kc - 5944*a1*a2**2*ka - 8184*a1*a2*b1*ka - 17248*a1*a2*b2*ka - 2684*a1*b1*b2*ka - 2684
*a1*b2**2*ka - 8008*a1*b2**2*kc - 24920*a2**3*ka - 13860*a2**2*b1*ka + 20020*a2**2*b2*ka + 18480*a2*b1*b2*ka + 18480*a2*
b2**2*ka) + 6006*df(x1,t,2)*df(x1,t)**3*x1**8*x2**6*a1**12*(7*a1**2*ka + a1**2*kc + 38*a1*a2*ka - 234*a1*a2*kc - 8*a1*b1
*ka - 24*a1*b2*ka + 220*a1*b2*kc + 56*a2**2*ka + 56*a2*b1*ka - 56*b1*b2*ka - 56*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**3*x1
**8*x2**5*a1**10*vm*(90*a1**3*ka + 3834*a1**2*a2*ka + 990*a1**2*b1*ka - 5346*a1**2*b2*ka - 28028*a1**2*b2*kc + 15813*a1*
a2**2*ka + 16632*a1*a2*b1*ka + 29260*a1*a2*b2*ka + 4312*a1*b1*b2*ka + 4312*a1*b2**2*ka + 14014*a1*b2**2*kc + 37380*a2**3
*ka + 20790*a2**2*b1*ka - 30030*a2**2*b2*ka - 27720*a2*b1*b2*ka - 27720*a2*b2**2*ka) + 1716*df(x1,t,2)*df(x1,t)**3*x1**7
*x2**7*a1**12*( - 32*a1**2*ka + 4*a1**2*kc - 140*a1*a2*ka + 819*a1*a2*kc + 28*a1*b1*ka + 91*a1*b2*ka - 770*a1*b2*kc - 
168*a2**2*ka - 168*a2*b1*ka + 168*b1*b2*ka + 168*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**3*x1**7*x2**6*a1**10*vm*(2*a1**3*ka
 - 4515*a1**2*a2*ka - 1617*a1**2*b1*ka + 4697*a1**2*b2*ka + 35035*a1**2*b2*kc - 21224*a1*a2**2*ka - 18942*a1*a2*b1*ka - 
28336*a1*a2*b2*ka - 3927*a1*b1*b2*ka - 3927*a1*b2**2*ka - 14014*a1*b2**2*kc - 31150*a2**3*ka - 17325*a2**2*b1*ka + 25025
*a2**2*b2*ka + 23100*a2*b1*b2*ka + 23100*a2*b2**2*ka) + 9009*df(x1,t,2)*df(x1,t)**3*x1**6*x2**8*a1**12*(6*a1**2*ka - 2*
a1**2*kc + 21*a1*a2*ka - 117*a1*a2*kc - 4*a1*b1*ka - 14*a1*b2*ka + 110*a1*b2*kc + 20*a2**2*ka + 20*a2*b1*ka - 20*b1*b2*
ka - 20*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**3*x1**6*x2**7*a1**10*vm*( - 196*a1**3*ka + 4032*a1**2*a2*ka + 1848*a1**2*b1*
ka - 2442*a1**2*b2*ka - 32032*a1**2*b2*kc + 19025*a1*a2**2*ka + 15180*a1*a2*b1*ka + 19580*a1*a2*b2*ka + 2530*a1*b1*b2*ka
 + 2530*a1*b2**2*ka + 10010*a1*b2**2*kc + 17800*a2**3*ka + 9900*a2**2*b1*ka - 14300*a2**2*b2*ka - 13200*a2*b1*b2*ka - 
13200*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)**3*x1**5*x2**9*a1**12*( - 8*a1**2*ka + 4*a1**2*kc - 22*a1*a2*ka + 117*a1*
a2*kc + 4*a1*b1*ka + 15*a1*b2*ka - 110*a1*b2*kc - 16*a2**2*ka - 16*a2*b1*ka + 16*b1*b2*ka + 16*b2**2*ka) + 3*df(x1,t,2)*
df(x1,t)**3*x1**5*x2**8*a1**10*vm*(1416*a1**3*ka - 10800*a1**2*a2*ka - 5940*a1**2*b1*ka + 1485*a1**2*b2*ka + 85085*a1**2
*b2*kc - 45780*a1*a2**2*ka - 33660*a1*a2*b1*ka - 37840*a1*a2*b2*ka - 4510*a1*b1*b2*ka - 4510*a1*b2**2*ka - 20020*a1*b2**
2*kc - 26700*a2**3*ka - 14850*a2**2*b1*ka + 21450*a2**2*b2*ka + 19800*a2*b1*b2*ka + 19800*a2*b2**2*ka) + 2002*df(x1,t,2)
*df(x1,t)**3*x1**4*x2**10*a1**12*(11*a1**2*ka - 7*a1**2*kc + 23*a1*a2*ka - 117*a1*a2*kc - 4*a1*b1*ka - 16*a1*b2*ka + 110
*a1*b2*kc + 12*a2**2*ka + 12*a2*b1*ka - 12*b1*b2*ka - 12*b2**2*ka) + 10*df(x1,t,2)*df(x1,t)**3*x1**4*x2**9*a1**10*vm*( -
 420*a1**3*ka + 1578*a1**2*a2*ka + 990*a1**2*b1*ka + 506*a1**2*b2*ka - 12012*a1**2*b2*kc + 5351*a1*a2**2*ka + 3696*a1*a2
*b1*ka + 3652*a1*a2*b2*ka + 396*a1*b1*b2*ka + 396*a1*b2**2*ka + 2002*a1*b2**2*kc + 1780*a2**3*ka + 990*a2**2*b1*ka - 
1430*a2**2*b2*ka - 1320*a2*b1*b2*ka - 1320*a2*b2**2*ka) + 546*df(x1,t,2)*df(x1,t)**3*x1**3*x2**11*a1**12*( - 16*a1**2*ka
 + 12*a1**2*kc - 24*a1*a2*ka + 117*a1*a2*kc + 4*a1*b1*ka + 17*a1*b2*ka - 110*a1*b2*kc - 8*a2**2*ka - 8*a2*b1*ka + 8*b1*
b2*ka + 8*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**3*x1**3*x2**10*a1**10*vm*(1310*a1**3*ka - 2637*a1**2*a2*ka - 1815*a1**2*b1*
ka - 1947*a1**2*b2*ka + 19019*a1**2*b2*kc - 6124*a1*a2**2*ka - 4026*a1*a2*b1*ka - 3520*a1*a2*b2*ka - 341*a1*b1*b2*ka - 
341*a1*b2**2*ka - 2002*a1*b2**2*kc - 890*a2**3*ka - 495*a2**2*b1*ka + 715*a2**2*b2*ka + 660*a2*b1*b2*ka + 660*a2*b2**2*
ka) + 91*df(x1,t,2)*df(x1,t)**3*x1**2*x2**12*a1**12*(26*a1**2*ka - 22*a1**2*kc + 25*a1*a2*ka - 117*a1*a2*kc - 4*a1*b1*ka
 - 18*a1*b2*ka + 110*a1*b2*kc + 4*a2**2*ka + 4*a2*b1*ka - 4*b1*b2*ka - 4*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**3*x1**2*x2**
11*a1**11*vm*( - 516*a1**2*ka + 540*a1*a2*ka + 396*a1*b1*ka + 594*a1*b2*ka - 3640*a1*b2*kc + 627*a2**2*ka + 396*a2*b1*ka
 + 308*a2*b2*ka + 26*b1*b2*ka + 26*b2**2*ka + 182*b2**2*kc) + 7*df(x1,t,2)*df(x1,t)**3*x1*x2**13*a1**13*( - 56*a1*ka + 
52*a1*kc - 26*a2*ka + 117*a2*kc + 4*b1*ka + 19*b2*ka - 110*b2*kc) + df(x1,t,2)*df(x1,t)**3*x1*x2**12*a1**12*vm*(236*a1*
ka - 102*a2*ka - 78*b1*ka - 143*b2*ka + 637*b2*kc) + 30*df(x1,t,2)*df(x1,t)**3*x2**14*a1**14*(ka - kc) - 24*df(x1,t,2)*
df(x1,t)**3*x2**13*a1**13*ka*vm + df(x1,t,2)*df(x1,t)**2*x1**15*a1**13*(2*a1**2*kc + 14*a1*a2*ka - 161*a1*a2*kc - 2*a1*
b1*ka - 3*a1*b2*ka + 150*a1*b2*kc + 91*a2**2*ka + 91*a2*b1*ka - 91*b1*b2*ka - 91*b2**2*ka) + df(x1,t,2)*df(x1,t)**2*x1**
14*x2*a1**13*( - 2*a1**2*ka - 26*a1**2*kc - 210*a1*a2*ka + 2254*a1*a2*kc + 28*a1*b1*ka + 56*a1*b2*ka - 2100*a1*b2*kc - 
1183*a2**2*ka - 1183*a2*b1*ka + 1183*b1*b2*ka + 1183*b2**2*ka) + df(x1,t,2)*df(x1,t)**2*x1**14*a1**11*vm*( - 11*a1**2*a2
*ka + 12*a1**2*b2*ka + 42*a1**2*b2*kc + 72*a1*a2**2*ka - 12*a1*a2*b1*ka - 144*a1*a2*b2*ka - 33*a1*b1*b2*ka - 33*a1*b2**2
*ka - 91*a1*b2**2*kc - 706*a2**3*ka - 330*a2**2*b1*ka + 528*a2**2*b2*ka + 396*a2*b1*b2*ka + 396*a2*b2**2*ka) + 7*df(x1,t
,2)*df(x1,t)**2*x1**13*x2**2*a1**13*(4*a1**2*ka + 22*a1**2*kc + 208*a1*a2*ka - 2093*a1*a2*kc - 26*a1*b1*ka - 65*a1*b2*ka
 + 1950*a1*b2*kc + 1014*a2**2*ka + 1014*a2*b1*ka - 1014*b1*b2*ka - 1014*b2**2*ka) + df(x1,t,2)*df(x1,t)**2*x1**13*x2*a1
**11*vm*(157*a1**2*a2*ka - 192*a1**2*b2*ka - 637*a1**2*b2*kc - 594*a1*a2**2*ka + 276*a1*a2*b1*ka + 1800*a1*a2*b2*ka + 
402*a1*b1*b2*ka + 402*a1*b2**2*ka + 1092*a1*b2**2*kc + 7766*a2**3*ka + 3630*a2**2*b1*ka - 5808*a2**2*b2*ka - 4356*a2*b1*
b2*ka - 4356*a2*b2**2*ka) + 182*df(x1,t,2)*df(x1,t)**2*x1**12*x2**3*a1**13*( - a1**2*ka - 3*a1**2*kc - 34*a1*a2*ka + 322
*a1*a2*kc + 4*a1*b1*ka + 12*a1*b2*ka - 300*a1*b2*kc - 143*a2**2*ka - 143*a2*b1*ka + 143*b1*b2*ka + 143*b2**2*ka) + 2*df(
x1,t,2)*df(x1,t)**2*x1**12*x2**2*a1**11*vm*( - a1**3*ka - 495*a1**2*a2*ka - 3*a1**2*b1*ka + 651*a1**2*b2*ka + 2184*a1**2
*b2*kc + 891*a1*a2**2*ka - 1122*a1*a2*b1*ka - 5148*a1*a2*b2*ka - 1122*a1*b1*b2*ka - 1122*a1*b2**2*ka - 3003*a1*b2**2*kc 
- 19415*a2**3*ka - 9075*a2**2*b1*ka + 14520*a2**2*b2*ka + 10890*a2*b1*b2*ka + 10890*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t
)**2*x1**11*x2**4*a1**13*(8*a1**2*ka + 14*a1**2*kc + 198*a1*a2*ka - 1771*a1*a2*kc - 22*a1*b1*ka - 77*a1*b2*ka + 1650*a1*
b2*kc + 715*a2**2*ka + 715*a2*b1*ka - 715*b1*b2*ka - 715*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**2*x1**11*x2**3*a1**11*vm*(10
*a1**3*ka + 1837*a1**2*a2*ka + 33*a1**2*b1*ka - 2541*a1**2*b2*ka - 9009*a1**2*b2*kc - 495*a1*a2**2*ka + 4950*a1*a2*b1*ka
 + 17820*a1*a2*b2*ka + 3795*a1*b1*b2*ka + 3795*a1*b2**2*ka + 10010*a1*b2**2*kc + 58245*a2**3*ka + 27225*a2**2*b1*ka - 
43560*a2**2*b2*ka - 32670*a2*b1*b2*ka - 32670*a2*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)**2*x1**10*x2**5*a1**13*( - 2*a1**2
*ka - 2*a1**2*kc - 38*a1*a2*ka + 322*a1*a2*kc + 4*a1*b1*ka + 16*a1*b2*ka - 300*a1*b2*kc - 117*a2**2*ka - 117*a2*b1*ka + 
117*b1*b2*ka + 117*b2**2*ka) + 11*df(x1,t,2)*df(x1,t)**2*x1**10*x2**4*a1**11*vm*( - 8*a1**3*ka - 815*a1**2*a2*ka - 30*a1
**2*b1*ka + 1170*a1**2*b2*ka + 4550*a1**2*b2*kc - 810*a1*a2**2*ka - 2520*a1*a2*b1*ka - 7560*a1*a2*b2*ka - 1575*a1*b1*b2*
ka - 1575*a1*b2**2*ka - 4095*a1*b2**2*kc - 21180*a2**3*ka - 9900*a2**2*b1*ka + 15840*a2**2*b2*ka + 11880*a2*b1*b2*ka + 
11880*a2*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)**2*x1**9*x2**6*a1**13*(4*a1**2*ka + 2*a1**2*kc + 60*a1*a2*ka - 483*a1*a2*
kc - 6*a1*b1*ka - 27*a1*b2*ka + 450*a1*b2*kc + 156*a2**2*ka + 156*a2*b1*ka - 156*b1*b2*ka - 156*b2**2*ka) + 11*df(x1,t,2
)*df(x1,t)**2*x1**9*x2**5*a1**11*vm*(20*a1**3*ka + 1377*a1**2*a2*ka + 90*a1**2*b1*ka - 2034*a1**2*b2*ka - 9009*a1**2*b2*
kc + 2916*a1*a2**2*ka + 4824*a1*a2*b1*ka + 12528*a1*a2*b2*ka + 2556*a1*b1*b2*ka + 2556*a1*b2**2*ka + 6552*a1*b2**2*kc + 
29652*a2**3*ka + 13860*a2**2*b1*ka - 22176*a2**2*b2*ka - 16632*a2*b1*b2*ka - 16632*a2*b2**2*ka) + 858*df(x1,t,2)*df(x1,t
)**2*x1**8*x2**7*a1**13*( - 7*a1**2*ka - a1**2*kc - 84*a1*a2*ka + 644*a1*a2*kc + 8*a1*b1*ka + 40*a1*b2*ka - 600*a1*b2*kc
 - 182*a2**2*ka - 182*a2*b1*ka + 182*b1*b2*ka + 182*b2**2*ka) + 66*df(x1,t,2)*df(x1,t)**2*x1**8*x2**6*a1**11*vm*( - 5*a1
**3*ka - 274*a1**2*a2*ka - 30*a1**2*b1*ka + 414*a1**2*b2*ka + 2184*a1**2*b2*kc - 882*a1*a2**2*ka - 1092*a1*a2*b1*ka - 
2520*a1*a2*b2*ka - 504*a1*b1*b2*ka - 504*a1*b2**2*ka - 1274*a1*b2**2*kc - 4942*a2**3*ka - 2310*a2**2*b1*ka + 3696*a2**2*
b2*ka + 2772*a2*b1*b2*ka + 2772*a2*b2**2*ka) + 429*df(x1,t,2)*df(x1,t)**2*x1**7*x2**8*a1**13*(16*a1**2*ka - 2*a1**2*kc +
 154*a1*a2*ka - 1127*a1*a2*kc - 14*a1*b1*ka - 77*a1*b2*ka + 1050*a1*b2*kc + 273*a2**2*ka + 273*a2*b1*ka - 273*b1*b2*ka -
 273*b2**2*ka) + 132*df(x1,t,2)*df(x1,t)**2*x1**7*x2**7*a1**11*vm*(2*a1**3*ka + 115*a1**2*a2*ka + 21*a1**2*b1*ka - 177*
a1**2*b2*ka - 1183*a1**2*b2*kc + 513*a1*a2**2*ka + 534*a1*a2*b1*ka + 1116*a1*a2*b2*ka + 219*a1*b1*b2*ka + 219*a1*b2**2*
ka + 546*a1*b2**2*kc + 1765*a2**3*ka + 825*a2**2*b1*ka - 1320*a2**2*b2*ka - 990*a2*b1*b2*ka - 990*a2*b2**2*ka) + 1001*df
(x1,t,2)*df(x1,t)**2*x1**6*x2**9*a1**13*( - 6*a1**2*ka + 2*a1**2*kc - 46*a1*a2*ka + 322*a1*a2*kc + 4*a1*b1*ka + 24*a1*b2
*ka - 300*a1*b2*kc - 65*a2**2*ka - 65*a2*b1*ka + 65*b1*b2*ka + 65*b2**2*ka) + 33*df(x1,t,2)*df(x1,t)**2*x1**6*x2**8*a1**
11*vm*( - 261*a1**2*a2*ka - 84*a1**2*b1*ka + 408*a1**2*b2*ka + 3822*a1**2*b2*kc - 1620*a1*a2**2*ka - 1500*a1*a2*b1*ka - 
2880*a1*a2*b2*ka - 555*a1*b1*b2*ka - 555*a1*b2**2*ka - 1365*a1*b2**2*kc - 3530*a2**3*ka - 1650*a2**2*b1*ka + 2640*a2**2*
b2*ka + 1980*a2*b1*b2*ka + 1980*a2*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)**2*x1**5*x2**10*a1**13*(4*a1**2*ka - 2*a1**2*kc 
+ 24*a1*a2*ka - 161*a1*a2*kc - 2*a1*b1*ka - 13*a1*b2*ka + 150*a1*b2*kc + 26*a2**2*ka + 26*a2*b1*ka - 26*b1*b2*ka - 26*b2
**2*ka) + 11*df(x1,t,2)*df(x1,t)**2*x1**5*x2**9*a1**11*vm*( - 24*a1**3*ka + 265*a1**2*a2*ka + 180*a1**2*b1*ka - 420*a1**
2*b2*ka - 6825*a1**2*b2*kc + 2610*a1*a2**2*ka + 2220*a1*a2*b1*ka + 3960*a1*a2*b2*ka + 750*a1*b1*b2*ka + 750*a1*b2**2*ka 
+ 1820*a1*b2**2*kc + 3530*a2**3*ka + 1650*a2**2*b1*ka - 2640*a2**2*b2*ka - 1980*a2*b1*b2*ka - 1980*a2*b2**2*ka) + 182*df
(x1,t,2)*df(x1,t)**2*x1**4*x2**11*a1**13*( - 11*a1**2*ka + 7*a1**2*kc - 50*a1*a2*ka + 322*a1*a2*kc + 4*a1*b1*ka + 28*a1*
b2*ka - 300*a1*b2*kc - 39*a2**2*ka - 39*a2*b1*ka + 39*b1*b2*ka + 39*b2**2*ka) + 22*df(x1,t,2)*df(x1,t)**2*x1**4*x2**10*
a1**11*vm*(15*a1**3*ka - 13*a1**2*a2*ka - 45*a1**2*b1*ka + 21*a1**2*b2*ka + 1456*a1**2*b2*kc - 459*a1*a2**2*ka - 366*a1*
a2*b1*ka - 612*a1*a2*b2*ka - 114*a1*b1*b2*ka - 114*a1*b2**2*ka - 273*a1*b2**2*kc - 353*a2**3*ka - 165*a2**2*b1*ka + 264*
a2**2*b2*ka + 198*a2*b1*b2*ka + 198*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)**2*x1**3*x2**12*a1**13*(8*a1**2*ka - 6*a1**2*
kc + 26*a1*a2*ka - 161*a1*a2*kc - 2*a1*b1*ka - 15*a1*b2*ka + 150*a1*b2*kc + 13*a2**2*ka + 13*a2*b1*ka - 13*b1*b2*ka - 13
*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**2*x1**3*x2**11*a1**11*vm*( - 110*a1**3*ka - 99*a1**2*a2*ka + 165*a1**2*b1*ka + 159*
a1**2*b2*ka - 4641*a1**2*b2*kc + 1053*a1*a2**2*ka + 798*a1*a2*b1*ka + 1260*a1*a2*b2*ka + 231*a1*b1*b2*ka + 231*a1*b2**2*
ka + 546*a1*b2**2*kc + 353*a2**3*ka + 165*a2**2*b1*ka - 264*a2**2*b2*ka - 198*a2*b1*b2*ka - 198*a2*b2**2*ka) + 7*df(x1,t
,2)*df(x1,t)**2*x1**2*x2**13*a1**13*( - 26*a1**2*ka + 22*a1**2*kc - 54*a1*a2*ka + 322*a1*a2*kc + 4*a1*b1*ka + 32*a1*b2*
ka - 300*a1*b2*kc - 13*a2**2*ka - 13*a2*b1*ka + 13*b1*b2*ka + 13*b2**2*ka) + df(x1,t,2)*df(x1,t)**2*x1**2*x2**12*a1**12*
vm*(88*a1**2*ka + 85*a1*a2*ka - 66*a1*b1*ka - 138*a1*b2*ka + 1638*a1*b2*kc - 198*a2**2*ka - 144*a2*b1*ka - 216*a2*b2*ka 
- 39*b1*b2*ka - 39*b2**2*ka - 91*b2**2*kc) + df(x1,t,2)*df(x1,t)**2*x1*x2**14*a1**14*(28*a1*ka - 26*a1*kc + 28*a2*ka - 
161*a2*kc - 2*b1*ka - 17*b2*ka + 150*b2*kc) + df(x1,t,2)*df(x1,t)**2*x1*x2**13*a1**13*vm*( - 20*a1*ka - 11*a2*ka + 6*b1*
ka + 18*b2*ka - 133*b2*kc) + 2*df(x1,t,2)*df(x1,t)**2*x2**15*a1**15*( - ka + kc) + 2*df(x1,t,2)*df(x1,t)**2*x2**14*a1**
14*ka*vm + df(x1,t,2)*df(x1,t)*x1**16*a1**14*(a1*a2*ka - 19*a1*a2*kc + 18*a1*b2*kc + 14*a2**2*ka + 14*a2*b1*ka - 14*b1*
b2*ka - 14*b2**2*ka) + df(x1,t,2)*df(x1,t)*x1**15*x2*a1**14*( - 16*a1*a2*ka + 285*a1*a2*kc + a1*b2*ka - 270*a1*b2*kc - 
196*a2**2*ka - 196*a2*b1*ka + 196*b1*b2*ka + 196*b2**2*ka) + df(x1,t,2)*df(x1,t)*x1**15*a1**12*vm*(3*a1**2*b2*kc - 2*a1*
a2*b2*ka - 3*a1*b1*b2*ka - 3*a1*b2**2*ka - 14*a1*b2**2*kc - 164*a2**3*ka - 66*a2**2*b1*ka + 114*a2**2*b2*ka + 72*a2*b1*
b2*ka + 72*a2*b2**2*ka) + 7*df(x1,t,2)*df(x1,t)*x1**14*x2**2*a1**14*(17*a1*a2*ka - 285*a1*a2*kc - 2*a1*b2*ka + 270*a1*b2
*kc + 182*a2**2*ka + 182*a2*b1*ka - 182*b1*b2*ka - 182*b2**2*ka) + df(x1,t,2)*df(x1,t)*x1**14*x2*a1**12*vm*(6*a1**2*a2*
ka - 6*a1**2*b2*ka - 56*a1**2*b2*kc + a1*a2**2*ka + 12*a1*a2*b1*ka + 68*a1*a2*b2*ka + 46*a1*b1*b2*ka + 46*a1*b2**2*ka + 
182*a1*b2**2*kc + 1968*a2**3*ka + 792*a2**2*b1*ka - 1368*a2**2*b2*ka - 864*a2*b1*b2*ka - 864*a2*b2**2*ka) + 91*df(x1,t,2
)*df(x1,t)*x1**13*x2**3*a1**14*( - 6*a1*a2*ka + 95*a1*a2*kc + a1*b2*ka - 90*a1*b2*kc - 56*a2**2*ka - 56*a2*b1*ka + 56*b1
*b2*ka + 56*b2**2*ka) + df(x1,t,2)*df(x1,t)*x1**13*x2**2*a1**12*vm*( - 69*a1**2*a2*ka + 71*a1**2*b2*ka + 455*a1**2*b2*kc
 - 12*a1*a2**2*ka - 144*a1*a2*b1*ka - 660*a1*a2*b2*ka - 318*a1*b1*b2*ka - 318*a1*b2**2*ka - 1092*a1*b2**2*kc - 10824*a2
**3*ka - 4356*a2**2*b1*ka + 7524*a2**2*b2*ka + 4752*a2*b1*b2*ka + 4752*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)*x1**12*x2**
4*a1**14*(19*a1*a2*ka - 285*a1*a2*kc - 4*a1*b2*ka + 270*a1*b2*kc + 154*a2**2*ka + 154*a2*b1*ka - 154*b1*b2*ka - 154*b2**
2*ka) + 2*df(x1,t,2)*df(x1,t)*x1**12*x2**3*a1**12*vm*(180*a1**2*a2*ka - 192*a1**2*b2*ka - 1092*a1**2*b2*kc + 33*a1*a2**2
*ka + 396*a1*a2*b1*ka + 1672*a1*a2*b2*ka + 660*a1*b1*b2*ka + 660*a1*b2**2*ka + 2002*a1*b2**2*kc + 18040*a2**3*ka + 7260*
a2**2*b1*ka - 12540*a2**2*b2*ka - 7920*a2*b1*b2*ka - 7920*a2*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)*x1**11*x2**5*a1**14*( 
- 4*a1*a2*ka + 57*a1*a2*kc + a1*b2*ka - 54*a1*b2*kc - 28*a2**2*ka - 28*a2*b1*ka + 28*b1*b2*ka + 28*b2**2*ka) + 11*df(x1,
t,2)*df(x1,t)*x1**11*x2**4*a1**12*vm*( - 102*a1**2*a2*ka + 114*a1**2*b2*ka + 637*a1**2*b2*kc - 20*a1*a2**2*ka - 240*a1*
a2*b1*ka - 970*a1*a2*b2*ka - 335*a1*b1*b2*ka - 335*a1*b2**2*ka - 910*a1*b2**2*kc - 7380*a2**3*ka - 2970*a2**2*b1*ka + 
5130*a2**2*b2*ka + 3240*a2*b1*b2*ka + 3240*a2*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)*x1**10*x2**6*a1**14*(7*a1*a2*ka - 95*
a1*a2*kc - 2*a1*b2*ka + 90*a1*b2*kc + 42*a2**2*ka + 42*a2*b1*ka - 42*b1*b2*ka - 42*b2**2*ka) + 11*df(x1,t,2)*df(x1,t)*x1
**10*x2**5*a1**12*vm*(210*a1**2*a2*ka - 250*a1**2*b2*ka - 1456*a1**2*b2*kc + 45*a1*a2**2*ka + 540*a1*a2*b1*ka + 2124*a1*
a2*b2*ka + 666*a1*b1*b2*ka + 666*a1*b2**2*ka + 1638*a1*b2**2*kc + 11808*a2**3*ka + 4752*a2**2*b1*ka - 8208*a2**2*b2*ka -
 5184*a2*b1*b2*ka - 5184*a2*b2**2*ka) + 429*df(x1,t,2)*df(x1,t)*x1**9*x2**7*a1**14*( - 22*a1*a2*ka + 285*a1*a2*kc + 7*a1
*b2*ka - 270*a1*b2*kc - 112*a2**2*ka - 112*a2*b1*ka + 112*b1*b2*ka + 112*b2**2*ka) + 33*df(x1,t,2)*df(x1,t)*x1**9*x2**6*
a1**12*vm*( - 99*a1**2*a2*ka + 129*a1**2*b2*ka + 819*a1**2*b2*kc - 24*a1*a2**2*ka - 288*a1*a2*b1*ka - 1112*a1*a2*b2*ka -
 324*a1*b1*b2*ka - 324*a1*b2**2*ka - 728*a1*b2**2*kc - 4592*a2**3*ka - 1848*a2**2*b1*ka + 3192*a2**2*b2*ka + 2016*a2*b1*
b2*ka + 2016*a2*b2**2*ka) + 429*df(x1,t,2)*df(x1,t)*x1**8*x2**8*a1**14*(23*a1*a2*ka - 285*a1*a2*kc - 8*a1*b2*ka + 270*a1
*b2*kc + 98*a2**2*ka + 98*a2*b1*ka - 98*b1*b2*ka - 98*b2**2*ka) + 132*df(x1,t,2)*df(x1,t)*x1**8*x2**7*a1**12*vm*(24*a1**
2*a2*ka - 36*a1**2*b2*ka - 260*a1**2*b2*kc + 7*a1*a2**2*ka + 84*a1*a2*b1*ka + 320*a1*a2*b2*ka + 88*a1*b1*b2*ka + 88*a1*
b2**2*ka + 182*a1*b2**2*kc + 984*a2**3*ka + 396*a2**2*b1*ka - 684*a2**2*b2*ka - 432*a2*b1*b2*ka - 432*a2*b2**2*ka) + 
1001*df(x1,t,2)*df(x1,t)*x1**7*x2**9*a1**14*( - 8*a1*a2*ka + 95*a1*a2*kc + 3*a1*b2*ka - 90*a1*b2*kc - 28*a2**2*ka - 28*
a2*b1*ka + 28*b1*b2*ka + 28*b2**2*ka) + 33*df(x1,t,2)*df(x1,t)*x1**7*x2**8*a1**12*vm*( - 60*a1**2*a2*ka + 116*a1**2*b2*
ka + 1001*a1**2*b2*kc - 24*a1*a2**2*ka - 288*a1*a2*b1*ka - 1086*a1*a2*b2*ka - 285*a1*b1*b2*ka - 285*a1*b2**2*ka - 546*a1
*b2**2*kc - 2460*a2**3*ka - 990*a2**2*b1*ka + 1710*a2**2*b2*ka + 1080*a2*b1*b2*ka + 1080*a2*b2**2*ka) + 1001*df(x1,t,2)*
df(x1,t)*x1**6*x2**10*a1**14*(5*a1*a2*ka - 57*a1*a2*kc - 2*a1*b2*ka + 54*a1*b2*kc + 14*a2**2*ka + 14*a2*b1*ka - 14*b1*b2
*ka - 14*b2**2*ka) + 11*df(x1,t,2)*df(x1,t)*x1**6*x2**9*a1**12*vm*(54*a1**2*a2*ka - 198*a1**2*b2*ka - 2184*a1**2*b2*kc +
 45*a1*a2**2*ka + 540*a1*a2*b1*ka + 2020*a1*a2*b2*ka + 510*a1*b1*b2*ka + 510*a1*b2**2*ka + 910*a1*b2**2*kc + 3280*a2**3*
ka + 1320*a2**2*b1*ka - 2280*a2**2*b2*ka - 1440*a2*b1*b2*ka - 1440*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)*x1**5*x2**11*a1
**14*( - 26*a1*a2*ka + 285*a1*a2*kc + 11*a1*b2*ka - 270*a1*b2*kc - 56*a2**2*ka - 56*a2*b1*ka + 56*b1*b2*ka + 56*b2**2*ka
) + 11*df(x1,t,2)*df(x1,t)*x1**5*x2**10*a1**12*vm*(15*a1**2*a2*ka + 75*a1**2*b2*ka + 1183*a1**2*b2*kc - 20*a1*a2**2*ka -
 240*a1*a2*b1*ka - 892*a1*a2*b2*ka - 218*a1*b1*b2*ka - 218*a1*b2**2*ka - 364*a1*b2**2*kc - 984*a2**3*ka - 396*a2**2*b1*
ka + 684*a2**2*b2*ka + 432*a2*b1*b2*ka + 432*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)*x1**4*x2**12*a1**14*(9*a1*a2*ka - 95*
a1*a2*kc - 4*a1*b2*ka + 90*a1*b2*kc + 14*a2**2*ka + 14*a2*b1*ka - 14*b1*b2*ka - 14*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)*x1
**4*x2**11*a1**12*vm*( - 132*a1**2*a2*ka - 88*a1**2*b2*ka - 2548*a1**2*b2*kc + 33*a1*a2**2*ka + 396*a1*a2*b1*ka + 1464*
a1*a2*b2*ka + 348*a1*b1*b2*ka + 348*a1*b2**2*ka + 546*a1*b2**2*kc + 984*a2**3*ka + 396*a2**2*b1*ka - 684*a2**2*b2*ka - 
432*a2*b1*b2*ka - 432*a2*b2**2*ka) + 7*df(x1,t,2)*df(x1,t)*x1**3*x2**13*a1**14*( - 28*a1*a2*ka + 285*a1*a2*kc + 13*a1*b2
*ka - 270*a1*b2*kc - 28*a2**2*ka - 28*a2*b1*ka + 28*b1*b2*ka + 28*b2**2*ka) + df(x1,t,2)*df(x1,t)*x1**3*x2**12*a1**12*vm
*(126*a1**2*a2*ka + 6*a1**2*b2*ka + 1365*a1**2*b2*kc - 12*a1*a2**2*ka - 144*a1*a2*b1*ka - 530*a1*a2*b2*ka - 123*a1*b1*b2
*ka - 123*a1*b2**2*ka - 182*a1*b2**2*kc - 164*a2**3*ka - 66*a2**2*b1*ka + 114*a2**2*b2*ka + 72*a2*b1*b2*ka + 72*a2*b2**2
*ka) + df(x1,t,2)*df(x1,t)*x1**2*x2**14*a1**14*(29*a1*a2*ka - 285*a1*a2*kc - 14*a1*b2*ka + 270*a1*b2*kc + 14*a2**2*ka + 
14*a2*b1*ka - 14*b1*b2*ka - 14*b2**2*ka) + df(x1,t,2)*df(x1,t)*x1**2*x2**13*a1**13*vm*( - 30*a1*a2*ka + 6*a1*b2*ka - 224
*a1*b2*kc + a2**2*ka + 12*a2*b1*ka + 44*a2*b2*ka + 10*b1*b2*ka + 10*b2**2*ka + 14*b2**2*kc) + df(x1,t,2)*df(x1,t)*x1*x2
**15*a1**15*( - 2*a2*ka + 19*a2*kc + b2*ka - 18*b2*kc) + df(x1,t,2)*df(x1,t)*x1*x2**14*a1**14*vm*(3*a2*ka - b2*ka + 17*
b2*kc) + df(x1,t,2)*x1**17*a1**15*( - a1*a2*kc + a1*b2*kc + a2**2*ka + a2*b1*ka - b1*b2*ka - b2**2*ka) + df(x1,t,2)*x1**
16*x2*a1**15*(16*a1*a2*kc - 16*a1*b2*kc - 15*a2**2*ka - 15*a2*b1*ka + 15*b1*b2*ka + 15*b2**2*ka) + df(x1,t,2)*x1**16*a1
**13*vm*( - 2*a1*a2**2*ka + 2*a1*a2*b2*ka - a1*b2**2*kc - 17*a2**3*ka - 6*a2**2*b1*ka + 11*a2**2*b2*ka + 6*a2*b1*b2*ka +
 6*a2*b2**2*ka) + 15*df(x1,t,2)*x1**15*x2**2*a1**15*( - 8*a1*a2*kc + 8*a1*b2*kc + 7*a2**2*ka + 7*a2*b1*ka - 7*b1*b2*ka -
 7*b2**2*ka) + df(x1,t,2)*x1**15*x2*a1**13*vm*( - a1**2*b2*kc + 23*a1*a2**2*ka - 22*a1*a2*b2*ka + a1*b1*b2*ka + a1*b2**2
*ka + 14*a1*b2**2*kc + 221*a2**3*ka + 78*a2**2*b1*ka - 143*a2**2*b2*ka - 78*a2*b1*b2*ka - 78*a2*b2**2*ka) + 35*df(x1,t,2
)*x1**14*x2**3*a1**15*(16*a1*a2*kc - 16*a1*b2*kc - 13*a2**2*ka - 13*a2*b1*ka + 13*b1*b2*ka + 13*b2**2*ka) + df(x1,t,2)*
x1**14*x2**2*a1**13*vm*(14*a1**2*b2*kc - 117*a1*a2**2*ka + 104*a1*a2*b2*ka - 13*a1*b1*b2*ka - 13*a1*b2**2*ka - 91*a1*b2
**2*kc - 1326*a2**3*ka - 468*a2**2*b1*ka + 858*a2**2*b2*ka + 468*a2*b1*b2*ka + 468*a2*b2**2*ka) + 455*df(x1,t,2)*x1**13*
x2**4*a1**15*( - 4*a1*a2*kc + 4*a1*b2*kc + 3*a2**2*ka + 3*a2*b1*ka - 3*b1*b2*ka - 3*b2**2*ka) + 13*df(x1,t,2)*x1**13*x2
**3*a1**13*vm*( - 7*a1**2*b2*kc + 26*a1*a2**2*ka - 20*a1*a2*b2*ka + 6*a1*b1*b2*ka + 6*a1*b2**2*ka + 28*a1*b2**2*kc + 374
*a2**3*ka + 132*a2**2*b1*ka - 242*a2**2*b2*ka - 132*a2*b1*b2*ka - 132*a2*b2**2*ka) + 273*df(x1,t,2)*x1**12*x2**5*a1**15*
(16*a1*a2*kc - 16*a1*b2*kc - 11*a2**2*ka - 11*a2*b1*ka + 11*b1*b2*ka + 11*b2**2*ka) + 13*df(x1,t,2)*x1**12*x2**4*a1**13*
vm*(28*a1**2*b2*kc - 44*a1*a2**2*ka + 22*a1*a2*b2*ka - 22*a1*b1*b2*ka - 22*a1*b2**2*ka - 77*a1*b2**2*kc - 935*a2**3*ka -
 330*a2**2*b1*ka + 605*a2**2*b2*ka + 330*a2*b1*b2*ka + 330*a2*b2**2*ka) + 1001*df(x1,t,2)*x1**11*x2**6*a1**15*( - 8*a1*
a2*kc + 8*a1*b2*kc + 5*a2**2*ka + 5*a2*b1*ka - 5*b1*b2*ka - 5*b2**2*ka) + 143*df(x1,t,2)*x1**11*x2**5*a1**13*vm*( - 7*a1
**2*b2*kc + 3*a1*a2**2*ka + 2*a1*a2*b2*ka + 5*a1*b1*b2*ka + 5*a1*b2**2*ka + 14*a1*b2**2*kc + 153*a2**3*ka + 54*a2**2*b1*
ka - 99*a2**2*b2*ka - 54*a2*b1*b2*ka - 54*a2*b2**2*ka) + 715*df(x1,t,2)*x1**10*x2**7*a1**15*(16*a1*a2*kc - 16*a1*b2*kc -
 9*a2**2*ka - 9*a2*b1*ka + 9*b1*b2*ka + 9*b2**2*ka) + 143*df(x1,t,2)*x1**10*x2**6*a1**13*vm*(14*a1**2*b2*kc + 3*a1*a2**2
*ka - 12*a1*a2*b2*ka - 9*a1*b1*b2*ka - 9*a1*b2**2*ka - 21*a1*b2**2*kc - 204*a2**3*ka - 72*a2**2*b1*ka + 132*a2**2*b2*ka 
+ 72*a2*b1*b2*ka + 72*a2*b2**2*ka) + 6435*df(x1,t,2)*x1**9*x2**8*a1**15*( - 2*a1*a2*kc + 2*a1*b2*kc + a2**2*ka + a2*b1*
ka - b1*b2*ka - b2**2*ka) + 429*df(x1,t,2)*x1**9*x2**7*a1**13*vm*( - 7*a1**2*b2*kc - 4*a1*a2**2*ka + 8*a1*a2*b2*ka + 4*
a1*b1*b2*ka + 4*a1*b2**2*ka + 8*a1*b2**2*kc + 68*a2**3*ka + 24*a2**2*b1*ka - 44*a2**2*b2*ka - 24*a2*b1*b2*ka - 24*a2*b2
**2*ka) + 715*df(x1,t,2)*x1**8*x2**9*a1**15*(16*a1*a2*kc - 16*a1*b2*kc - 7*a2**2*ka - 7*a2*b1*ka + 7*b1*b2*ka + 7*b2**2*
ka) + 429*df(x1,t,2)*x1**8*x2**8*a1**13*vm*(8*a1**2*b2*kc + 6*a1*a2**2*ka - 10*a1*a2*b2*ka - 4*a1*b1*b2*ka - 4*a1*b2**2*
ka - 7*a1*b2**2*kc - 51*a2**3*ka - 18*a2**2*b1*ka + 33*a2**2*b2*ka + 18*a2*b1*b2*ka + 18*a2*b2**2*ka) + 1001*df(x1,t,2)*
x1**7*x2**10*a1**15*( - 8*a1*a2*kc + 8*a1*b2*kc + 3*a2**2*ka + 3*a2*b1*ka - 3*b1*b2*ka - 3*b2**2*ka) + 143*df(x1,t,2)*x1
**7*x2**9*a1**13*vm*( - 21*a1**2*b2*kc - 17*a1*a2**2*ka + 26*a1*a2*b2*ka + 9*a1*b1*b2*ka + 9*a1*b2**2*ka + 14*a1*b2**2*
kc + 85*a2**3*ka + 30*a2**2*b1*ka - 55*a2**2*b2*ka - 30*a2*b1*b2*ka - 30*a2*b2**2*ka) + 273*df(x1,t,2)*x1**6*x2**11*a1**
15*(16*a1*a2*kc - 16*a1*b2*kc - 5*a2**2*ka - 5*a2*b1*ka + 5*b1*b2*ka + 5*b2**2*ka) + 143*df(x1,t,2)*x1**6*x2**10*a1**13*
vm*(14*a1**2*b2*kc + 11*a1*a2**2*ka - 16*a1*a2*b2*ka - 5*a1*b1*b2*ka - 5*a1*b2**2*ka - 7*a1*b2**2*kc - 34*a2**3*ka - 12*
a2**2*b1*ka + 22*a2**2*b2*ka + 12*a2*b1*b2*ka + 12*a2*b2**2*ka) + 455*df(x1,t,2)*x1**5*x2**12*a1**15*( - 4*a1*a2*kc + 4*
a1*b2*kc + a2**2*ka + a2*b1*ka - b1*b2*ka - b2**2*ka) + 13*df(x1,t,2)*x1**5*x2**11*a1**13*vm*( - 77*a1**2*b2*kc - 54*a1*
a2**2*ka + 76*a1*a2*b2*ka + 22*a1*b1*b2*ka + 22*a1*b2**2*ka + 28*a1*b2**2*kc + 102*a2**3*ka + 36*a2**2*b1*ka - 66*a2**2*
b2*ka - 36*a2*b1*b2*ka - 36*a2*b2**2*ka) + 35*df(x1,t,2)*x1**4*x2**13*a1**15*(16*a1*a2*kc - 16*a1*b2*kc - 3*a2**2*ka - 3
*a2*b1*ka + 3*b1*b2*ka + 3*b2**2*ka) + 13*df(x1,t,2)*x1**4*x2**12*a1**13*vm*(28*a1**2*b2*kc + 16*a1*a2**2*ka - 22*a1*a2*
b2*ka - 6*a1*b1*b2*ka - 6*a1*b2**2*ka - 7*a1*b2**2*kc - 17*a2**3*ka - 6*a2**2*b1*ka + 11*a2**2*b2*ka + 6*a2*b1*b2*ka + 6
*a2*b2**2*ka) + 15*df(x1,t,2)*x1**3*x2**14*a1**15*( - 8*a1*a2*kc + 8*a1*b2*kc + a2**2*ka + a2*b1*ka - b1*b2*ka - b2**2*
ka) + df(x1,t,2)*x1**3*x2**13*a1**13*vm*( - 91*a1**2*b2*kc - 37*a1*a2**2*ka + 50*a1*a2*b2*ka + 13*a1*b1*b2*ka + 13*a1*b2
**2*ka + 14*a1*b2**2*kc + 17*a2**3*ka + 6*a2**2*b1*ka - 11*a2**2*b2*ka - 6*a2*b1*b2*ka - 6*a2*b2**2*ka) + df(x1,t,2)*x1
**2*x2**15*a1**15*(16*a1*a2*kc - 16*a1*b2*kc - a2**2*ka - a2*b1*ka + b1*b2*ka + b2**2*ka) + df(x1,t,2)*x1**2*x2**14*a1**
14*vm*(14*a1*b2*kc + 3*a2**2*ka - 4*a2*b2*ka - b1*b2*ka - b2**2*ka - b2**2*kc) + df(x1,t,2)*x1*x2**16*a1**16*kc*( - a2 +
 b2) - df(x1,t,2)*x1*x2**15*a1**15*b2*kc*vm + 2*df(x1,t)**18*( - a1*kc + b1*ka + b2*ka - b2*kc) + df(x1,t)**17*x1*( - 28
*a1**2*kc + 3*a1*a2*kc + 28*a1*b1*ka + 28*a1*b2*ka - 30*a1*b2*kc - b1*b2*ka - b2**2*ka + b2**2*kc) + 2*df(x1,t)**17*x2*
a1*(15*a1*kc - a2*kc - 15*b1*ka - 15*b2*ka + 16*b2*kc) + 2*df(x1,t)**17*vm*( - 2*a1*ka + b1*ka + b2*ka - b2*kc) + df(x1,
t)**16*x1**2*a1*( - 182*a1**2*kc + 41*a1*a2*kc + 182*a1*b1*ka + 182*a1*b2*ka - 210*a1*b2*kc - a2**2*kc + a2*b1*ka + a2*
b2*ka - 2*a2*b2*kc - 14*b1*b2*ka - 14*b2**2*ka + 16*b2**2*kc) + df(x1,t)**16*x1*x2*a1*(392*a1**2*kc - 71*a1*a2*kc - 392*
a1*b1*ka - 392*a1*b2*ka + 450*a1*b2*kc + a2**2*kc - 2*a2*b1*ka - 2*a2*b2*ka + 2*a2*b2*kc + 15*b1*b2*ka + 15*b2**2*ka - 
16*b2**2*kc) + df(x1,t)**16*x1*vm*( - 38*a1**2*ka + 9*a1*a2*ka + 22*a1*b1*ka + 24*a1*b2*ka - 28*a1*b2*kc - b1*b2*ka - b2
**2*ka + b2**2*kc) + 30*df(x1,t)**16*x2**2*a1**2*( - 7*a1*kc + a2*kc + 7*b1*ka + 7*b2*ka - 8*b2*kc) + 2*df(x1,t)**16*x2*
a1*vm*(26*a1*ka - 2*a2*ka - 14*b1*ka - 14*b2*ka + 15*b2*kc) + df(x1,t)**15*x1**3*a1*( - 728*a1**3*kc + 259*a1**2*a2*kc +
 728*a1**2*b1*ka + 728*a1**2*b2*ka - 910*a1**2*b2*kc - 13*a1*a2**2*kc + 14*a1*a2*b1*ka + 14*a1*a2*b2*ka - 30*a1*a2*b2*kc
 - 91*a1*b1*b2*ka - 91*a1*b2**2*ka + 120*a1*b2**2*kc + a2**2*b1*ka + a2**2*b2*ka - a2*b1*b2*ka - a2*b2**2*ka) + df(x1,t)
**15*x1**2*x2*a1*(2366*a1**3*kc - 728*a1**2*a2*kc - 2366*a1**2*b1*ka - 2366*a1**2*b2*ka + 2940*a1**2*b2*kc + 26*a1*a2**2
*kc - 42*a1*a2*b1*ka - 42*a1*a2*b2*ka + 60*a1*a2*b2*kc + 196*a1*b1*b2*ka + 196*a1*b2**2*ka - 240*a1*b2**2*kc - a2**2*b1*
ka - a2**2*b2*ka + a2*b1*b2*ka + a2*b2**2*ka) + df(x1,t)**15*x1**2*a1*vm*( - 160*a1**2*ka + 80*a1*a2*ka + 110*a1*b1*ka +
 126*a1*b2*ka - 182*a1*b2*kc - 6*a2**2*ka + 6*a2*b1*ka - a2*b2*kc - 10*b1*b2*ka - 10*b2**2*ka + 14*b2**2*kc) + df(x1,t)
**15*x1*x2**2*a1**2*( - 2548*a1**2*kc + 679*a1*a2*kc + 2548*a1*b1*ka + 2548*a1*b2*ka - 3150*a1*b2*kc - 13*a2**2*kc + 28*
a2*b1*ka + 28*a2*b2*ka - 30*a2*b2*kc - 105*b1*b2*ka - 105*b2**2*ka + 120*b2**2*kc) + df(x1,t)**15*x1*x2*a1*vm*(456*a1**2
*ka - 141*a1*a2*ka - 286*a1*b1*ka - 312*a1*b2*ka + 392*a1*b2*kc + 5*a2**2*ka - 6*a2*b1*ka - 4*a2*b2*ka + 2*a2*b2*kc + 14
*b1*b2*ka + 14*b2**2*ka - 15*b2**2*kc) + 70*df(x1,t)**15*x2**3*a1**3*(13*a1*kc - 3*a2*kc - 13*b1*ka - 13*b2*ka + 16*b2*
kc) + 2*df(x1,t)**15*x2**2*a1**2*vm*( - 156*a1*ka + 26*a2*ka + 91*b1*ka + 91*b2*ka - 105*b2*kc) + 7*df(x1,t)**14*x1**4*
a1**2*( - 286*a1**3*kc + 143*a1**2*a2*kc + 286*a1**2*b1*ka + 286*a1**2*b2*ka - 390*a1**2*b2*kc - 11*a1*a2**2*kc + 13*a1*
a2*b1*ka + 13*a1*a2*b2*ka - 30*a1*a2*b2*kc - 52*a1*b1*b2*ka - 52*a1*b2**2*ka + 80*a1*b2**2*kc + 2*a2**2*b1*ka + 2*a2**2*
b2*ka - 2*a2*b1*b2*ka - 2*a2*b2**2*ka) + 7*df(x1,t)**14*x1**3*x2*a1**2*(1248*a1**3*kc - 559*a1**2*a2*kc - 1248*a1**2*b1*
ka - 1248*a1**2*b2*ka + 1690*a1**2*b2*kc + 33*a1*a2**2*kc - 52*a1*a2*b1*ka - 52*a1*a2*b2*ka + 90*a1*a2*b2*kc + 169*a1*b1
*b2*ka + 169*a1*b2**2*ka - 240*a1*b2**2*kc - 4*a2**2*b1*ka - 4*a2**2*b2*ka + 4*a2*b1*b2*ka + 4*a2*b2**2*ka) + df(x1,t)**
14*x1**3*a1*vm*( - 390*a1**3*ka + 310*a1**2*a2*ka + 330*a1**2*b1*ka + 374*a1**2*b2*ka - 728*a1**2*b2*kc - 46*a1*a2**2*ka
 + 66*a1*a2*b1*ka + 15*a1*a2*b2*ka - 14*a1*a2*b2*kc - 42*a1*b1*b2*ka - 42*a1*b2**2*ka + 91*a1*b2**2*kc + a2**3*ka + 5*a2
**2*b2*ka - a2**2*b2*kc - 5*a2*b1*b2*ka - 5*a2*b2**2*ka + a2*b2**2*kc) + 7*df(x1,t)**14*x1**2*x2**2*a1**2*( - 2028*a1**3
*kc + 819*a1**2*a2*kc + 2028*a1**2*b1*ka + 2028*a1**2*b2*ka - 2730*a1**2*b2*kc - 33*a1*a2**2*kc + 65*a1*a2*b1*ka + 65*a1
*a2*b2*ka - 90*a1*a2*b2*kc - 182*a1*b1*b2*ka - 182*a1*b2**2*ka + 240*a1*b2**2*kc + 2*a2**2*b1*ka + 2*a2**2*b2*ka - 2*a2*
b1*b2*ka - 2*a2*b2**2*ka) + df(x1,t)**14*x1**2*x2*a1*vm*(1760*a1**3*ka - 984*a1**2*a2*ka - 1320*a1**2*b1*ka - 1512*a1**2
*b2*ka + 2366*a1**2*b2*kc + 97*a1*a2**2*ka - 144*a1*a2*b1*ka - 60*a1*a2*b2*ka + 42*a1*a2*b2*kc + 130*a1*b1*b2*ka + 130*
a1*b2**2*ka - 196*a1*b2**2*kc - a2**3*ka - 4*a2**2*b2*ka + a2**2*b2*kc + 4*a2*b1*b2*ka + 4*a2*b2**2*ka - a2*b2**2*kc) + 
7*df(x1,t)**14*x1*x2**3*a1**3*(1456*a1**2*kc - 533*a1*a2*kc - 1456*a1*b1*ka - 1456*a1*b2*ka + 1950*a1*b2*kc + 11*a2**2*
kc - 26*a2*b1*ka - 26*a2*b2*ka + 30*a2*b2*kc + 65*b1*b2*ka + 65*b2**2*ka - 80*b2**2*kc) + df(x1,t)**14*x1*x2**2*a1**2*vm
*( - 2508*a1**2*ka + 990*a1*a2*ka + 1716*a1*b1*ka + 1872*a1*b2*ka - 2548*a1*b2*kc - 51*a2**2*ka + 78*a2*b1*ka + 52*a2*b2
*ka - 28*a2*b2*kc - 91*b1*b2*ka - 91*b2**2*ka + 105*b2**2*kc) + 910*df(x1,t)**14*x2**4*a1**4*( - 3*a1*kc + a2*kc + 3*b1*
ka + 3*b2*ka - 4*b2*kc) + 26*df(x1,t)**14*x2**3*a1**3*vm*(44*a1*ka - 12*a2*ka - 28*b1*ka - 28*b2*ka + 35*b2*kc) + 91*df(
x1,t)**13*x1**5*a1**3*( - 44*a1**3*kc + 29*a1**2*a2*kc + 44*a1**2*b1*ka + 44*a1**2*b2*ka - 66*a1**2*b2*kc - 3*a1*a2**2*
kc + 4*a1*a2*b1*ka + 4*a1*a2*b2*ka - 10*a1*a2*b2*kc - 11*a1*b1*b2*ka - 11*a1*b2**2*ka + 20*a1*b2**2*kc + a2**2*b1*ka + 
a2**2*b2*ka - a2*b1*b2*ka - a2*b2**2*ka) + 91*df(x1,t)**13*x1**4*x2*a1**3*(242*a1**3*kc - 146*a1**2*a2*kc - 242*a1**2*b1
*ka - 242*a1**2*b2*ka + 360*a1**2*b2*kc + 12*a1*a2**2*kc - 20*a1*a2*b1*ka - 20*a1*a2*b2*ka + 40*a1*a2*b2*kc + 48*a1*b1*
b2*ka + 48*a1*b2**2*ka - 80*a1*b2**2*kc - 3*a2**2*b1*ka - 3*a2**2*b2*ka + 3*a2*b1*b2*ka + 3*a2*b2**2*ka) + df(x1,t)**13*
x1**4*a1*vm*( - 600*a1**4*ka + 680*a1**3*a2*ka + 660*a1**3*b1*ka + 660*a1**3*b2*ka - 2002*a1**3*b2*kc - 144*a1**2*a2**2*
ka + 330*a1**2*a2*b1*ka + 162*a1**2*a2*b2*ka - 91*a1**2*a2*b2*kc - 88*a1**2*b1*b2*ka - 88*a1**2*b2**2*ka + 364*a1**2*b2
**2*kc + 4*a1*a2**3*ka + 6*a1*a2**2*b1*ka + 47*a1*a2**2*b2*ka - 14*a1*a2**2*b2*kc - 59*a1*a2*b1*b2*ka - 59*a1*a2*b2**2*
ka + 14*a1*a2*b2**2*kc - a2**3*b2*ka + a2**2*b1*b2*ka + a2**2*b2**2*ka) + 273*df(x1,t)**13*x1**3*x2**2*a1**3*( - 176*a1
**3*kc + 98*a1**2*a2*kc + 176*a1**2*b1*ka + 176*a1**2*b2*ka - 260*a1**2*b2*kc - 6*a1*a2**2*kc + 12*a1*a2*b1*ka + 12*a1*
a2*b2*ka - 20*a1*a2*b2*kc - 26*a1*b1*b2*ka - 26*a1*b2**2*ka + 40*a1*b2**2*kc + a2**2*b1*ka + a2**2*b2*ka - a2*b1*b2*ka -
 a2*b2**2*ka) + df(x1,t)**13*x1**3*x2*a1*vm*(3900*a1**4*ka - 3210*a1**3*a2*ka - 3630*a1**3*b1*ka - 4114*a1**3*b2*ka + 
8736*a1**3*b2*kc + 498*a1**2*a2**2*ka - 1122*a1**2*a2*b1*ka - 570*a1**2*a2*b2*ka + 364*a1**2*a2*b2*kc + 504*a1**2*b1*b2*
ka + 504*a1**2*b2**2*ka - 1183*a1**2*b2**2*kc - 8*a1*a2**3*ka - 12*a1*a2**2*b1*ka - 95*a1*a2**2*b2*ka + 28*a1*a2**2*b2*
kc + 111*a1*a2*b1*b2*ka + 111*a1*a2*b2**2*ka - 28*a1*a2*b2**2*kc + a2**3*b2*ka - a2**2*b1*b2*ka - a2**2*b2**2*ka) + 91*
df(x1,t)**13*x1**2*x2**3*a1**3*(572*a1**3*kc - 296*a1**2*a2*kc - 572*a1**2*b1*ka - 572*a1**2*b2*ka + 840*a1**2*b2*kc + 
12*a1*a2**2*kc - 28*a1*a2*b1*ka - 28*a1*a2*b2*ka + 40*a1*a2*b2*kc + 56*a1*b1*b2*ka + 56*a1*b2**2*ka - 80*a1*b2**2*kc - 
a2**2*b1*ka - a2**2*b2*ka + a2*b1*b2*ka + a2*b2**2*ka) + df(x1,t)**13*x1**2*x2**2*a1**2*vm*( - 8800*a1**3*ka + 5544*a1**
2*a2*ka + 7260*a1**2*b1*ka + 8316*a1**2*b2*ka - 14196*a1**2*b2*kc - 576*a1*a2**2*ka + 1260*a1*a2*b1*ka + 720*a1*a2*b2*ka
 - 455*a1*a2*b2*kc - 780*a1*b1*b2*ka - 780*a1*b2**2*ka + 1274*a1*b2**2*kc + 4*a2**3*ka + 6*a2**2*b1*ka + 48*a2**2*b2*ka 
- 14*a2**2*b2*kc - 52*a2*b1*b2*ka - 52*a2*b2**2*ka + 14*a2*b2**2*kc) + 91*df(x1,t)**13*x1*x2**4*a1**4*( - 308*a1**2*kc +
 149*a1*a2*kc + 308*a1*b1*ka + 308*a1*b2*ka - 450*a1*b2*kc - 3*a2**2*kc + 8*a2*b1*ka + 8*a2*b2*ka - 10*a2*b2*kc - 15*b1*
b2*ka - 15*b2**2*ka + 20*b2**2*kc) + df(x1,t)**13*x1*x2**3*a1**3*vm*(8360*a1**2*ka - 4158*a1*a2*ka - 6292*a1*b1*ka - 
6864*a1*b2*ka + 10192*a1*b2*kc + 222*a2**2*ka - 468*a2*b1*ka - 312*a2*b2*ka + 182*a2*b2*kc + 364*b1*b2*ka + 364*b2**2*ka
 - 455*b2**2*kc) + 546*df(x1,t)**13*x2**5*a1**5*(11*a1*kc - 5*a2*kc - 11*b1*ka - 11*b2*ka + 16*b2*kc) + 26*df(x1,t)**13*
x2**4*a1**4*vm*( - 110*a1*ka + 44*a2*ka + 77*b1*ka + 77*b2*ka - 105*b2*kc) + 91*df(x1,t)**12*x1**6*a1**4*( - 66*a1**3*kc
 + 55*a1**2*a2*kc + 66*a1**2*b1*ka + 66*a1**2*b2*ka - 110*a1**2*b2*kc - 7*a1*a2**2*kc + 11*a1*a2*b1*ka + 11*a1*a2*b2*ka 
- 30*a1*a2*b2*kc - 22*a1*b1*b2*ka - 22*a1*b2**2*ka + 48*a1*b2**2*kc + 4*a2**2*b1*ka + 4*a2**2*b2*ka - 4*a2*b1*b2*ka - 4*
a2*b2**2*ka) + 91*df(x1,t)**12*x1**5*x2*a1**4*(440*a1**3*kc - 341*a1**2*a2*kc - 440*a1**2*b1*ka - 440*a1**2*b2*ka + 726*
a1**2*b2*kc + 35*a1*a2**2*kc - 66*a1*a2*b1*ka - 66*a1*a2*b2*ka + 150*a1*a2*b2*kc + 121*a1*b1*b2*ka + 121*a1*b2**2*ka - 
240*a1*b2**2*kc - 16*a2**2*b1*ka - 16*a2**2*b2*ka + 16*a2*b1*b2*ka + 16*a2*b2**2*ka) + df(x1,t)**12*x1**5*a1**2*vm*( - 
588*a1**4*ka + 915*a1**3*a2*ka + 924*a1**3*b1*ka + 594*a1**3*b2*ka - 4004*a1**3*b2*kc - 228*a1**2*a2**2*ka + 990*a1**2*
a2*b1*ka + 792*a1**2*a2*b2*ka - 364*a1**2*a2*b2*kc - 55*a1**2*b1*b2*ka - 55*a1**2*b2**2*ka + 1001*a1**2*b2**2*kc - 2*a1*
a2**3*ka + 66*a1*a2**2*b1*ka + 192*a1*a2**2*b2*ka - 91*a1*a2**2*b2*kc - 318*a1*a2*b1*b2*ka - 318*a1*a2*b2**2*ka + 91*a1*
a2*b2**2*kc - 6*a2**3*b2*ka + 10*a2**2*b1*b2*ka + 10*a2**2*b2**2*ka) + 182*df(x1,t)**12*x1**4*x2**2*a1**4*( - 605*a1**3*
kc + 440*a1**2*a2*kc + 605*a1**2*b1*ka + 605*a1**2*b2*ka - 990*a1**2*b2*kc - 35*a1*a2**2*kc + 77*a1*a2*b1*ka + 77*a1*a2*
b2*ka - 150*a1*a2*b2*kc - 132*a1*b1*b2*ka - 132*a1*b2**2*ka + 240*a1*b2**2*kc + 12*a2**2*b1*ka + 12*a2**2*b2*ka - 12*a2*
b1*b2*ka - 12*a2*b2**2*ka) + df(x1,t)**12*x1**4*x2*a1**2*vm*(5400*a1**4*ka - 5900*a1**3*a2*ka - 6600*a1**3*b1*ka - 6600*
a1**3*b2*ka + 22022*a1**3*b2*kc + 1094*a1**2*a2**2*ka - 4620*a1**2*a2*b1*ka - 3256*a1**2*a2*b2*ka + 1820*a1**2*a2*b2*kc 
+ 968*a1**2*b1*b2*ka + 968*a1**2*b2**2*ka - 4368*a1**2*b2**2*kc + 18*a1*a2**3*ka - 204*a1*a2**2*b1*ka - 648*a1*a2**2*b2*
ka + 273*a1*a2**2*b2*kc + 948*a1*a2*b1*b2*ka + 948*a1*a2*b2**2*ka - 273*a1*a2*b2**2*kc + 12*a2**3*b2*ka - 20*a2**2*b1*b2
*ka - 20*a2**2*b2**2*ka) + 182*df(x1,t)**12*x1**3*x2**3*a1**4*(880*a1**3*kc - 605*a1**2*a2*kc - 880*a1**2*b1*ka - 880*a1
**2*b2*ka + 1430*a1**2*b2*kc + 35*a1*a2**2*kc - 88*a1*a2*b1*ka - 88*a1*a2*b2*ka + 150*a1*a2*b2*kc + 143*a1*b1*b2*ka + 
143*a1*b2**2*ka - 240*a1*b2**2*kc - 8*a2**2*b1*ka - 8*a2**2*b2*ka + 8*a2*b1*b2*ka + 8*a2*b2**2*ka) + df(x1,t)**12*x1**3*
x2**2*a1**2*vm*( - 17550*a1**4*ka + 15050*a1**3*a2*ka + 18150*a1**3*b1*ka + 20570*a1**3*b2*ka - 48048*a1**3*b2*kc - 2010
*a1**2*a2**2*ka + 7986*a1**2*a2*b1*ka + 5280*a1**2*a2*b2*ka - 3276*a1**2*a2*b2*kc - 2772*a1**2*b1*b2*ka - 2772*a1**2*b2
**2*ka + 7098*a1**2*b2**2*kc - 30*a1*a2**3*ka + 210*a1*a2**2*b1*ka + 720*a1*a2**2*b2*ka - 273*a1*a2**2*b2*kc - 942*a1*a2
*b1*b2*ka - 942*a1*a2*b2**2*ka + 273*a1*a2*b2**2*kc - 6*a2**3*b2*ka + 10*a2**2*b1*b2*ka + 10*a2**2*b2**2*ka) + 91*df(x1,
t)**12*x1**2*x2**4*a1**4*( - 1430*a1**3*kc + 935*a1**2*a2*kc + 1430*a1**2*b1*ka + 1430*a1**2*b2*ka - 2310*a1**2*b2*kc - 
35*a1*a2**2*kc + 99*a1*a2*b1*ka + 99*a1*a2*b2*ka - 150*a1*a2*b2*kc - 154*a1*b1*b2*ka - 154*a1*b2**2*ka + 240*a1*b2**2*kc
 + 4*a2**2*b1*ka + 4*a2**2*b2*ka - 4*a2*b1*b2*ka - 4*a2*b2**2*ka) + df(x1,t)**12*x1**2*x2**3*a1**3*vm*(26400*a1**3*ka - 
18920*a1**2*a2*ka - 24200*a1**2*b1*ka - 27720*a1**2*b2*ka + 52052*a1**2*b2*kc + 1650*a1*a2**2*ka - 6072*a1*a2*b1*ka - 
3960*a1*a2*b2*ka + 2548*a1*a2*b2*kc + 2860*a1*b1*b2*ka + 2860*a1*b2**2*ka - 5096*a1*b2**2*kc + 14*a2**3*ka - 72*a2**2*b1
*ka - 264*a2**2*b2*ka + 91*a2**2*b2*kc + 312*a2*b1*b2*ka + 312*a2*b2**2*ka - 91*a2*b2**2*kc) + 91*df(x1,t)**12*x1*x2**5*
a1**5*(616*a1**2*kc - 385*a1*a2*kc - 616*a1*b1*ka - 616*a1*b2*ka + 990*a1*b2*kc + 7*a2**2*kc - 22*a2*b1*ka - 22*a2*b2*ka
 + 30*a2*b2*kc + 33*b1*b2*ka + 33*b2**2*ka - 48*b2**2*kc) + df(x1,t)**12*x1*x2**4*a1**4*vm*( - 18810*a1**2*ka + 11715*a1
*a2*ka + 15730*a1*b1*ka + 17160*a1*b2*ka - 28028*a1*b2*kc - 506*a2**2*ka + 1716*a2*b1*ka + 1144*a2*b2*ka - 728*a2*b2*kc 
- 1001*b1*b2*ka - 1001*b2**2*ka + 1365*b2**2*kc) + 2002*df(x1,t)**12*x2**6*a1**6*( - 5*a1*kc + 3*a2*kc + 5*b1*ka + 5*b2*
ka - 8*b2*kc) + 286*df(x1,t)**12*x2**5*a1**5*vm*(18*a1*ka - 10*a2*ka - 14*b1*ka - 14*b2*ka + 21*b2*kc) + 143*df(x1,t)**
11*x1**7*a1**5*( - 48*a1**3*kc + 49*a1**2*a2*kc + 48*a1**2*b1*ka + 48*a1**2*b2*ka - 90*a1**2*b2*kc - 7*a1*a2**2*kc + 14*
a1*a2*b1*ka + 14*a1*a2*b2*ka - 42*a1*a2*b2*kc - 21*a1*b1*b2*ka - 21*a1*b2**2*ka + 56*a1*b2**2*kc + 7*a2**2*b1*ka + 7*a2
**2*b2*ka - 7*a2*b1*b2*ka - 7*a2*b2**2*ka) + 1001*df(x1,t)**11*x1**6*x2*a1**5*(54*a1**3*kc - 52*a1**2*a2*kc - 54*a1**2*
b1*ka - 54*a1**2*b2*ka + 100*a1**2*b2*kc + 6*a1*a2**2*kc - 14*a1*a2*b1*ka - 14*a1*a2*b2*ka + 36*a1*a2*b2*kc + 20*a1*b1*
b2*ka + 20*a1*b2**2*ka - 48*a1*b2**2*kc - 5*a2**2*b1*ka - 5*a2**2*b2*ka + 5*a2*b1*b2*ka + 5*a2*b2**2*ka) + df(x1,t)**11*
x1**6*a1**3*vm*( - 336*a1**4*ka + 768*a1**3*a2*ka + 924*a1**3*b1*ka - 132*a1**3*b2*ka - 6006*a1**3*b2*kc - 190*a1**2*a2
**2*ka + 1980*a1**2*a2*b1*ka + 2310*a1**2*a2*b2*ka - 1001*a1**2*a2*b2*kc + 198*a1**2*b1*b2*ka + 198*a1**2*b2**2*ka + 
2002*a1**2*b2**2*kc - 24*a1*a2**3*ka + 330*a1*a2**2*b1*ka + 440*a1*a2**2*b2*ka - 364*a1*a2**2*b2*kc - 1034*a1*a2*b1*b2*
ka - 1034*a1*a2*b2**2*ka + 364*a1*a2*b2**2*kc - 4*a2**4*ka + 2*a2**3*b1*ka + 42*a2**2*b1*b2*ka + 42*a2**2*b2**2*ka) + 
5005*df(x1,t)**11*x1**5*x2**2*a1**5*( - 36*a1**3*kc + 33*a1**2*a2*kc + 36*a1**2*b1*ka + 36*a1**2*b2*ka - 66*a1**2*b2*kc 
- 3*a1*a2**2*kc + 8*a1*a2*b1*ka + 8*a1*a2*b2*ka - 18*a1*a2*b2*kc - 11*a1*b1*b2*ka - 11*a1*b2**2*ka + 24*a1*b2**2*kc + 2*
a2**2*b1*ka + 2*a2**2*b2*ka - 2*a2*b1*b2*ka - 2*a2*b2**2*ka) + df(x1,t)**11*x1**5*x2*a1**3*vm*(4704*a1**4*ka - 6363*a1**
3*a2*ka - 8316*a1**3*b1*ka - 5346*a1**3*b2*ka + 40040*a1**3*b2*kc + 955*a1**2*a2**2*ka - 11880*a1**2*a2*b1*ka - 11550*a1
**2*a2*b2*ka + 6006*a1**2*a2*b2*kc + 550*a1**2*b1*b2*ka + 550*a1**2*b2**2*ka - 11011*a1**2*b2**2*kc + 204*a1*a2**3*ka - 
1386*a1*a2**2*b1*ka - 2200*a1*a2**2*b2*ka + 1456*a1*a2**2*b2*kc + 4246*a1*a2*b1*b2*ka + 4246*a1*a2*b2**2*ka - 1456*a1*a2
*b2**2*kc + 12*a2**4*ka - 6*a2**3*b1*ka - 126*a2**2*b1*b2*ka - 126*a2**2*b2**2*ka) + 10010*df(x1,t)**11*x1**4*x2**3*a1**
5*(33*a1**3*kc - 29*a1**2*a2*kc - 33*a1**2*b1*ka - 33*a1**2*b2*ka + 60*a1**2*b2*kc + 2*a1*a2**2*kc - 6*a1*a2*b1*ka - 6*
a1*a2*b2*ka + 12*a1*a2*b2*kc + 8*a1*b1*b2*ka + 8*a1*b2**2*ka - 16*a1*b2**2*kc - a2**2*b1*ka - a2**2*b2*ka + a2*b1*b2*ka 
+ a2*b2**2*ka) + 2*df(x1,t)**11*x1**4*x2**2*a1**3*vm*( - 10800*a1**4*ka + 11250*a1**3*a2*ka + 14850*a1**3*b1*ka + 14850*
a1**3*b2*ka - 55055*a1**3*b2*kc - 1110*a1**2*a2**2*ka + 14025*a1**2*a2*b1*ka + 11825*a1**2*a2*b2*ka - 7007*a1**2*a2*b2*
kc - 2420*a1**2*b1*b2*ka - 2420*a1**2*b2**2*ka + 12012*a1**2*b2**2*kc - 234*a1*a2**3*ka + 1089*a1*a2**2*b1*ka + 1980*a1*
a2**2*b2*ka - 1092*a1*a2**2*b2*kc - 3267*a1*a2*b1*b2*ka - 3267*a1*a2*b2**2*ka + 1092*a1*a2*b2**2*kc - 6*a2**4*ka + 3*a2
**3*b1*ka + 63*a2**2*b1*b2*ka + 63*a2**2*b2**2*ka) + 5005*df(x1,t)**11*x1**3*x2**4*a1**5*( - 72*a1**3*kc + 61*a1**2*a2*
kc + 72*a1**2*b1*ka + 72*a1**2*b2*ka - 130*a1**2*b2*kc - 3*a1*a2**2*kc + 10*a1*a2*b1*ka + 10*a1*a2*b2*ka - 18*a1*a2*b2*
kc - 13*a1*b1*b2*ka - 13*a1*b2**2*ka + 24*a1*b2**2*kc + a2**2*b1*ka + a2**2*b2*ka - a2*b1*b2*ka - a2*b2**2*ka) + 2*df(x1
,t)**11*x1**3*x2**3*a1**3*vm*(23400*a1**4*ka - 21075*a1**3*a2*ka - 27225*a1**3*b1*ka - 30855*a1**3*b2*ka + 80080*a1**3*
b2*kc + 1415*a1**2*a2**2*ka - 16335*a1**2*a2*b1*ka - 12375*a1**2*a2*b2*ka + 8008*a1**2*a2*b2*kc + 4620*a1**2*b1*b2*ka + 
4620*a1**2*b2**2*ka - 13013*a1**2*b2**2*kc + 210*a1*a2**3*ka - 759*a1*a2**2*b1*ka - 1540*a1*a2**2*b2*ka + 728*a1*a2**2*
b2*kc + 2233*a1*a2*b1*b2*ka + 2233*a1*a2*b2**2*ka - 728*a1*a2*b2**2*kc + 2*a2**4*ka - a2**3*b1*ka - 21*a2**2*b1*b2*ka - 
21*a2**2*b2**2*ka) + 1001*df(x1,t)**11*x1**2*x2**5*a1**5*(234*a1**3*kc - 192*a1**2*a2*kc - 234*a1**2*b1*ka - 234*a1**2*
b2*ka + 420*a1**2*b2*kc + 6*a1*a2**2*kc - 22*a1*a2*b1*ka - 22*a1*a2*b2*ka + 36*a1*a2*b2*kc + 28*a1*b1*b2*ka + 28*a1*b2**
2*ka - 48*a1*b2**2*kc - a2**2*b1*ka - a2**2*b2*ka + a2*b1*b2*ka + a2*b2**2*ka) + df(x1,t)**11*x1**2*x2**4*a1**4*vm*( - 
52800*a1**3*ka + 43560*a1**2*a2*ka + 54450*a1**2*b1*ka + 62370*a1**2*b2*ka - 130130*a1**2*b2*kc - 1870*a1*a2**2*ka + 
18810*a1*a2*b1*ka + 13200*a1*a2*b2*ka - 9009*a1*a2*b2*kc - 7150*a1*b1*b2*ka - 7150*a1*b2**2*ka + 14014*a1*b2**2*kc - 132
*a2**3*ka + 396*a2**2*b1*ka + 880*a2**2*b2*ka - 364*a2**2*b2*kc - 1144*a2*b1*b2*ka - 1144*a2*b2**2*ka + 364*a2*b2**2*kc)
 + 1001*df(x1,t)**11*x1*x2**6*a1**6*( - 84*a1**2*kc + 67*a1*a2*kc + 84*a1*b1*ka + 84*a1*b2*ka - 150*a1*b2*kc - a2**2*kc 
+ 4*a2*b1*ka + 4*a2*b2*ka - 6*a2*b2*kc - 5*b1*b2*ka - 5*b2**2*ka + 8*b2**2*kc) + 11*df(x1,t)**11*x1*x2**5*a1**5*vm*(2736
*a1**2*ka - 2133*a1*a2*ka - 2574*a1*b1*ka - 2808*a1*b2*ka + 5096*a1*b2*kc + 45*a2**2*ka - 390*a2*b1*ka - 260*a2*b2*ka + 
182*a2*b2*kc + 182*b1*b2*ka + 182*b2**2*ka - 273*b2**2*kc) + 1430*df(x1,t)**11*x2**7*a1**7*(9*a1*kc - 7*a2*kc - 9*b1*ka 
- 9*b2*ka + 16*b2*kc) + 286*df(x1,t)**11*x2**6*a1**6*vm*( - 24*a1*ka + 18*a2*ka + 21*b1*ka + 21*b2*ka - 35*b2*kc) + 143*
df(x1,t)**10*x1**8*a1**6*( - 42*a1**3*kc + 51*a1**2*a2*kc + 42*a1**2*b1*ka + 42*a1**2*b2*ka - 90*a1**2*b2*kc - 7*a1*a2**
2*kc + 21*a1*a2*b1*ka + 21*a1*a2*b2*ka - 70*a1*a2*b2*kc - 24*a1*b1*b2*ka - 24*a1*b2**2*ka + 80*a1*b2**2*kc + 14*a2**2*b1
*ka + 14*a2**2*b2*ka - 14*a2*b1*b2*ka - 14*a2*b2**2*ka) + 143*df(x1,t)**10*x1**7*x2*a1**6*(384*a1**3*kc - 447*a1**2*a2*
kc - 384*a1**2*b1*ka - 384*a1**2*b2*ka + 810*a1**2*b2*kc + 49*a1*a2**2*kc - 168*a1*a2*b1*ka - 168*a1*a2*b2*ka + 490*a1*
a2*b2*kc + 189*a1*b1*b2*ka + 189*a1*b2**2*ka - 560*a1*b2**2*kc - 84*a2**2*b1*ka - 84*a2**2*b2*ka + 84*a2*b1*b2*ka + 84*
a2*b2**2*ka) + df(x1,t)**10*x1**7*a1**4*vm*( - 60*a1**4*ka + 420*a1**3*a2*ka + 660*a1**3*b1*ka - 1188*a1**3*b2*ka - 6864
*a1**3*b2*kc - 162*a1**2*a2**2*ka + 2772*a1**2*a2*b1*ka + 4455*a1**2*a2*b2*ka - 2002*a1**2*a2*b2*kc + 660*a1**2*b1*b2*ka
 + 660*a1**2*b2**2*ka + 3003*a1**2*b2**2*kc + 35*a1*a2**3*ka + 990*a1*a2**2*b1*ka + 605*a1*a2**2*b2*ka - 1001*a1*a2**2*
b2*kc - 2255*a1*a2*b1*b2*ka - 2255*a1*a2*b2**2*ka + 1001*a1*a2*b2**2*kc - 38*a2**4*ka + 22*a2**3*b1*ka + 110*a2**3*b2*ka
 + 88*a2**2*b1*b2*ka + 88*a2**2*b2**2*ka) + 3003*df(x1,t)**10*x1**6*x2**2*a1**6*( - 72*a1**3*kc + 81*a1**2*a2*kc + 72*a1
**2*b1*ka + 72*a1**2*b2*ka - 150*a1**2*b2*kc - 7*a1*a2**2*kc + 27*a1*a2*b1*ka + 27*a1*a2*b2*ka - 70*a1*a2*b2*kc - 30*a1*
b1*b2*ka - 30*a1*b2**2*ka + 80*a1*b2**2*kc + 10*a2**2*b1*ka + 10*a2**2*b2*ka - 10*a2*b1*b2*ka - 10*a2*b2**2*ka) + df(x1,
t)**10*x1**6*x2*a1**4*vm*(2352*a1**4*ka - 3792*a1**3*a2*ka - 7392*a1**3*b1*ka + 1056*a1**3*b2*ka + 54054*a1**3*b2*kc - 
45*a1**2*a2**2*ka - 20592*a1**2*a2*b1*ka - 26928*a1**2*a2*b2*ka + 14014*a1**2*a2*b2*kc - 1782*a1**2*b1*b2*ka - 1782*a1**
2*b2**2*ka - 20020*a1**2*b2**2*kc + 245*a1*a2**3*ka - 5280*a1*a2**2*b1*ka - 4400*a1*a2**2*b2*ka + 5005*a1*a2**2*b2*kc + 
11880*a1*a2*b1*b2*ka + 11880*a1*a2*b2**2*ka - 5005*a1*a2*b2**2*kc + 152*a2**4*ka - 88*a2**3*b1*ka - 440*a2**3*b2*ka - 
352*a2**2*b1*b2*ka - 352*a2**2*b2**2*ka) + 5005*df(x1,t)**10*x1**5*x2**3*a1**6*(96*a1**3*kc - 105*a1**2*a2*kc - 96*a1**2
*b1*ka - 96*a1**2*b2*ka + 198*a1**2*b2*kc + 7*a1*a2**2*kc - 30*a1*a2*b1*ka - 30*a1*a2*b2*ka + 70*a1*a2*b2*kc + 33*a1*b1*
b2*ka + 33*a1*b2**2*ka - 80*a1*b2**2*kc - 8*a2**2*b1*ka - 8*a2**2*b2*ka + 8*a2*b1*b2*ka + 8*a2*b2**2*ka) + df(x1,t)**10*
x1**5*x2**2*a1**4*vm*( - 16464*a1**4*ka + 17964*a1**3*a2*ka + 33264*a1**3*b1*ka + 21384*a1**3*b2*ka - 180180*a1**3*b2*kc
 + 2295*a1**2*a2**2*ka + 62370*a1**2*a2*b1*ka + 68310*a1**2*a2*b2*ka - 40040*a1**2*a2*b2*kc - 2475*a1**2*b1*b2*ka - 2475
*a1**2*b2**2*ka + 55055*a1**2*b2**2*kc - 1330*a1*a2**3*ka + 11220*a1*a2**2*b1*ka + 11550*a1*a2**2*b2*ka - 10010*a1*a2**2
*b2*kc - 24970*a1*a2*b1*b2*ka - 24970*a1*a2*b2**2*ka + 10010*a1*a2*b2**2*kc - 228*a2**4*ka + 132*a2**3*b1*ka + 660*a2**3
*b2*ka + 528*a2**2*b1*b2*ka + 528*a2**2*b2**2*ka) + 5005*df(x1,t)**10*x1**4*x2**4*a1**6*( - 132*a1**3*kc + 141*a1**2*a2*
kc + 132*a1**2*b1*ka + 132*a1**2*b2*ka - 270*a1**2*b2*kc - 7*a1*a2**2*kc + 33*a1*a2*b1*ka + 33*a1*a2*b2*ka - 70*a1*a2*b2
*kc - 36*a1*b1*b2*ka - 36*a1*b2**2*ka + 80*a1*b2**2*kc + 6*a2**2*b1*ka + 6*a2**2*b2*ka - 6*a2*b1*b2*ka - 6*a2*b2**2*ka) 
+ 2*df(x1,t)**10*x1**4*x2**3*a1**4*vm*(25200*a1**4*ka - 24600*a1**3*a2*ka - 39600*a1**3*b1*ka - 39600*a1**3*b2*ka + 
165165*a1**3*b2*kc - 2745*a1**2*a2**2*ka - 49500*a1**2*a2*b1*ka - 46530*a1**2*a2*b2*ka + 30030*a1**2*a2*b2*kc + 7260*a1
**2*b1*b2*ka + 7260*a1**2*b2**2*ka - 40040*a1**2*b2**2*kc + 1085*a1*a2**3*ka - 5940*a1*a2**2*b1*ka - 7150*a1*a2**2*b2*ka
 + 5005*a1*a2**2*b2*kc + 13090*a1*a2*b1*b2*ka + 13090*a1*a2*b2**2*ka - 5005*a1*a2*b2**2*kc + 76*a2**4*ka - 44*a2**3*b1*
ka - 220*a2**3*b2*ka - 176*a2**2*b1*b2*ka - 176*a2**2*b2**2*ka) + 3003*df(x1,t)**10*x1**3*x2**5*a1**6*(192*a1**3*kc - 
201*a1**2*a2*kc - 192*a1**2*b1*ka - 192*a1**2*b2*ka + 390*a1**2*b2*kc + 7*a1*a2**2*kc - 36*a1*a2*b1*ka - 36*a1*a2*b2*ka 
+ 70*a1*a2*b2*kc + 39*a1*b1*b2*ka + 39*a1*b2**2*ka - 80*a1*b2**2*kc - 4*a2**2*b1*ka - 4*a2**2*b2*ka + 4*a2*b1*b2*ka + 4*
a2*b2**2*ka) + df(x1,t)**10*x1**3*x2**4*a1**4*vm*( - 81900*a1**4*ka + 78300*a1**3*a2*ka + 108900*a1**3*b1*ka + 123420*a1
**3*b2*ka - 360360*a1**3*b2*kc + 5580*a1**2*a2**2*ka + 87120*a1**2*a2*b1*ka + 71775*a1**2*a2*b2*ka - 50050*a1**2*a2*b2*
kc - 20790*a1**2*b1*b2*ka - 20790*a1**2*b2**2*ka + 65065*a1**2*b2**2*kc - 1505*a1*a2**3*ka + 6270*a1*a2**2*b1*ka + 8525*
a1*a2**2*b2*ka - 5005*a1*a2**2*b2*kc - 13695*a1*a2*b1*b2*ka - 13695*a1*a2*b2**2*ka + 5005*a1*a2*b2**2*kc - 38*a2**4*ka +
 22*a2**3*b1*ka + 110*a2**3*b2*ka + 88*a2**2*b1*b2*ka + 88*a2**2*b2**2*ka) + 1001*df(x1,t)**10*x1**2*x2**6*a1**6*( - 312
*a1**3*kc + 321*a1**2*a2*kc + 312*a1**2*b1*ka + 312*a1**2*b2*ka - 630*a1**2*b2*kc - 7*a1*a2**2*kc + 39*a1*a2*b1*ka + 39*
a1*a2*b2*ka - 70*a1*a2*b2*kc - 42*a1*b1*b2*ka - 42*a1*b2**2*ka + 80*a1*b2**2*kc + 2*a2**2*b1*ka + 2*a2**2*b2*ka - 2*a2*
b1*b2*ka - 2*a2*b2**2*ka) + 11*df(x1,t)**10*x1**2*x2**5*a1**5*vm*(6720*a1**3*ka - 6480*a1**2*a2*ka - 7920*a1**2*b1*ka - 
9072*a1**2*b2*ka + 21294*a1**2*b2*kc - 243*a1*a2**2*ka - 3672*a1*a2*b1*ka - 2700*a1*a2*b2*ka + 2002*a1*a2*b2*kc + 1170*
a1*b1*b2*ka + 1170*a1*b2**2*ka - 2548*a1*b2**2*kc + 35*a2**3*ka - 120*a2**2*b1*ka - 180*a2**2*b2*ka + 91*a2**2*b2*kc + 
260*a2*b1*b2*ka + 260*a2*b2**2*ka - 91*a2*b2**2*kc) + 143*df(x1,t)**10*x1*x2**7*a1**7*(672*a1**2*kc - 681*a1*a2*kc - 672
*a1*b1*ka - 672*a1*b2*ka + 1350*a1*b2*kc + 7*a2**2*kc - 42*a2*b1*ka - 42*a2*b2*ka + 70*a2*b2*kc + 45*b1*b2*ka + 45*b2**2
*ka - 80*b2**2*kc) + 11*df(x1,t)**10*x1*x2**6*a1**6*vm*( - 3192*a1**2*ka + 3132*a1*a2*ka + 3432*a1*b1*ka + 3744*a1*b2*ka
 - 7644*a1*b2*kc + 45*a2**2*ka + 702*a2*b1*ka + 468*a2*b2*ka - 364*a2*b2*kc - 273*b1*b2*ka - 273*b2**2*ka + 455*b2**2*kc
) + 12870*df(x1,t)**10*x2**8*a1**8*( - a1*kc + a2*kc + b1*ka + b2*ka - 2*b2*kc) + 858*df(x1,t)**10*x2**7*a1**7*vm*(8*a1*
ka - 8*a2*ka - 8*b1*ka - 8*b2*ka + 15*b2*kc) + 143*df(x1,t)**9*x1**9*a1**7*( - 28*a1**3*kc + 39*a1**2*a2*kc + 28*a1**2*
b1*ka + 28*a1**2*b2*ka - 70*a1**2*b2*kc - 3*a1*a2**2*kc + 24*a1*a2*b1*ka + 24*a1*a2*b2*ka - 90*a1*a2*b2*kc - 21*a1*b1*b2
*ka - 21*a1*b2**2*ka + 90*a1*b2**2*kc + 21*a2**2*b1*ka + 21*a2**2*b2*ka - 21*a2*b1*b2*ka - 21*a2*b2**2*ka) + 429*df(x1,t
)**9*x1**8*x2*a1**7*(98*a1**3*kc - 134*a1**2*a2*kc - 98*a1**2*b1*ka - 98*a1**2*b2*ka + 240*a1**2*b2*kc + 8*a1*a2**2*kc -
 72*a1*a2*b1*ka - 72*a1*a2*b2*ka + 240*a1*a2*b2*kc + 64*a1*b1*b2*ka + 64*a1*b2**2*ka - 240*a1*b2**2*kc - 49*a2**2*b1*ka 
- 49*a2**2*b2*ka + 49*a2*b1*b2*ka + 49*a2*b2**2*ka) + df(x1,t)**9*x1**8*a1**5*vm*(60*a1**4*ka + 240*a1**3*a2*ka + 330*a1
**3*b1*ka - 1782*a1**3*b2*ka - 6006*a1**3*b2*kc - 432*a1**2*a2**2*ka + 2772*a1**2*a2*b1*ka + 5940*a1**2*a2*b2*ka - 3003*
a1**2*a2*b2*kc + 1056*a1**2*b1*b2*ka + 1056*a1**2*b2**2*ka + 3432*a1**2*b2**2*kc + 372*a1*a2**3*ka + 1980*a1*a2**2*b1*ka
 + 495*a1*a2**2*b2*ka - 2002*a1*a2**2*b2*kc - 3465*a1*a2*b1*b2*ka - 3465*a1*a2*b2**2*ka + 2002*a1*a2*b2**2*kc - 160*a2**
4*ka + 110*a2**3*b1*ka + 495*a2**3*b2*ka + 55*a2**2*b1*b2*ka + 55*a2**2*b2**2*ka) + 429*df(x1,t)**9*x1**7*x2**2*a1**7*( 
- 448*a1**3*kc + 604*a1**2*a2*kc + 448*a1**2*b1*ka + 448*a1**2*b2*ka - 1080*a1**2*b2*kc - 28*a1*a2**2*kc + 280*a1*a2*b1*
ka + 280*a1*a2*b2*ka - 840*a1*a2*b2*kc - 252*a1*b1*b2*ka - 252*a1*b2**2*ka + 840*a1*b2**2*kc + 147*a2**2*b1*ka + 147*a2
**2*b2*ka - 147*a2*b1*b2*ka - 147*a2*b2**2*ka) + df(x1,t)**9*x1**7*x2*a1**5*vm*(360*a1**4*ka - 1068*a1**3*a2*ka - 4620*
a1**3*b1*ka + 8316*a1**3*b2*ka + 54912*a1**3*b2*kc + 444*a1**2*a2**2*ka - 24948*a1**2*a2*b1*ka - 42900*a1**2*a2*b2*ka + 
24024*a1**2*a2*b2*kc - 5280*a1**2*b1*b2*ka - 5280*a1**2*b2**2*ka - 27027*a1**2*b2**2*kc - 1332*a1*a2**3*ka - 12870*a1*a2
**2*b1*ka - 5643*a1*a2**2*b2*ka + 12012*a1*a2**2*b2*kc + 22473*a1*a2*b1*b2*ka + 22473*a1*a2*b2**2*ka - 12012*a1*a2*b2**2
*kc + 800*a2**4*ka - 550*a2**3*b1*ka - 2475*a2**3*b2*ka - 275*a2**2*b1*b2*ka - 275*a2**2*b2**2*ka) + 3003*df(x1,t)**9*x1
**6*x2**3*a1**7*(168*a1**3*kc - 224*a1**2*a2*kc - 168*a1**2*b1*ka - 168*a1**2*b2*ka + 400*a1**2*b2*kc + 8*a1*a2**2*kc - 
88*a1*a2*b1*ka - 88*a1*a2*b2*ka + 240*a1*a2*b2*kc + 80*a1*b1*b2*ka + 80*a1*b2**2*ka - 240*a1*b2**2*kc - 35*a2**2*b1*ka -
 35*a2**2*b2*ka + 35*a2*b1*b2*ka + 35*a2*b2**2*ka) + df(x1,t)**9*x1**6*x2**2*a1**5*vm*( - 7056*a1**4*ka + 5040*a1**3*a2*
ka + 25872*a1**3*b1*ka - 3696*a1**3*b2*ka - 216216*a1**3*b2*kc + 6768*a1**2*a2**2*ka + 93456*a1**2*a2*b1*ka + 132264*a1
**2*a2*b2*ka - 81081*a1**2*a2*b2*kc + 7128*a1**2*b1*b2*ka + 7128*a1**2*b2**2*ka + 90090*a1**2*b2**2*kc + 1080*a1*a2**3*
ka + 34650*a1*a2**2*b1*ka + 20790*a1*a2**2*b2*ka - 30030*a1*a2**2*b2*kc - 60390*a1*a2*b1*b2*ka - 60390*a1*a2*b2**2*ka + 
30030*a1*a2*b2**2*kc - 1600*a2**4*ka + 1100*a2**3*b1*ka + 4950*a2**3*b2*ka + 550*a2**2*b1*b2*ka + 550*a2**2*b2**2*ka) + 
15015*df(x1,t)**9*x1**5*x2**4*a1**7*( - 56*a1**3*kc + 74*a1**2*a2*kc + 56*a1**2*b1*ka + 56*a1**2*b2*ka - 132*a1**2*b2*kc
 - 2*a1*a2**2*kc + 24*a1*a2*b1*ka + 24*a1*a2*b2*ka - 60*a1*a2*b2*kc - 22*a1*b1*b2*ka - 22*a1*b2**2*ka + 60*a1*b2**2*kc +
 7*a2**2*b1*ka + 7*a2**2*b2*ka - 7*a2*b1*b2*ka - 7*a2*b2**2*ka) + df(x1,t)**9*x1**5*x2**3*a1**5*vm*(32928*a1**4*ka - 
24444*a1**3*a2*ka - 77616*a1**3*b1*ka - 49896*a1**3*b2*ka + 480480*a1**3*b2*kc - 25380*a1**2*a2**2*ka - 190080*a1**2*a2*
b1*ka - 225720*a1**2*a2*b2*ka + 150150*a1**2*a2*b2*kc + 6600*a1**2*b1*b2*ka + 6600*a1**2*b2**2*ka - 165165*a1**2*b2**2*
kc + 1560*a1*a2**3*ka - 49500*a1*a2**2*b1*ka - 36630*a1*a2**2*b2*ka + 40040*a1*a2**2*b2*kc + 86130*a1*a2*b1*b2*ka + 
86130*a1*a2*b2**2*ka - 40040*a1*a2*b2**2*kc + 1600*a2**4*ka - 1100*a2**3*b1*ka - 4950*a2**3*b2*ka - 550*a2**2*b1*b2*ka -
 550*a2**2*b2**2*ka) + 3003*df(x1,t)**9*x1**4*x2**5*a1**7*(308*a1**3*kc - 404*a1**2*a2*kc - 308*a1**2*b1*ka - 308*a1**2*
b2*ka + 720*a1**2*b2*kc + 8*a1*a2**2*kc - 104*a1*a2*b1*ka - 104*a1*a2*b2*ka + 240*a1*a2*b2*kc + 96*a1*b1*b2*ka + 96*a1*
b2**2*ka - 240*a1*b2**2*kc - 21*a2**2*b1*ka - 21*a2**2*b2*ka + 21*a2*b1*b2*ka + 21*a2*b2**2*ka) + 5*df(x1,t)**9*x1**4*x2
**4*a1**5*vm*( - 15120*a1**4*ka + 13440*a1**3*a2*ka + 27720*a1**3*b1*ka + 27720*a1**3*b2*ka - 132132*a1**3*b2*kc + 8016*
a1**2*a2**2*ka + 45540*a1**2*a2*b1*ka + 46068*a1**2*a2*b2*ka - 33033*a1**2*a2*b2*kc - 5808*a1**2*b1*b2*ka - 5808*a1**2*
b2**2*ka + 36036*a1**2*b2**2*kc - 684*a1*a2**3*ka + 7920*a1*a2**2*b1*ka + 6831*a1*a2**2*b2*ka - 6006*a1*a2**2*b2*kc - 
13761*a1*a2*b1*b2*ka - 13761*a1*a2*b2**2*ka + 6006*a1*a2*b2**2*kc - 160*a2**4*ka + 110*a2**3*b1*ka + 495*a2**3*b2*ka + 
55*a2**2*b1*b2*ka + 55*a2**2*b2**2*ka) + 3003*df(x1,t)**9*x1**3*x2**6*a1**7*( - 224*a1**3*kc + 292*a1**2*a2*kc + 224*a1
**2*b1*ka + 224*a1**2*b2*ka - 520*a1**2*b2*kc - 4*a1*a2**2*kc + 56*a1*a2*b1*ka + 56*a1*a2*b2*ka - 120*a1*a2*b2*kc - 52*
a1*b1*b2*ka - 52*a1*b2**2*ka + 120*a1*b2**2*kc + 7*a2**2*b1*ka + 7*a2**2*b2*ka - 7*a2*b1*b2*ka - 7*a2*b2**2*ka) + df(x1,
t)**9*x1**3*x2**5*a1**5*vm*(98280*a1**4*ka - 101220*a1**3*a2*ka - 152460*a1**3*b1*ka - 172788*a1**3*b2*ka + 576576*a1**3
*b2*kc - 33228*a1**2*a2**2*ka - 161172*a1**2*a2*b1*ka - 140580*a1**2*a2*b2*ka + 108108*a1**2*a2*b2*kc + 33264*a1**2*b1*
b2*ka + 33264*a1**2*b2**2*ka - 117117*a1**2*b2**2*kc + 2268*a1*a2**3*ka - 16830*a1*a2**2*b1*ka - 16335*a1*a2**2*b2*ka + 
12012*a1*a2**2*b2*kc + 29205*a1*a2*b1*b2*ka + 29205*a1*a2*b2**2*ka - 12012*a1*a2*b2**2*kc + 160*a2**4*ka - 110*a2**3*b1*
ka - 495*a2**3*b2*ka - 55*a2**2*b1*b2*ka - 55*a2**2*b2**2*ka) + 429*df(x1,t)**9*x1**2*x2**7*a1**7*(728*a1**3*kc - 944*a1
**2*a2*kc - 728*a1**2*b1*ka - 728*a1**2*b2*ka + 1680*a1**2*b2*kc + 8*a1*a2**2*kc - 120*a1*a2*b1*ka - 120*a1*a2*b2*ka + 
240*a1*a2*b2*kc + 112*a1*b1*b2*ka + 112*a1*b2**2*ka - 240*a1*b2**2*kc - 7*a2**2*b1*ka - 7*a2**2*b2*ka + 7*a2*b1*b2*ka + 
7*a2*b2**2*ka) + 11*df(x1,t)**9*x1**2*x2**6*a1**6*vm*( - 6720*a1**3*ka + 7728*a1**2*a2*ka + 9240*a1**2*b1*ka + 10584*a1
**2*b2*ka - 28392*a1**2*b2*kc + 1296*a1*a2**2*ka + 5688*a1*a2*b1*ka + 4320*a1*a2*b2*ka - 3549*a1*a2*b2*kc - 1560*a1*b1*
b2*ka - 1560*a1*b2**2*ka + 3822*a1*b2**2*kc - 48*a2**3*ka + 270*a2**2*b1*ka + 288*a2**2*b2*ka - 182*a2**2*b2*kc - 468*a2
*b1*b2*ka - 468*a2*b2**2*ka + 182*a2*b2**2*kc) + 429*df(x1,t)**9*x1*x2**8*a1**8*( - 196*a1**2*kc + 253*a1*a2*kc + 196*a1
*b1*ka + 196*a1*b2*ka - 450*a1*b2*kc - a2**2*kc + 16*a2*b1*ka + 16*a2*b2*ka - 30*a2*b2*kc - 15*b1*b2*ka - 15*b2**2*ka + 
30*b2**2*kc) + 33*df(x1,t)**9*x1*x2**7*a1**7*vm*(912*a1**2*ka - 1140*a1*a2*ka - 1144*a1*b1*ka - 1248*a1*b2*ka + 2912*a1*
b2*kc - 76*a2**2*ka - 312*a2*b1*ka - 208*a2*b2*ka + 182*a2*b2*kc + 104*b1*b2*ka + 104*b2**2*ka - 195*b2**2*kc) + 1430*df
(x1,t)**9*x2**9*a1**9*(7*a1*kc - 9*a2*kc - 7*b1*ka - 7*b2*ka + 16*b2*kc) + 858*df(x1,t)**9*x2**8*a1**8*vm*( - 6*a1*ka + 
8*a2*ka + 7*b1*ka + 7*b2*ka - 15*b2*kc) + 143*df(x1,t)**8*x1**10*a1**8*( - 14*a1**3*kc + 21*a1**2*a2*kc + 14*a1**2*b1*ka
 + 14*a1**2*b2*ka - 42*a1**2*b2*kc + 3*a1*a2**2*kc + 21*a1*a2*b1*ka + 21*a1*a2*b2*ka - 90*a1*a2*b2*kc - 14*a1*b1*b2*ka -
 14*a1*b2**2*ka + 80*a1*b2**2*kc + 24*a2**2*b1*ka + 24*a2**2*b2*ka - 24*a2*b1*b2*ka - 24*a2*b2**2*ka) + 143*df(x1,t)**8*
x1**9*x2*a1**8*(168*a1**3*kc - 259*a1**2*a2*kc - 168*a1**2*b1*ka - 168*a1**2*b2*ka + 490*a1**2*b2*kc - 27*a1*a2**2*kc - 
210*a1*a2*b1*ka - 210*a1*a2*b2*ka + 810*a1*a2*b2*kc + 147*a1*b1*b2*ka + 147*a1*b2**2*ka - 720*a1*b2**2*kc - 192*a2**2*b1
*ka - 192*a2**2*b2*ka + 192*a2*b1*b2*ka + 192*a2*b2**2*ka) + df(x1,t)**8*x1**9*a1**6*vm*(50*a1**4*ka + 255*a1**3*a2*ka +
 110*a1**3*b1*ka - 1540*a1**3*b2*ka - 4004*a1**3*b2*kc - 888*a1**2*a2**2*ka + 1980*a1**2*a2*b1*ka + 5544*a1**2*a2*b2*ka 
- 3432*a1**2*a2*b2*kc + 1089*a1**2*b1*b2*ka + 1089*a1**2*b2**2*ka + 3003*a1**2*b2**2*kc + 948*a1*a2**3*ka + 2772*a1*a2**
2*b1*ka + 264*a1*a2**2*b2*ka - 3003*a1*a2**2*b2*kc - 3828*a1*a2*b1*b2*ka - 3828*a1*a2*b2**2*ka + 3003*a1*a2*b2**2*kc - 
390*a2**4*ka + 330*a2**3*b1*ka + 1188*a2**3*b2*ka - 198*a2**2*b1*b2*ka - 198*a2**2*b2**2*ka) + 858*df(x1,t)**8*x1**8*x2
**2*a1**8*( - 147*a1**3*kc + 231*a1**2*a2*kc + 147*a1**2*b1*ka + 147*a1**2*b2*ka - 420*a1**2*b2*kc + 18*a1*a2**2*kc + 
154*a1*a2*b1*ka + 154*a1*a2*b2*ka - 540*a1*a2*b2*kc - 112*a1*b1*b2*ka - 112*a1*b2**2*ka + 480*a1*b2**2*kc + 112*a2**2*b1
*ka + 112*a2**2*b2*ka - 112*a2*b1*b2*ka - 112*a2*b2**2*ka) + 3*df(x1,t)**8*x1**8*x2*a1**6*vm*( - 100*a1**4*ka - 180*a1**
3*a2*ka - 660*a1**3*b1*ka + 3564*a1**3*b2*ka + 14014*a1**3*b2*kc + 1292*a1**2*a2**2*ka - 7128*a1**2*a2*b1*ka - 15840*a1
**2*a2*b2*ka + 10296*a1**2*a2*b2*kc - 2464*a1**2*b1*b2*ka - 2464*a1**2*b2**2*ka - 9152*a1**2*b2**2*kc - 1852*a1*a2**3*ka
 - 7128*a1*a2**2*b1*ka - 1760*a1*a2**2*b2*ka + 7007*a1*a2**2*b2*kc + 9944*a1*a2*b1*b2*ka + 9944*a1*a2*b2**2*ka - 7007*a1
*a2*b2**2*kc + 780*a2**4*ka - 660*a2**3*b1*ka - 2376*a2**3*b2*ka + 396*a2**2*b1*b2*ka + 396*a2**2*b2**2*ka) + 12012*df(
x1,t)**8*x1**7*x2**3*a1**8*(32*a1**3*kc - 51*a1**2*a2*kc - 32*a1**2*b1*ka - 32*a1**2*b2*ka + 90*a1**2*b2*kc - 3*a1*a2**2
*kc - 28*a1*a2*b1*ka - 28*a1*a2*b2*ka + 90*a1*a2*b2*kc + 21*a1*b1*b2*ka + 21*a1*b2**2*ka - 80*a1*b2**2*kc - 16*a2**2*b1*
ka - 16*a2**2*b2*ka + 16*a2*b1*b2*ka + 16*a2*b2**2*ka) + 3*df(x1,t)**8*x1**7*x2**2*a1**6*vm*( - 300*a1**4*ka - 804*a1**3
*a2*ka + 4620*a1**3*b1*ka - 8316*a1**3*b2*ka - 64064*a1**3*b2*kc - 84*a1**2*a2**2*ka + 32340*a1**2*a2*b1*ka + 58520*a1**
2*a2*b2*ka - 40040*a1**2*a2*b2*kc + 6160*a1**2*b1*b2*ka + 6160*a1**2*b2**2*ka + 36036*a1**2*b2**2*kc + 4476*a1*a2**3*ka 
+ 23364*a1*a2**2*b1*ka + 8712*a1*a2**2*b2*ka - 21021*a1*a2**2*b2*kc - 32868*a1*a2*b1*b2*ka - 32868*a1*a2*b2**2*ka + 
21021*a1*a2*b2**2*kc - 1950*a2**4*ka + 1650*a2**3*b1*ka + 5940*a2**3*b2*ka - 990*a2**2*b1*b2*ka - 990*a2**2*b2**2*ka) + 
6006*df(x1,t)**8*x1**6*x2**4*a1**8*( - 126*a1**3*kc + 203*a1**2*a2*kc + 126*a1**2*b1*ka + 126*a1**2*b2*ka - 350*a1**2*b2
*kc + 9*a1*a2**2*kc + 91*a1*a2*b1*ka + 91*a1*a2*b2*ka - 270*a1*a2*b2*kc - 70*a1*b1*b2*ka - 70*a1*b2**2*ka + 240*a1*b2**2
*kc + 40*a2**2*b1*ka + 40*a2**2*b2*ka - 40*a2*b1*b2*ka - 40*a2*b2**2*ka) + 3*df(x1,t)**8*x1**6*x2**3*a1**6*vm*(3920*a1**
4*ka + 2128*a1**3*a2*ka - 17248*a1**3*b1*ka + 2464*a1**3*b2*ka + 168168*a1**3*b2*kc - 10052*a1**2*a2**2*ka - 81312*a1**2
*a2*b1*ka - 121968*a1**2*a2*b2*ka + 88088*a1**2*a2*b2*kc - 5544*a1**2*b1*b2*ka - 5544*a1**2*b2**2*ka - 80080*a1**2*b2**2
*kc - 5660*a1*a2**3*ka - 42240*a1*a2**2*b1*ka - 20240*a1*a2**2*b2*ka + 35035*a1*a2**2*b2*kc + 59840*a1*a2*b1*b2*ka + 
59840*a1*a2*b2**2*ka - 35035*a1*a2*b2**2*kc + 2600*a2**4*ka - 2200*a2**3*b1*ka - 7920*a2**3*b2*ka + 1320*a2**2*b1*b2*ka 
+ 1320*a2**2*b2**2*ka) + 6006*df(x1,t)**8*x1**5*x2**5*a1**8*(168*a1**3*kc - 273*a1**2*a2*kc - 168*a1**2*b1*ka - 168*a1**
2*b2*ka + 462*a1**2*b2*kc - 9*a1*a2**2*kc - 98*a1*a2*b1*ka - 98*a1*a2*b2*ka + 270*a1*a2*b2*kc + 77*a1*b1*b2*ka + 77*a1*
b2**2*ka - 240*a1*b2**2*kc - 32*a2**2*b1*ka - 32*a2**2*b2*ka + 32*a2*b1*b2*ka + 32*a2*b2**2*ka) + 3*df(x1,t)**8*x1**5*x2
**4*a1**6*vm*( - 13720*a1**4*ka + 3486*a1**3*a2*ka + 38808*a1**3*b1*ka + 24948*a1**3*b2*ka - 280280*a1**3*b2*kc + 27020*
a1**2*a2**2*ka + 124740*a1**2*a2*b1*ka + 157080*a1**2*a2*b2*ka - 120120*a1**2*a2*b2*kc - 3850*a1**2*b1*b2*ka - 3850*a1**
2*b2**2*ka + 110110*a1**2*b2**2*kc + 3860*a1*a2**3*ka + 45540*a1*a2**2*b1*ka + 25960*a1*a2**2*b2*ka - 35035*a1*a2**2*b2*
kc - 64900*a1*a2*b1*b2*ka - 64900*a1*a2*b2**2*ka + 35035*a1*a2*b2**2*kc - 1950*a2**4*ka + 1650*a2**3*b1*ka + 5940*a2**3*
b2*ka - 990*a2**2*b1*b2*ka - 990*a2**2*b2**2*ka) + 12012*df(x1,t)**8*x1**4*x2**6*a1**8*( - 77*a1**3*kc + 126*a1**2*a2*kc
 + 77*a1**2*b1*ka + 77*a1**2*b2*ka - 210*a1**2*b2*kc + 3*a1*a2**2*kc + 35*a1*a2*b1*ka + 35*a1*a2*b2*ka - 90*a1*a2*b2*kc 
- 28*a1*b1*b2*ka - 28*a1*b2**2*ka + 80*a1*b2**2*kc + 8*a2**2*b1*ka + 8*a2**2*b2*ka - 8*a2*b1*b2*ka - 8*a2*b2**2*ka) + 3*
df(x1,t)**8*x1**4*x2**5*a1**6*vm*(25200*a1**4*ka - 19320*a1**3*a2*ka - 55440*a1**3*b1*ka - 55440*a1**3*b2*ka + 308308*a1
**3*b2*kc - 34524*a1**2*a2**2*ka - 120120*a1**2*a2*b1*ka - 128128*a1**2*a2*b2*ka + 104104*a1**2*a2*b2*kc + 13552*a1**2*
b1*b2*ka + 13552*a1**2*b2**2*ka - 96096*a1**2*b2**2*kc - 1236*a1*a2**3*ka - 29304*a1*a2**2*b1*ka - 19008*a1*a2**2*b2*ka 
+ 21021*a1*a2**2*b2*kc + 41976*a1*a2*b1*b2*ka + 41976*a1*a2*b2**2*ka - 21021*a1*a2*b2**2*kc + 780*a2**4*ka - 660*a2**3*
b1*ka - 2376*a2**3*b2*ka + 396*a2**2*b1*b2*ka + 396*a2**2*b2**2*ka) + 1716*df(x1,t)**8*x1**3*x2**7*a1**8*(336*a1**3*kc -
 553*a1**2*a2*kc - 336*a1**2*b1*ka - 336*a1**2*b2*ka + 910*a1**2*b2*kc - 9*a1*a2**2*kc - 112*a1*a2*b1*ka - 112*a1*a2*b2*
ka + 270*a1*a2*b2*kc + 91*a1*b1*b2*ka + 91*a1*b2**2*ka - 240*a1*b2**2*kc - 16*a2**2*b1*ka - 16*a2**2*b2*ka + 16*a2*b1*b2
*ka + 16*a2*b2**2*ka) + 3*df(x1,t)**8*x1**3*x2**6*a1**6*vm*( - 27300*a1**4*ka + 30940*a1**3*a2*ka + 50820*a1**3*b1*ka + 
57596*a1**3*b2*ka - 224224*a1**3*b2*kc + 24388*a1**2*a2**2*ka + 71148*a1**2*a2*b1*ka + 64680*a1**2*a2*b2*ka - 56056*a1**
2*a2*b2*kc - 12936*a1**2*b1*b2*ka - 12936*a1**2*b2**2*ka + 52052*a1**2*b2**2*kc + 52*a1*a2**3*ka + 10428*a1*a2**2*b1*ka 
+ 7480*a1*a2**2*b2*ka - 7007*a1*a2**2*b2*kc - 15004*a1*a2*b1*b2*ka - 15004*a1*a2*b2**2*ka + 7007*a1*a2*b2**2*kc - 130*a2
**4*ka + 110*a2**3*b1*ka + 396*a2**3*b2*ka - 66*a2**2*b1*b2*ka - 66*a2**2*b2**2*ka) + 429*df(x1,t)**8*x1**2*x2**8*a1**8*
( - 546*a1**3*kc + 903*a1**2*a2*kc + 546*a1**2*b1*ka + 546*a1**2*b2*ka - 1470*a1**2*b2*kc + 9*a1*a2**2*kc + 119*a1*a2*b1
*ka + 119*a1*a2*b2*ka - 270*a1*a2*b2*kc - 98*a1*b1*b2*ka - 98*a1*b2**2*ka + 240*a1*b2**2*kc + 8*a2**2*b1*ka + 8*a2**2*b2
*ka - 8*a2*b1*b2*ka - 8*a2*b2**2*ka) + 33*df(x1,t)**8*x1**2*x2**7*a1**7*vm*(1600*a1**3*ka - 2256*a1**2*a2*ka - 2640*a1**
2*b1*ka - 3024*a1**2*b2*ka + 9464*a1**2*b2*kc - 836*a1*a2**2*ka - 2160*a1*a2*b1*ka - 1680*a1*a2*b2*ka + 1560*a1*a2*b2*kc
 + 520*a1*b1*b2*ka + 520*a1*b2**2*ka - 1456*a1*b2**2*kc + 4*a2**3*ka - 144*a2**2*b1*ka - 112*a2**2*b2*ka + 91*a2**2*b2*
kc + 208*a2*b1*b2*ka + 208*a2*b2**2*ka - 91*a2*b2**2*kc) + 143*df(x1,t)**8*x1*x2**9*a1**9*(392*a1**2*kc - 651*a1*a2*kc -
 392*a1*b1*ka - 392*a1*b2*ka + 1050*a1*b2*kc - 3*a2**2*kc - 42*a2*b1*ka - 42*a2*b2*ka + 90*a2*b2*kc + 35*b1*b2*ka + 35*
b2**2*ka - 80*b2**2*kc) + 33*df(x1,t)**8*x1*x2**8*a1**8*vm*( - 570*a1**2*ka + 927*a1*a2*ka + 858*a1*b1*ka + 936*a1*b2*ka
 - 2548*a1*b2*kc + 132*a2**2*ka + 312*a2*b1*ka + 208*a2*b2*ka - 208*a2*b2*kc - 91*b1*b2*ka - 91*b2**2*ka + 195*b2**2*kc)
 + 2002*df(x1,t)**8*x2**10*a1**10*( - 3*a1*kc + 5*a2*kc + 3*b1*ka + 3*b2*ka - 8*b2*kc) + 286*df(x1,t)**8*x2**9*a1**9*vm*
(10*a1*ka - 18*a2*ka - 14*b1*ka - 14*b2*ka + 35*b2*kc) + 91*df(x1,t)**7*x1**11*a1**9*( - 8*a1**3*kc + 11*a1**2*a2*kc + 8
*a1**2*b1*ka + 8*a1**2*b2*ka - 30*a1**2*b2*kc + 11*a1*a2**2*kc + 22*a1*a2*b1*ka + 22*a1*a2*b2*ka - 110*a1*a2*b2*kc - 11*
a1*b1*b2*ka - 11*a1*b2**2*ka + 88*a1*b2**2*kc + 33*a2**2*b1*ka + 33*a2**2*b2*ka - 33*a2*b1*b2*ka - 33*a2*b2**2*ka) + 
1001*df(x1,t)**7*x1**10*x2*a1**9*(10*a1**3*kc - 16*a1**2*a2*kc - 10*a1**2*b1*ka - 10*a1**2*b2*ka + 36*a1**2*b2*kc - 10*
a1*a2**2*kc - 22*a1*a2*b1*ka - 22*a1*a2*b2*ka + 100*a1*a2*b2*kc + 12*a1*b1*b2*ka + 12*a1*b2**2*ka - 80*a1*b2**2*kc - 27*
a2**2*b1*ka - 27*a2**2*b2*ka + 27*a2*b1*b2*ka + 27*a2*b2**2*ka) + df(x1,t)**7*x1**10*a1**7*vm*(16*a1**4*ka + 240*a1**3*
a2*ka + 22*a1**3*b1*ka - 858*a1**3*b2*ka - 2002*a1**3*b2*kc - 1026*a1**2*a2**2*ka + 990*a1**2*a2*b1*ka + 3564*a1**2*a2*
b2*ka - 3003*a1**2*a2*b2*kc + 770*a1**2*b1*b2*ka + 770*a1**2*b2**2*ka + 2002*a1**2*b2**2*kc + 1296*a1*a2**3*ka + 2772*a1
*a2**2*b1*ka + 264*a1*a2**2*b2*ka - 3432*a1*a2**2*b2*kc - 3036*a1*a2*b1*b2*ka - 3036*a1*a2*b2**2*ka + 3432*a1*a2*b2**2*
kc - 600*a2**4*ka + 660*a2**3*b1*ka + 1848*a2**3*b2*ka - 660*a2**2*b1*b2*ka - 660*a2**2*b2**2*ka) + 3003*df(x1,t)**7*x1
**9*x2**2*a1**9*( - 20*a1**3*kc + 35*a1**2*a2*kc + 20*a1**2*b1*ka + 20*a1**2*b2*ka - 70*a1**2*b2*kc + 15*a1*a2**2*kc + 
36*a1*a2*b1*ka + 36*a1*a2*b2*ka - 150*a1*a2*b2*kc - 21*a1*b1*b2*ka - 21*a1*b2**2*ka + 120*a1*b2**2*kc + 36*a2**2*b1*ka +
 36*a2**2*b2*ka - 36*a2*b1*b2*ka - 36*a2*b2**2*ka) + df(x1,t)**7*x1**9*x2*a1**7*vm*( - 200*a1**4*ka - 1075*a1**3*a2*ka -
 550*a1**3*b1*ka + 7700*a1**3*b2*ka + 24024*a1**3*b2*kc + 7083*a1**2*a2**2*ka - 12870*a1**2*a2*b1*ka - 36432*a1**2*a2*b2
*ka + 30030*a1**2*a2*b2*kc - 6534*a1**2*b1*b2*ka - 6534*a1**2*b2**2*ka - 21021*a1**2*b2**2*kc - 9864*a1*a2**3*ka - 24948
*a1*a2**2*b1*ka - 5016*a1*a2**2*b2*ka + 27456*a1*a2**2*b2*kc + 28116*a1*a2*b1*b2*ka + 28116*a1*a2*b2**2*ka - 27456*a1*a2
*b2**2*kc + 4200*a2**4*ka - 4620*a2**3*b1*ka - 12936*a2**3*b2*ka + 4620*a2**2*b1*b2*ka + 4620*a2**2*b2**2*ka) + 6006*df(
x1,t)**7*x1**8*x2**3*a1**9*(35*a1**3*kc - 65*a1**2*a2*kc - 35*a1**2*b1*ka - 35*a1**2*b2*ka + 120*a1**2*b2*kc - 20*a1*a2
**2*kc - 52*a1*a2*b1*ka - 52*a1*a2*b2*ka + 200*a1*a2*b2*kc + 32*a1*b1*b2*ka + 32*a1*b2**2*ka - 160*a1*b2**2*kc - 42*a2**
2*b1*ka - 42*a2**2*b2*ka + 42*a2*b1*b2*ka + 42*a2*b2**2*ka) + 6*df(x1,t)**7*x1**8*x2**2*a1**7*vm*(100*a1**4*ka - 150*a1
**3*a2*ka + 825*a1**3*b1*ka - 4455*a1**3*b2*ka - 21021*a1**3*b2*kc - 2700*a1**2*a2**2*ka + 11682*a1**2*a2*b1*ka + 26730*
a1**2*a2*b2*ka - 22022*a1**2*a2*b2*kc + 3696*a1**2*b1*b2*ka + 3696*a1**2*b2**2*ka + 16016*a1**2*b2**2*kc + 5460*a1*a2**3
*ka + 16170*a1*a2**2*b1*ka + 4620*a1*a2**2*b2*ka - 16016*a1*a2**2*b2*kc - 18634*a1*a2*b1*b2*ka - 18634*a1*a2*b2**2*ka + 
16016*a1*a2*b2**2*kc - 2100*a2**4*ka + 2310*a2**3*b1*ka + 6468*a2**3*b2*ka - 2310*a2**2*b1*b2*ka - 2310*a2**2*b2**2*ka) 
+ 6006*df(x1,t)**7*x1**7*x2**4*a1**9*( - 80*a1**3*kc + 155*a1**2*a2*kc + 80*a1**2*b1*ka + 80*a1**2*b2*ka - 270*a1**2*b2*
kc + 35*a1*a2**2*kc + 98*a1*a2*b1*ka + 98*a1*a2*b2*ka - 350*a1*a2*b2*kc - 63*a1*b1*b2*ka - 63*a1*b2**2*ka + 280*a1*b2**2
*kc + 63*a2**2*b1*ka + 63*a2**2*b2*ka - 63*a2*b1*b2*ka - 63*a2*b2**2*ka) + 12*df(x1,t)**7*x1**7*x2**3*a1**7*vm*(100*a1**
4*ka + 1115*a1**3*a2*ka - 1925*a1**3*b1*ka + 3465*a1**3*b2*ka + 32032*a1**3*b2*kc + 105*a1**2*a2**2*ka - 17787*a1**2*a2*
b1*ka - 33495*a1**2*a2*b2*ka + 28028*a1**2*a2*b2*kc - 3080*a1**2*b1*b2*ka - 3080*a1**2*b2**2*ka - 21021*a1**2*b2**2*kc -
 5166*a1*a2**3*ka - 17787*a1*a2**2*b1*ka - 6314*a1*a2**2*b2*ka + 16016*a1*a2**2*b2*kc + 20867*a1*a2*b1*b2*ka + 20867*a1*
a2*b2**2*ka - 16016*a1*a2*b2**2*kc + 1750*a2**4*ka - 1925*a2**3*b1*ka - 5390*a2**3*b2*ka + 1925*a2**2*b1*b2*ka + 1925*a2
**2*b2**2*ka) + 126126*df(x1,t)**7*x1**6*x2**5*a1**9*(6*a1**3*kc - 12*a1**2*a2*kc - 6*a1**2*b1*ka - 6*a1**2*b2*ka + 20*
a1**2*b2*kc - 2*a1*a2**2*kc - 6*a1*a2*b1*ka - 6*a1*a2*b2*ka + 20*a1*a2*b2*kc + 4*a1*b1*b2*ka + 4*a1*b2**2*ka - 16*a1*b2
**2*kc - 3*a2**2*b1*ka - 3*a2**2*b2*ka + 3*a2*b1*b2*ka + 3*a2*b2**2*ka) + 42*df(x1,t)**7*x1**6*x2**4*a1**7*vm*( - 280*a1
**4*ka - 680*a1**3*a2*ka + 1540*a1**3*b1*ka - 220*a1**3*b2*ka - 18018*a1**3*b2*kc + 1554*a1**2*a2**2*ka + 9636*a1**2*a2*
b1*ka + 15114*a1**2*a2*b2*ka - 13013*a1**2*a2*b2*kc + 594*a1**2*b1*b2*ka + 594*a1**2*b2**2*ka + 10010*a1**2*b2**2*kc + 
1740*a1*a2**3*ka + 6930*a1*a2**2*b1*ka + 2860*a1*a2**2*b2*ka - 5720*a1*a2**2*b2*kc - 8250*a1*a2*b1*b2*ka - 8250*a1*a2*b2
**2*ka + 5720*a1*a2*b2**2*kc - 500*a2**4*ka + 550*a2**3*b1*ka + 1540*a2**3*b2*ka - 550*a2**2*b1*b2*ka - 550*a2**2*b2**2*
ka) + 42042*df(x1,t)**7*x1**5*x2**6*a1**9*( - 20*a1**3*kc + 41*a1**2*a2*kc + 20*a1**2*b1*ka + 20*a1**2*b2*ka - 66*a1**2*
b2*kc + 5*a1*a2**2*kc + 16*a1*a2*b1*ka + 16*a1*a2*b2*ka - 50*a1*a2*b2*kc - 11*a1*b1*b2*ka - 11*a1*b2**2*ka + 40*a1*b2**2
*kc + 6*a2**2*b1*ka + 6*a2**2*b2*ka - 6*a2*b1*b2*ka - 6*a2*b2**2*ka) + 42*df(x1,t)**7*x1**5*x2**5*a1**7*vm*(784*a1**4*ka
 + 375*a1**3*a2*ka - 2772*a1**3*b1*ka - 1782*a1**3*b2*ka + 24024*a1**3*b2*kc - 3447*a1**2*a2**2*ka - 11880*a1**2*a2*b1*
ka - 15642*a1**2*a2*b2*ka + 14014*a1**2*a2*b2*kc + 330*a1**2*b1*b2*ka + 330*a1**2*b2**2*ka - 11011*a1**2*b2**2*kc - 1308
*a1*a2**3*ka - 6006*a1*a2**2*b1*ka - 2772*a1*a2**2*b2*ka + 4576*a1*a2**2*b2*kc + 7238*a1*a2*b1*b2*ka + 7238*a1*a2*b2**2*
ka - 4576*a1*a2*b2**2*kc + 300*a2**4*ka - 330*a2**3*b1*ka - 924*a2**3*b2*ka + 330*a2**2*b1*b2*ka + 330*a2**2*b2**2*ka) +
 12012*df(x1,t)**7*x1**4*x2**7*a1**9*(55*a1**3*kc - 115*a1**2*a2*kc - 55*a1**2*b1*ka - 55*a1**2*b2*ka + 180*a1**2*b2*kc 
- 10*a1*a2**2*kc - 34*a1*a2*b1*ka - 34*a1*a2*b2*ka + 100*a1*a2*b2*kc + 24*a1*b1*b2*ka + 24*a1*b2**2*ka - 80*a1*b2**2*kc 
- 9*a2**2*b1*ka - 9*a2**2*b2*ka + 9*a2*b1*b2*ka + 9*a2*b2**2*ka) + 84*df(x1,t)**7*x1**4*x2**6*a1**7*vm*( - 600*a1**4*ka 
+ 350*a1**3*a2*ka + 1650*a1**3*b1*ka + 1650*a1**3*b2*ka - 11011*a1**3*b2*kc + 1878*a1**2*a2**2*ka + 4785*a1**2*a2*b1*ka 
+ 5313*a1**2*a2*b2*ka - 5005*a1**2*a2*b2*kc - 484*a1**2*b1*b2*ka - 484*a1**2*b2**2*ka + 4004*a1**2*b2**2*kc + 306*a1*a2
**3*ka + 1617*a1*a2**2*b1*ka + 814*a1*a2**2*b2*ka - 1144*a1*a2**2*b2*kc - 1969*a1*a2*b1*b2*ka - 1969*a1*a2*b2**2*ka + 
1144*a1*a2*b2**2*kc - 50*a2**4*ka + 55*a2**3*b1*ka + 154*a2**3*b2*ka - 55*a2**2*b1*b2*ka - 55*a2**2*b2**2*ka) + 9009*df(
x1,t)**7*x1**3*x2**8*a1**9*( - 40*a1**3*kc + 85*a1**2*a2*kc + 40*a1**2*b1*ka + 40*a1**2*b2*ka - 130*a1**2*b2*kc + 5*a1*
a2**2*kc + 18*a1*a2*b1*ka + 18*a1*a2*b2*ka - 50*a1*a2*b2*kc - 13*a1*b1*b2*ka - 13*a1*b2**2*ka + 40*a1*b2**2*kc + 3*a2**2
*b1*ka + 3*a2**2*b2*ka - 3*a2*b1*b2*ka - 3*a2*b2**2*ka) + 12*df(x1,t)**7*x1**3*x2**7*a1**7*vm*(3900*a1**4*ka - 5025*a1**
3*a2*ka - 9075*a1**3*b1*ka - 10285*a1**3*b2*ka + 48048*a1**3*b2*kc - 8115*a1**2*a2**2*ka - 17061*a1**2*a2*b1*ka - 16005*
a1**2*a2*b2*ka + 16016*a1**2*a2*b2*kc + 2772*a1**2*b1*b2*ka + 2772*a1**2*b2**2*ka - 13013*a1**2*b2**2*kc - 570*a1*a2**3*
ka - 3465*a1*a2**2*b1*ka - 1870*a1*a2**2*b2*ka + 2288*a1*a2**2*b2*kc + 4257*a1*a2*b1*b2*ka + 4257*a1*a2*b2**2*ka - 2288*
a1*a2*b2**2*kc + 50*a2**4*ka - 55*a2**3*b1*ka - 154*a2**3*b2*ka + 55*a2**2*b1*b2*ka + 55*a2**2*b2**2*ka) + 1001*df(x1,t)
**7*x1**2*x2**9*a1**9*(130*a1**3*kc - 280*a1**2*a2*kc - 130*a1**2*b1*ka - 130*a1**2*b2*ka + 420*a1**2*b2*kc - 10*a1*a2**
2*kc - 38*a1*a2*b1*ka - 38*a1*a2*b2*ka + 100*a1*a2*b2*kc + 28*a1*b1*b2*ka + 28*a1*b2**2*ka - 80*a1*b2**2*kc - 3*a2**2*b1
*ka - 3*a2**2*b2*ka + 3*a2*b1*b2*ka + 3*a2*b2**2*ka) + 33*df(x1,t)**7*x1**2*x2**8*a1**8*vm*( - 800*a1**3*ka + 1440*a1**2
*a2*ka + 1650*a1**2*b1*ka + 1890*a1**2*b2*ka - 7098*a1**2*b2*kc + 990*a1*a2**2*ka + 1818*a1*a2*b1*ka + 1440*a1*a2*b2*ka 
- 1547*a1*a2*b2*kc - 390*a1*b1*b2*ka - 390*a1*b2**2*ka + 1274*a1*b2**2*kc + 24*a2**3*ka + 168*a2**2*b1*ka + 96*a2**2*b2*
ka - 104*a2**2*b2*kc - 208*a2*b1*b2*ka - 208*a2*b2**2*ka + 104*a2*b2**2*kc) + 1001*df(x1,t)**7*x1*x2**10*a1**10*( - 28*
a1**2*kc + 61*a1*a2*kc + 28*a1*b1*ka + 28*a1*b2*ka - 90*a1*b2*kc + a2**2*kc + 4*a2*b1*ka + 4*a2*b2*ka - 10*a2*b2*kc - 3*
b1*b2*ka - 3*b2**2*ka + 8*b2**2*kc) + 11*df(x1,t)**7*x1*x2**9*a1**9*vm*(760*a1**2*ka - 1665*a1*a2*ka - 1430*a1*b1*ka - 
1560*a1*b2*ka + 5096*a1*b2*kc - 423*a2**2*ka - 702*a2*b1*ka - 468*a2*b2*ka + 546*a2*b2*kc + 182*b1*b2*ka + 182*b2**2*ka 
- 455*b2**2*kc) + 546*df(x1,t)**7*x2**11*a1**11*(5*a1*kc - 11*a2*kc - 5*b1*ka - 5*b2*ka + 16*b2*kc) + 286*df(x1,t)**7*x2
**10*a1**10*vm*( - 4*a1*ka + 10*a2*ka + 7*b1*ka + 7*b2*ka - 21*b2*kc) + 91*df(x1,t)**6*x1**12*a1**10*( - 2*a1**3*kc + a1
**2*a2*kc + 2*a1**2*b1*ka + 2*a1**2*b2*ka - 10*a1**2*b2*kc + 11*a1*a2**2*kc + 11*a1*a2*b1*ka + 11*a1*a2*b2*ka - 66*a1*a2
*b2*kc - 4*a1*b1*b2*ka - 4*a1*b2**2*ka + 48*a1*b2**2*kc + 22*a2**2*b1*ka + 22*a2**2*b2*ka - 22*a2*b1*b2*ka - 22*a2*b2**2
*ka) + 91*df(x1,t)**6*x1**11*x2*a1**10*(32*a1**3*kc - 41*a1**2*a2*kc - 32*a1**2*b1*ka - 32*a1**2*b2*ka + 150*a1**2*b2*kc
 - 121*a1*a2**2*kc - 132*a1*a2*b1*ka - 132*a1*a2*b2*ka + 726*a1*a2*b2*kc + 55*a1*b1*b2*ka + 55*a1*b2**2*ka - 528*a1*b2**
2*kc - 220*a2**2*b1*ka - 220*a2**2*b2*ka + 220*a2*b1*b2*ka + 220*a2*b2**2*ka) + df(x1,t)**6*x1**11*a1**8*vm*(2*a1**4*ka 
+ 134*a1**3*a2*ka + 2*a1**3*b1*ka - 306*a1**3*b2*ka - 728*a1**3*b2*kc - 690*a1**2*a2**2*ka + 330*a1**2*a2*b1*ka + 1485*
a1**2*a2*b2*ka - 2002*a1**2*a2*b2*kc + 374*a1**2*b1*b2*ka + 374*a1**2*b2**2*ka + 1001*a1**2*b2**2*kc + 1047*a1*a2**3*ka 
+ 1980*a1*a2**2*b1*ka + 495*a1*a2**2*b2*ka - 3003*a1*a2**2*b2*kc - 1683*a1*a2*b1*b2*ka - 1683*a1*a2*b2**2*ka + 3003*a1*
a2*b2**2*kc - 588*a2**4*ka + 924*a2**3*b1*ka + 1980*a2**3*b2*ka - 1056*a2**2*b1*b2*ka - 1056*a2**2*b2**2*ka) + 5005*df(
x1,t)**6*x1**10*x2**2*a1**10*( - 4*a1**3*kc + 7*a1**2*a2*kc + 4*a1**2*b1*ka + 4*a1**2*b2*ka - 18*a1**2*b2*kc + 11*a1*a2
**2*kc + 13*a1*a2*b1*ka + 13*a1*a2*b2*ka - 66*a1*a2*b2*kc - 6*a1*b1*b2*ka - 6*a1*b2**2*ka + 48*a1*b2**2*kc + 18*a2**2*b1
*ka + 18*a2**2*b2*ka - 18*a2*b1*b2*ka - 18*a2*b2**2*ka) + df(x1,t)**6*x1**10*x2*a1**8*vm*( - 48*a1**4*ka - 984*a1**3*a2*
ka - 88*a1**3*b1*ka + 3432*a1**3*b2*ka + 10010*a1**3*b2*kc + 6455*a1**2*a2**2*ka - 5280*a1**2*a2*b1*ka - 18700*a1**2*a2*
b2*ka + 22022*a1**2*a2*b2*kc - 3850*a1**2*b1*b2*ka - 3850*a1**2*b2**2*ka - 12012*a1**2*b2**2*kc - 9927*a1*a2**3*ka - 
20592*a1*a2**2*b1*ka - 5940*a1*a2**2*b2*ka + 27027*a1*a2**2*b2*kc + 18612*a1*a2*b1*b2*ka + 18612*a1*a2*b2**2*ka - 27027*
a1*a2*b2**2*kc + 4704*a2**4*ka - 7392*a2**3*b1*ka - 15840*a2**3*b2*ka + 8448*a2**2*b1*b2*ka + 8448*a2**2*b2**2*ka) + 
5005*df(x1,t)**6*x1**9*x2**3*a1**10*(16*a1**3*kc - 33*a1**2*a2*kc - 16*a1**2*b1*ka - 16*a1**2*b2*ka + 70*a1**2*b2*kc - 
33*a1*a2**2*kc - 42*a1*a2*b1*ka - 42*a1*a2*b2*ka + 198*a1*a2*b2*kc + 21*a1*b1*b2*ka + 21*a1*b2**2*ka - 144*a1*b2**2*kc -
 48*a2**2*b1*ka - 48*a2**2*b2*ka + 48*a2*b1*b2*ka + 48*a2*b2**2*ka) + df(x1,t)**6*x1**9*x2**2*a1**8*vm*(300*a1**4*ka + 
1750*a1**3*a2*ka + 1100*a1**3*b1*ka - 15400*a1**3*b2*ka - 60060*a1**3*b2*kc - 23445*a1**2*a2**2*ka + 34650*a1**2*a2*b1*
ka + 99000*a1**2*a2*b2*ka - 108108*a1**2*a2*b2*kc + 16335*a1**2*b1*b2*ka + 16335*a1**2*b2**2*ka + 63063*a1**2*b2**2*kc +
 41724*a1*a2**3*ka + 93456*a1*a2**2*b1*ka + 29700*a1*a2**2*b2*ka - 108108*a1*a2**2*b2*kc - 88308*a1*a2*b1*b2*ka - 88308*
a1*a2*b2**2*ka + 108108*a1*a2*b2**2*kc - 16464*a2**4*ka + 25872*a2**3*b1*ka + 55440*a2**3*b2*ka - 29568*a2**2*b1*b2*ka -
 29568*a2**2*b2**2*ka) + 30030*df(x1,t)**6*x1**8*x2**4*a1**10*( - 7*a1**3*kc + 16*a1**2*a2*kc + 7*a1**2*b1*ka + 7*a1**2*
b2*ka - 30*a1**2*b2*kc + 11*a1*a2**2*kc + 15*a1*a2*b1*ka + 15*a1*a2*b2*ka - 66*a1*a2*b2*kc - 8*a1*b1*b2*ka - 8*a1*b2**2*
ka + 48*a1*b2**2*kc + 14*a2**2*b1*ka + 14*a2**2*b2*ka - 14*a2*b1*b2*ka - 14*a2*b2**2*ka) + 6*df(x1,t)**6*x1**8*x2**3*a1
**8*vm*( - 100*a1**4*ka + 700*a1**3*a2*ka - 1100*a1**3*b1*ka + 5940*a1**3*b2*ka + 35035*a1**3*b2*kc + 6330*a1**2*a2**2*
ka - 21120*a1**2*a2*b1*ka - 49500*a1**2*a2*b2*ka + 52052*a1**2*a2*b2*kc - 6160*a1**2*b1*b2*ka - 6160*a1**2*b2**2*ka - 
32032*a1**2*b2**2*kc - 17010*a1*a2**3*ka - 40656*a1*a2**2*b1*ka - 13860*a1*a2**2*b2*ka + 42042*a1*a2**2*b2*kc + 39732*a1
*a2*b1*b2*ka + 39732*a1*a2*b2**2*ka - 42042*a1*a2*b2**2*kc + 5488*a2**4*ka - 8624*a2**3*b1*ka - 18480*a2**3*b2*ka + 9856
*a2**2*b1*b2*ka + 9856*a2**2*b2**2*ka) + 6006*df(x1,t)**6*x1**7*x2**5*a1**10*(64*a1**3*kc - 157*a1**2*a2*kc - 64*a1**2*
b1*ka - 64*a1**2*b2*ka + 270*a1**2*b2*kc - 77*a1*a2**2*kc - 112*a1*a2*b1*ka - 112*a1*a2*b2*ka + 462*a1*a2*b2*kc + 63*a1*
b1*b2*ka + 63*a1*b2**2*ka - 336*a1*b2**2*kc - 84*a2**2*b1*ka - 84*a2**2*b2*ka + 84*a2*b1*b2*ka + 84*a2*b2**2*ka) + 6*df(
x1,t)**6*x1**7*x2**4*a1**8*vm*( - 150*a1**4*ka - 3790*a1**3*a2*ka + 3850*a1**3*b1*ka - 6930*a1**3*b2*ka - 80080*a1**3*b2
*kc - 1120*a1**2*a2**2*ka + 48510*a1**2*a2*b1*ka + 94325*a1**2*a2*b2*ka - 98098*a1**2*a2*b2*kc + 7700*a1**2*b1*b2*ka + 
7700*a1**2*b2**2*ka + 63063*a1**2*b2**2*kc + 26691*a1*a2**3*ka + 67452*a1*a2**2*b1*ka + 24255*a1*a2**2*b2*ka - 63063*a1*
a2**2*b2*kc - 67683*a1*a2*b1*b2*ka - 67683*a1*a2*b2**2*ka + 63063*a1*a2*b2**2*kc - 6860*a2**4*ka + 10780*a2**3*b1*ka + 
23100*a2**3*b2*ka - 12320*a2**2*b1*b2*ka - 12320*a2**2*b2**2*ka) + 42042*df(x1,t)**6*x1**6*x2**6*a1**10*( - 12*a1**3*kc 
+ 31*a1**2*a2*kc + 12*a1**2*b1*ka + 12*a1**2*b2*ka - 50*a1**2*b2*kc + 11*a1*a2**2*kc + 17*a1*a2*b1*ka + 17*a1*a2*b2*ka -
 66*a1*a2*b2*kc - 10*a1*b1*b2*ka - 10*a1*b2**2*ka + 48*a1*b2**2*kc + 10*a2**2*b1*ka + 10*a2**2*b2*ka - 10*a2*b1*b2*ka - 
10*a2*b2**2*ka) + 42*df(x1,t)**6*x1**6*x2**5*a1**8*vm*(168*a1**4*ka + 936*a1**3*a2*ka - 1232*a1**3*b1*ka + 176*a1**3*b2*
ka + 18018*a1**3*b2*kc - 1995*a1**2*a2**2*ka - 10560*a1**2*a2*b1*ka - 17160*a1**2*a2*b2*ka + 18018*a1**2*a2*b2*kc - 594*
a1**2*b1*b2*ka - 594*a1**2*b2**2*ka - 12012*a1**2*b2**2*kc - 3981*a1*a2**3*ka - 10560*a1*a2**2*b1*ka - 3960*a1*a2**2*b2*
ka + 9009*a1*a2**2*b2*kc + 10824*a1*a2*b1*b2*ka + 10824*a1*a2*b2**2*ka - 9009*a1*a2*b2**2*kc + 784*a2**4*ka - 1232*a2**3
*b1*ka - 2640*a2**3*b2*ka + 1408*a2**2*b1*b2*ka + 1408*a2**2*b2**2*ka) + 30030*df(x1,t)**6*x1**5*x2**7*a1**10*(16*a1**3*
kc - 43*a1**2*a2*kc - 16*a1**2*b1*ka - 16*a1**2*b2*ka + 66*a1**2*b2*kc - 11*a1*a2**2*kc - 18*a1*a2*b1*ka - 18*a1*a2*b2*
ka + 66*a1*a2*b2*kc + 11*a1*b1*b2*ka + 11*a1*b2**2*ka - 48*a1*b2**2*kc - 8*a2**2*b1*ka - 8*a2**2*b2*ka + 8*a2*b1*b2*ka +
 8*a2*b2**2*ka) + 42*df(x1,t)**6*x1**5*x2**6*a1**8*vm*( - 392*a1**4*ka - 666*a1**3*a2*ka + 1848*a1**3*b1*ka + 1188*a1**3
*b2*ka - 20020*a1**3*b2*kc + 3885*a1**2*a2**2*ka + 10890*a1**2*a2*b1*ka + 14850*a1**2*a2*b2*ka - 16016*a1**2*a2*b2*kc - 
275*a1**2*b1*b2*ka - 275*a1**2*b2**2*ka + 11011*a1**2*b2**2*kc + 2766*a1*a2**3*ka + 7656*a1*a2**2*b1*ka + 2970*a1*a2**2*
b2*ka - 6006*a1*a2**2*b2*kc - 7986*a1*a2*b1*b2*ka - 7986*a1*a2*b2**2*ka + 6006*a1*a2*b2**2*kc - 392*a2**4*ka + 616*a2**3
*b1*ka + 1320*a2**3*b2*ka - 704*a2**2*b1*b2*ka - 704*a2**2*b2**2*ka) + 15015*df(x1,t)**6*x1**4*x2**8*a1**10*( - 22*a1**3
*kc + 61*a1**2*a2*kc + 22*a1**2*b1*ka + 22*a1**2*b2*ka - 90*a1**2*b2*kc + 11*a1*a2**2*kc + 19*a1*a2*b1*ka + 19*a1*a2*b2*
ka - 66*a1*a2*b2*kc - 12*a1*b1*b2*ka - 12*a1*b2**2*ka + 48*a1*b2**2*kc + 6*a2**2*b1*ka + 6*a2**2*b2*ka - 6*a2*b1*b2*ka -
 6*a2*b2**2*ka) + 12*df(x1,t)**6*x1**4*x2**7*a1**8*vm*(1800*a1**4*ka - 500*a1**3*a2*ka - 6600*a1**3*b1*ka - 6600*a1**3*
b2*ka + 55055*a1**3*b2*kc - 13015*a1**2*a2**2*ka - 26400*a1**2*a2*b1*ka - 30250*a1**2*a2*b2*ka + 34034*a1**2*a2*b2*kc + 
2420*a1**2*b1*b2*ka + 2420*a1**2*b2**2*ka - 24024*a1**2*b2**2*kc - 4317*a1*a2**3*ka - 12408*a1*a2**2*b1*ka - 4950*a1*a2
**2*b2*ka + 9009*a1*a2**2*b2*kc + 13134*a1*a2*b1*b2*ka + 13134*a1*a2*b2**2*ka - 9009*a1*a2*b2**2*kc + 392*a2**4*ka - 616
*a2**3*b1*ka - 1320*a2**3*b2*ka + 704*a2**2*b1*b2*ka + 704*a2**2*b2**2*ka) + 5005*df(x1,t)**6*x1**3*x2**9*a1**10*(32*a1
**3*kc - 91*a1**2*a2*kc - 32*a1**2*b1*ka - 32*a1**2*b2*ka + 130*a1**2*b2*kc - 11*a1*a2**2*kc - 20*a1*a2*b1*ka - 20*a1*a2
*b2*ka + 66*a1*a2*b2*kc + 13*a1*b1*b2*ka + 13*a1*b2**2*ka - 48*a1*b2**2*kc - 4*a2**2*b1*ka - 4*a2**2*b2*ka + 4*a2*b1*b2*
ka + 4*a2*b2**2*ka) + 3*df(x1,t)**6*x1**3*x2**8*a1**8*vm*( - 5850*a1**4*ka + 9050*a1**3*a2*ka + 18150*a1**3*b1*ka + 
20570*a1**3*b2*ka - 120120*a1**3*b2*kc + 28590*a1**2*a2**2*ka + 47190*a1**2*a2*b1*ka + 45375*a1**2*a2*b2*ka - 54054*a1**
2*a2*b2*kc - 6930*a1**2*b1*b2*ka - 6930*a1**2*b2**2*ka + 39039*a1**2*b2**2*kc + 4485*a1*a2**3*ka + 13332*a1*a2**2*b1*ka 
+ 5445*a1*a2**2*b2*ka - 9009*a1*a2**2*b2*kc - 14289*a1*a2*b1*b2*ka - 14289*a1*a2*b2**2*ka + 9009*a1*a2*b2**2*kc - 196*a2
**4*ka + 308*a2**3*b1*ka + 660*a2**3*b2*ka - 352*a2**2*b1*b2*ka - 352*a2**2*b2**2*ka) + 1001*df(x1,t)**6*x1**2*x2**10*a1
**10*( - 52*a1**3*kc + 151*a1**2*a2*kc + 52*a1**2*b1*ka + 52*a1**2*b2*ka - 210*a1**2*b2*kc + 11*a1*a2**2*kc + 21*a1*a2*
b1*ka + 21*a1*a2*b2*ka - 66*a1*a2*b2*kc - 14*a1*b1*b2*ka - 14*a1*b2**2*ka + 48*a1*b2**2*kc + 2*a2**2*b1*ka + 2*a2**2*b2*
ka - 2*a2*b1*b2*ka - 2*a2*b2**2*ka) + 11*df(x1,t)**6*x1**2*x2**9*a1**9*vm*(800*a1**3*ka - 1960*a1**2*a2*ka - 2200*a1**2*
b1*ka - 2520*a1**2*b2*ka + 11830*a1**2*b2*kc - 2355*a1*a2**2*ka - 3360*a1*a2*b1*ka - 2700*a1*a2*b2*ka + 3458*a1*a2*b2*kc
 + 650*a1*b1*b2*ka + 650*a1*b2**2*ka - 2548*a1*b2**2*kc - 141*a2**3*ka - 432*a2**2*b1*ka - 180*a2**2*b2*ka + 273*a2**2*
b2*kc + 468*a2*b1*b2*ka + 468*a2*b2**2*ka - 273*a2*b2**2*kc) + 91*df(x1,t)**6*x1*x2**11*a1**11*(112*a1**2*kc - 331*a1*a2
*kc - 112*a1*b1*ka - 112*a1*b2*ka + 450*a1*b2*kc - 11*a2**2*kc - 22*a2*b1*ka - 22*a2*b2*ka + 66*a2*b2*kc + 15*b1*b2*ka +
 15*b2**2*ka - 48*b2**2*kc) + 11*df(x1,t)**6*x1*x2**10*a1**10*vm*( - 228*a1**2*ka + 714*a1*a2*ka + 572*a1*b1*ka + 624*a1
*b2*ka - 2548*a1*b2*kc + 305*a2**2*ka + 390*a2*b1*ka + 260*a2*b2*ka - 364*a2*b2*kc - 91*b1*b2*ka - 91*b2**2*ka + 273*b2
**2*kc) + 910*df(x1,t)**6*x2**12*a1**12*( - a1*kc + 3*a2*kc + b1*ka + b2*ka - 4*b2*kc) + 26*df(x1,t)**6*x2**11*a1**11*vm
*(12*a1*ka - 44*a2*ka - 28*b1*ka - 28*b2*ka + 105*b2*kc) + 7*df(x1,t)**5*x1**13*a1**11*( - 4*a1**3*kc - 13*a1**2*a2*kc +
 4*a1**2*b1*ka + 4*a1**2*b2*ka - 30*a1**2*b2*kc + 91*a1*a2**2*kc + 52*a1*a2*b1*ka + 52*a1*a2*b2*ka - 390*a1*a2*b2*kc - 
13*a1*b1*b2*ka - 13*a1*b2**2*ka + 260*a1*b2**2*kc + 143*a2**2*b1*ka + 143*a2**2*b2*ka - 143*a2*b1*b2*ka - 143*a2*b2**2*
ka) + 91*df(x1,t)**5*x1**12*x2*a1**11*(6*a1**3*kc + 2*a1**2*a2*kc - 6*a1**2*b1*ka - 6*a1**2*b2*ka + 40*a1**2*b2*kc - 84*
a1*a2**2*kc - 52*a1*a2*b1*ka - 52*a1*a2*b2*ka + 360*a1*a2*b2*kc + 16*a1*b1*b2*ka + 16*a1*b2**2*ka - 240*a1*b2**2*kc - 
121*a2**2*b1*ka - 121*a2**2*b2*ka + 121*a2*b1*b2*ka + 121*a2*b2**2*ka) + df(x1,t)**5*x1**12*a1**9*vm*(40*a1**3*a2*ka - 
64*a1**3*b2*ka - 182*a1**3*b2*kc - 256*a1**2*a2**2*ka + 66*a1**2*a2*b1*ka + 330*a1**2*a2*b2*ka - 1001*a1**2*a2*b2*kc + 
120*a1**2*b1*b2*ka + 120*a1**2*b2**2*ka + 364*a1**2*b2**2*kc + 460*a1*a2**3*ka + 990*a1*a2**2*b1*ka + 605*a1*a2**2*b2*ka
 - 2002*a1*a2**2*b2*kc - 605*a1*a2*b1*b2*ka - 605*a1*a2*b2**2*ka + 2002*a1*a2*b2**2*kc - 336*a2**4*ka + 924*a2**3*b1*ka 
+ 1485*a2**3*b2*ka - 1089*a2**2*b1*b2*ka - 1089*a2**2*b2**2*ka) + 91*df(x1,t)**5*x1**11*x2**2*a1**11*( - 48*a1**3*kc + 
54*a1**2*a2*kc + 48*a1**2*b1*ka + 48*a1**2*b2*ka - 300*a1**2*b2*kc + 462*a1*a2**2*kc + 308*a1*a2*b1*ka + 308*a1*a2*b2*ka
 - 1980*a1*a2*b2*kc - 110*a1*b1*b2*ka - 110*a1*b2**2*ka + 1320*a1*b2**2*kc + 605*a2**2*b1*ka + 605*a2**2*b2*ka - 605*a2*
b1*b2*ka - 605*a2*b2**2*ka) + df(x1,t)**5*x1**11*x2*a1**9*vm*( - 4*a1**4*ka - 426*a1**3*a2*ka - 6*a1**3*b1*ka + 918*a1**
3*b2*ka + 2912*a1**3*b2*kc + 3250*a1**2*a2**2*ka - 1386*a1**2*a2*b1*ka - 5874*a1**2*a2*b2*ka + 12012*a1**2*a2*b2*kc - 
1496*a1**2*b1*b2*ka - 1496*a1**2*b2**2*ka - 5005*a1**2*b2**2*kc - 5680*a1*a2**3*ka - 11880*a1*a2**2*b1*ka - 6325*a1*a2**
2*b2*ka + 20020*a1*a2**2*b2*kc + 8305*a1*a2*b1*b2*ka + 8305*a1*a2*b2**2*ka - 20020*a1*a2*b2**2*kc + 3024*a2**4*ka - 8316
*a2**3*b1*ka - 13365*a2**3*b2*ka + 9801*a2**2*b1*b2*ka + 9801*a2**2*b2**2*ka) + 5005*df(x1,t)**5*x1**10*x2**3*a1**11*(4*
a1**3*kc - 8*a1**2*a2*kc - 4*a1**2*b1*ka - 4*a1**2*b2*ka + 24*a1**2*b2*kc - 28*a1*a2**2*kc - 20*a1*a2*b1*ka - 20*a1*a2*
b2*ka + 120*a1*a2*b2*kc + 8*a1*b1*b2*ka + 8*a1*b2**2*ka - 80*a1*b2**2*kc - 33*a2**2*b1*ka - 33*a2**2*b2*ka + 33*a2*b1*b2
*ka + 33*a2*b2**2*ka) + df(x1,t)**5*x1**10*x2**2*a1**9*vm*(48*a1**4*ka + 1512*a1**3*a2*ka + 132*a1**3*b1*ka - 5148*a1**3
*b2*ka - 20020*a1**3*b2*kc - 16080*a1**2*a2**2*ka + 11220*a1**2*a2*b1*ka + 39160*a1**2*a2*b2*ka - 65065*a1**2*a2*b2*kc +
 7700*a1**2*b1*b2*ka + 7700*a1**2*b2**2*ka + 30030*a1**2*b2**2*kc + 30420*a1*a2**3*ka + 62370*a1*a2**2*b1*ka + 29700*a1*
a2**2*b2*ka - 90090*a1*a2**2*b2*kc - 47520*a1*a2*b1*b2*ka - 47520*a1*a2*b2**2*ka + 90090*a1*a2*b2**2*kc - 12096*a2**4*ka
 + 33264*a2**3*b1*ka + 53460*a2**3*b2*ka - 39204*a2**2*b1*b2*ka - 39204*a2**2*b2**2*ka) + 5005*df(x1,t)**5*x1**9*x2**4*
a1**11*( - 12*a1**3*kc + 31*a1**2*a2*kc + 12*a1**2*b1*ka + 12*a1**2*b2*ka - 70*a1**2*b2*kc + 63*a1*a2**2*kc + 48*a1*a2*
b1*ka + 48*a1*a2*b2*ka - 270*a1*a2*b2*kc - 21*a1*b1*b2*ka - 21*a1*b2**2*ka + 180*a1*b2**2*kc + 66*a2**2*b1*ka + 66*a2**2
*b2*ka - 66*a2*b1*b2*ka - 66*a2*b2**2*ka) + df(x1,t)**5*x1**9*x2**3*a1**9*vm*( - 200*a1**4*ka - 1350*a1**3*a2*ka - 1100*
a1**3*b1*ka + 15400*a1**3*b2*ka + 80080*a1**3*b2*kc + 40710*a1**2*a2**2*ka - 49500*a1**2*a2*b1*ka - 142560*a1**2*a2*b2*
ka + 210210*a1**2*a2*b2*kc - 21780*a1**2*b1*b2*ka - 21780*a1**2*b2**2*ka - 105105*a1**2*b2**2*kc - 94080*a1*a2**3*ka - 
190080*a1*a2**2*b1*ka - 82500*a1*a2**2*b2*ka + 240240*a1*a2**2*b2*kc + 153780*a1*a2*b1*b2*ka + 153780*a1*a2*b2**2*ka - 
240240*a1*a2*b2**2*kc + 28224*a2**4*ka - 77616*a2**3*b1*ka - 124740*a2**3*b2*ka + 91476*a2**2*b1*b2*ka + 91476*a2**2*b2
**2*ka) + 6006*df(x1,t)**5*x1**8*x2**5*a1**11*(21*a1**3*kc - 63*a1**2*a2*kc - 21*a1**2*b1*ka - 21*a1**2*b2*ka + 120*a1**
2*b2*kc - 84*a1*a2**2*kc - 68*a1*a2*b1*ka - 68*a1*a2*b2*ka + 360*a1*a2*b2*kc + 32*a1*b1*b2*ka + 32*a1*b2**2*ka - 240*a1*
b2**2*kc - 77*a2**2*b1*ka - 77*a2**2*b2*ka + 77*a2*b1*b2*ka + 77*a2*b2**2*ka) + 6*df(x1,t)**5*x1**8*x2**4*a1**9*vm*(50*
a1**4*ka - 900*a1**3*a2*ka + 825*a1**3*b1*ka - 4455*a1**3*b2*ka - 35035*a1**3*b2*kc - 8720*a1**2*a2**2*ka + 22770*a1**2*
a2*b1*ka + 54450*a1**2*a2*b2*ka - 75075*a1**2*a2*b2*kc + 6160*a1**2*b1*b2*ka + 6160*a1**2*b2**2*ka + 40040*a1**2*b2**2*
kc + 31220*a1*a2**3*ka + 62370*a1*a2**2*b1*ka + 25025*a1*a2**2*b2*ka - 70070*a1*a2**2*b2*kc - 52745*a1*a2*b1*b2*ka - 
52745*a1*a2*b2**2*ka + 70070*a1*a2*b2**2*kc - 7056*a2**4*ka + 19404*a2**3*b1*ka + 31185*a2**3*b2*ka - 22869*a2**2*b1*b2*
ka - 22869*a2**2*b2**2*ka) + 6006*df(x1,t)**5*x1**7*x2**6*a1**11*( - 32*a1**3*kc + 106*a1**2*a2*kc + 32*a1**2*b1*ka + 32
*a1**2*b2*ka - 180*a1**2*b2*kc + 98*a1*a2**2*kc + 84*a1*a2*b1*ka + 84*a1*a2*b2*ka - 420*a1*a2*b2*kc - 42*a1*b1*b2*ka - 
42*a1*b2**2*ka + 280*a1*b2**2*kc + 77*a2**2*b1*ka + 77*a2**2*b2*ka - 77*a2*b1*b2*ka - 77*a2*b2**2*ka) + 6*df(x1,t)**5*x1
**7*x2**5*a1**9*vm*(60*a1**4*ka + 3210*a1**3*a2*ka - 2310*a1**3*b1*ka + 4158*a1**3*b2*ka + 64064*a1**3*b2*kc + 2142*a1**
2*a2**2*ka - 42042*a1**2*a2*b1*ka - 83930*a1**2*a2*b2*ka + 112112*a1**2*a2*b2*kc - 6160*a1**2*b1*b2*ka - 6160*a1**2*b2**
2*ka - 63063*a1**2*b2**2*kc - 42000*a1*a2**3*ka - 83160*a1*a2**2*b1*ka - 31185*a1*a2**2*b2*ka + 84084*a1*a2**2*b2*kc + 
72765*a1*a2*b1*b2*ka + 72765*a1*a2*b2**2*ka - 84084*a1*a2*b2**2*kc + 7056*a2**4*ka - 19404*a2**3*b1*ka - 31185*a2**3*b2*
ka + 22869*a2**2*b1*b2*ka + 22869*a2**2*b2**2*ka) + 6006*df(x1,t)**5*x1**6*x2**7*a1**11*(36*a1**3*kc - 128*a1**2*a2*kc -
 36*a1**2*b1*ka - 36*a1**2*b2*ka + 200*a1**2*b2*kc - 84*a1*a2**2*kc - 76*a1*a2*b1*ka - 76*a1*a2*b2*ka + 360*a1*a2*b2*kc 
+ 40*a1*b1*b2*ka + 40*a1*b2**2*ka - 240*a1*b2**2*kc - 55*a2**2*b1*ka - 55*a2**2*b2*ka + 55*a2*b1*b2*ka + 55*a2*b2**2*ka)
 + 42*df(x1,t)**5*x1**6*x2**6*a1**9*vm*( - 56*a1**4*ka - 664*a1**3*a2*ka + 616*a1**3*b1*ka - 88*a1**3*b2*ka - 12012*a1**
3*b2*kc + 1600*a1**2*a2**2*ka + 7656*a1**2*a2*b1*ka + 12804*a1**2*a2*b2*ka - 17017*a1**2*a2*b2*kc + 396*a1**2*b1*b2*ka +
 396*a1**2*b2**2*ka + 10010*a1**2*b2**2*kc + 5540*a1*a2**3*ka + 10890*a1*a2**2*b1*ka + 3850*a1*a2**2*b2*ka - 10010*a1*a2
**2*b2*kc - 9790*a1*a2*b1*b2*ka - 9790*a1*a2*b2**2*ka + 10010*a1*a2*b2**2*kc - 672*a2**4*ka + 1848*a2**3*b1*ka + 2970*a2
**3*b2*ka - 2178*a2**2*b1*b2*ka - 2178*a2**2*b2**2*ka) + 15015*df(x1,t)**5*x1**5*x2**8*a1**11*( - 12*a1**3*kc + 45*a1**2
*a2*kc + 12*a1**2*b1*ka + 12*a1**2*b2*ka - 66*a1**2*b2*kc + 21*a1*a2**2*kc + 20*a1*a2*b1*ka + 20*a1*a2*b2*ka - 90*a1*a2*
b2*kc - 11*a1*b1*b2*ka - 11*a1*b2**2*ka + 60*a1*b2**2*kc + 11*a2**2*b1*ka + 11*a2**2*b2*ka - 11*a2*b1*b2*ka - 11*a2*b2**
2*ka) + 6*df(x1,t)**5*x1**5*x2**7*a1**9*vm*(784*a1**4*ka + 3246*a1**3*a2*ka - 5544*a1**3*b1*ka - 3564*a1**3*b2*ka + 
80080*a1**3*b2*kc - 19870*a1**2*a2**2*ka - 47520*a1**2*a2*b1*ka - 66660*a1**2*a2*b2*ka + 90090*a1**2*a2*b2*kc + 1100*a1
**2*b1*b2*ka + 1100*a1**2*b2**2*ka - 55055*a1**2*b2**2*kc - 24320*a1*a2**3*ka - 47520*a1*a2**2*b1*ka - 15950*a1*a2**2*b2
*ka + 40040*a1*a2**2*b2*kc + 43670*a1*a2*b1*b2*ka + 43670*a1*a2*b2**2*ka - 40040*a1*a2*b2**2*kc + 2016*a2**4*ka - 5544*
a2**3*b1*ka - 8910*a2**3*b2*ka + 6534*a2**2*b1*b2*ka + 6534*a2**2*b2**2*ka) + 5005*df(x1,t)**5*x1**4*x2**9*a1**11*(22*a1
**3*kc - 86*a1**2*a2*kc - 22*a1**2*b1*ka - 22*a1**2*b2*ka + 120*a1**2*b2*kc - 28*a1*a2**2*kc - 28*a1*a2*b1*ka - 28*a1*a2
*b2*ka + 120*a1*a2*b2*kc + 16*a1*b1*b2*ka + 16*a1*b2**2*ka - 80*a1*b2**2*kc - 11*a2**2*b1*ka - 11*a2**2*b2*ka + 11*a2*b1
*b2*ka + 11*a2*b2**2*ka) + 3*df(x1,t)**5*x1**4*x2**8*a1**9*vm*( - 1800*a1**4*ka - 600*a1**3*a2*ka + 9900*a1**3*b1*ka + 
9900*a1**3*b2*ka - 110110*a1**3*b2*kc + 34080*a1**2*a2**2*ka + 57750*a1**2*a2*b1*ka + 67870*a1**2*a2*b2*ka - 95095*a1**2
*a2*b2*kc - 4840*a1**2*b1*b2*ka - 4840*a1**2*b2**2*ka + 60060*a1**2*b2**2*kc + 19860*a1*a2**3*ka + 38610*a1*a2**2*b1*ka 
+ 12375*a1*a2**2*b2*ka - 30030*a1*a2**2*b2*kc - 36135*a1*a2*b1*b2*ka - 36135*a1*a2*b2**2*ka + 30030*a1*a2*b2**2*kc - 
1008*a2**4*ka + 2772*a2**3*b1*ka + 4455*a2**3*b2*ka - 3267*a2**2*b1*b2*ka - 3267*a2**2*b2**2*ka) + 1001*df(x1,t)**5*x1**
3*x2**10*a1**11*( - 48*a1**3*kc + 194*a1**2*a2*kc + 48*a1**2*b1*ka + 48*a1**2*b2*ka - 260*a1**2*b2*kc + 42*a1*a2**2*kc +
 44*a1*a2*b1*ka + 44*a1*a2*b2*ka - 180*a1*a2*b2*kc - 26*a1*b1*b2*ka - 26*a1*b2**2*ka + 120*a1*b2**2*kc + 11*a2**2*b1*ka 
+ 11*a2**2*b2*ka - 11*a2*b1*b2*ka - 11*a2*b2**2*ka) + df(x1,t)**5*x1**3*x2**9*a1**9*vm*(3900*a1**4*ka - 8050*a1**3*a2*ka
 - 18150*a1**3*b1*ka - 20570*a1**3*b2*ka + 160160*a1**3*b2*kc - 50630*a1**2*a2**2*ka - 68970*a1**2*a2*b1*ka - 67650*a1**
2*a2*b2*ka + 100100*a1**2*a2*b2*kc + 9240*a1**2*b1*b2*ka + 9240*a1**2*b2**2*ka - 65065*a1**2*b2**2*kc - 14320*a1*a2**3*
ka - 27720*a1*a2**2*b1*ka - 8525*a1*a2**2*b2*ka + 20020*a1*a2**2*b2*kc + 26345*a1*a2*b1*b2*ka + 26345*a1*a2*b2**2*ka - 
20020*a1*a2*b2**2*kc + 336*a2**4*ka - 924*a2**3*b1*ka - 1485*a2**3*b2*ka + 1089*a2**2*b1*b2*ka + 1089*a2**2*b2**2*ka) + 
91*df(x1,t)**5*x1**2*x2**11*a1**11*(156*a1**3*kc - 648*a1**2*a2*kc - 156*a1**2*b1*ka - 156*a1**2*b2*ka + 840*a1**2*b2*kc
 - 84*a1*a2**2*kc - 92*a1*a2*b1*ka - 92*a1*a2*b2*ka + 360*a1*a2*b2*kc + 56*a1*b1*b2*ka + 56*a1*b2**2*ka - 240*a1*b2**2*
kc - 11*a2**2*b1*ka - 11*a2**2*b2*ka + 11*a2*b1*b2*ka + 11*a2*b2**2*ka) + 11*df(x1,t)**5*x1**2*x2**10*a1**10*vm*( - 160*
a1**3*ka + 600*a1**2*a2*ka + 660*a1**2*b1*ka + 756*a1**2*b2*ka - 4732*a1**2*b2*kc + 1264*a1*a2**2*ka + 1476*a1*a2*b1*ka 
+ 1200*a1*a2*b2*ka - 1911*a1*a2*b2*kc - 260*a1*b1*b2*ka - 260*a1*b2**2*ka + 1274*a1*b2**2*kc + 140*a2**3*ka + 270*a2**2*
b1*ka + 80*a2**2*b2*ka - 182*a2**2*b2*kc - 260*a2*b1*b2*ka - 260*a2*b2**2*ka + 182*a2*b2**2*kc) + 91*df(x1,t)**5*x1*x2**
12*a1**12*( - 28*a1**2*kc + 119*a1*a2*kc + 28*a1*b1*ka + 28*a1*b2*ka - 150*a1*b2*kc + 7*a2**2*kc + 8*a2*b1*ka + 8*a2*b2*
ka - 30*a2*b2*kc - 5*b1*b2*ka - 5*b2**2*ka + 20*b2**2*kc) + df(x1,t)**5*x1*x2**11*a1**11*vm*(456*a1**2*ka - 2286*a1*a2*
ka - 1716*a1*b1*ka - 1872*a1*b2*ka + 10192*a1*b2*kc - 1650*a2**2*ka - 1716*a2*b1*ka - 1144*a2*b2*ka + 2002*a2*b2*kc + 
364*b1*b2*ka + 364*b2**2*ka - 1365*b2**2*kc) + 70*df(x1,t)**5*x2**13*a1**13*(3*a1*kc - 13*a2*kc - 3*b1*ka - 3*b2*ka + 16
*b2*kc) + 26*df(x1,t)**5*x2**12*a1**12*vm*( - 2*a1*ka + 12*a2*ka + 7*b1*ka + 7*b2*ka - 35*b2*kc) + df(x1,t)**4*x1**14*a1
**12*( - 2*a1**3*kc - 49*a1**2*a2*kc + 2*a1**2*b1*ka + 2*a1**2*b2*ka - 30*a1**2*b2*kc + 273*a1*a2**2*kc + 91*a1*a2*b1*ka
 + 91*a1*a2*b2*ka - 910*a1*a2*b2*kc - 14*a1*b1*b2*ka - 14*a1*b2**2*ka + 560*a1*b2**2*kc + 364*a2**2*b1*ka + 364*a2**2*b2
*ka - 364*a2*b1*b2*ka - 364*a2*b2**2*ka) + 7*df(x1,t)**4*x1**13*x2*a1**12*(8*a1**3*kc + 61*a1**2*a2*kc - 8*a1**2*b1*ka -
 8*a1**2*b2*ka + 90*a1**2*b2*kc - 507*a1*a2**2*kc - 182*a1*a2*b1*ka - 182*a1*a2*b2*ka + 1690*a1*a2*b2*kc + 39*a1*b1*b2*
ka + 39*a1*b2**2*ka - 1040*a1*b2**2*kc - 624*a2**2*b1*ka - 624*a2**2*b2*ka + 624*a2*b1*b2*ka + 624*a2*b2**2*ka) + df(x1,
t)**4*x1**13*a1**10*vm*(5*a1**3*a2*ka - 6*a1**3*b2*ka - 28*a1**3*b2*kc - 36*a1**2*a2**2*ka + 6*a1**2*a2*b1*ka - 364*a1**
2*a2*b2*kc + 23*a1**2*b1*b2*ka + 23*a1**2*b2**2*ka + 91*a1**2*b2**2*kc + 46*a1*a2**3*ka + 330*a1*a2**2*b1*ka + 440*a1*a2
**2*b2*ka - 1001*a1*a2**2*b2*kc - 110*a1*a2*b1*b2*ka - 110*a1*a2*b2**2*ka + 1001*a1*a2*b2**2*kc - 60*a2**4*ka + 660*a2**
3*b1*ka + 770*a2**3*b2*ka - 770*a2**2*b1*b2*ka - 770*a2**2*b2**2*ka) + 546*df(x1,t)**4*x1**12*x2**2*a1**12*( - a1**3*kc 
- 2*a1**2*a2*kc + a1**2*b1*ka + a1**2*b2*ka - 10*a1**2*b2*kc + 39*a1*a2**2*kc + 15*a1*a2*b1*ka + 15*a1*a2*b2*ka - 130*a1
*a2*b2*kc - 4*a1*b1*b2*ka - 4*a1*b2**2*ka + 80*a1*b2**2*kc + 44*a2**2*b1*ka + 44*a2**2*b2*ka - 44*a2*b1*b2*ka - 44*a2*b2
**2*ka) + df(x1,t)**4*x1**12*x2*a1**10*vm*( - 84*a1**3*a2*ka + 128*a1**3*b2*ka + 546*a1**3*b2*kc + 822*a1**2*a2**2*ka - 
204*a1**2*a2*b1*ka - 840*a1**2*a2*b2*ka + 4732*a1**2*a2*b2*kc - 360*a1**2*b1*b2*ka - 360*a1**2*b2**2*ka - 1456*a1**2*b2
**2*kc - 1406*a1*a2**3*ka - 4620*a1*a2**2*b1*ka - 4664*a1*a2**2*b2*ka + 11011*a1*a2**2*b2*kc + 2244*a1*a2*b1*b2*ka + 
2244*a1*a2*b2**2*ka - 11011*a1*a2*b2**2*kc + 600*a2**4*ka - 6600*a2**3*b1*ka - 7700*a2**3*b2*ka + 7700*a2**2*b1*b2*ka + 
7700*a2**2*b2**2*ka) + 182*df(x1,t)**4*x1**11*x2**3*a1**12*(16*a1**3*kc - 13*a1**2*a2*kc - 16*a1**2*b1*ka - 16*a1**2*b2*
ka + 150*a1**2*b2*kc - 429*a1*a2**2*kc - 176*a1*a2*b1*ka - 176*a1*a2*b2*ka + 1430*a1*a2*b2*kc + 55*a1*b1*b2*ka + 55*a1*
b2**2*ka - 880*a1*b2**2*kc - 440*a2**2*b1*ka - 440*a2**2*b2*ka + 440*a2*b1*b2*ka + 440*a2*b2**2*ka) + df(x1,t)**4*x1**11
*x2**2*a1**10*vm*(2*a1**4*ka + 450*a1**3*a2*ka + 6*a1**3*b1*ka - 918*a1**3*b2*ka - 4368*a1**3*b2*kc - 5706*a1**2*a2**2*
ka + 2178*a1**2*a2*b1*ka + 8712*a1**2*a2*b2*ka - 28028*a1**2*a2*b2*kc + 2244*a1**2*b1*b2*ka + 2244*a1**2*b2**2*ka + 
10010*a1**2*b2**2*kc + 11530*a1*a2**3*ka + 28050*a1*a2**2*b1*ka + 22440*a1*a2**2*b2*ka - 55055*a1*a2**2*b2*kc - 16390*a1
*a2*b1*b2*ka - 16390*a1*a2*b2**2*ka + 55055*a1*a2*b2**2*kc - 2700*a2**4*ka + 29700*a2**3*b1*ka + 34650*a2**3*b2*ka - 
34650*a2**2*b1*b2*ka - 34650*a2**2*b2**2*ka) + 5005*df(x1,t)**4*x1**10*x2**4*a1**12*( - 2*a1**3*kc + 5*a1**2*a2*kc + 2*
a1**2*b1*ka + 2*a1**2*b2*ka - 18*a1**2*b2*kc + 39*a1*a2**2*kc + 17*a1*a2*b1*ka + 17*a1*a2*b2*ka - 130*a1*a2*b2*kc - 6*a1
*b1*b2*ka - 6*a1*b2**2*ka + 80*a1*b2**2*kc + 36*a2**2*b1*ka + 36*a2**2*b2*ka - 36*a2*b1*b2*ka - 36*a2*b2**2*ka) + df(x1,
t)**4*x1**10*x2**3*a1**10*vm*( - 16*a1**4*ka - 1032*a1**3*a2*ka - 88*a1**3*b1*ka + 3432*a1**3*b2*ka + 20020*a1**3*b2*kc 
+ 19770*a1**2*a2**2*ka - 11880*a1**2*a2*b1*ka - 40920*a1**2*a2*b2*ka + 100100*a1**2*a2*b2*kc - 7700*a1**2*b1*b2*ka - 
7700*a1**2*b2**2*ka - 40040*a1**2*b2**2*kc - 48090*a1*a2**3*ka - 99000*a1*a2**2*b1*ka - 64680*a1*a2**2*b2*ka + 165165*a1
*a2**2*b2*kc + 64680*a1*a2*b1*b2*ka + 64680*a1*a2*b2**2*ka - 165165*a1*a2*b2**2*kc + 7200*a2**4*ka - 79200*a2**3*b1*ka -
 92400*a2**3*b2*ka + 92400*a2**2*b1*b2*ka + 92400*a2**2*b2**2*ka) + 3003*df(x1,t)**4*x1**9*x2**5*a1**12*(8*a1**3*kc - 29
*a1**2*a2*kc - 8*a1**2*b1*ka - 8*a1**2*b2*ka + 70*a1**2*b2*kc - 117*a1*a2**2*kc - 54*a1*a2*b1*ka - 54*a1*a2*b2*ka + 390*
a1*a2*b2*kc + 21*a1*b1*b2*ka + 21*a1*b2**2*ka - 240*a1*b2**2*kc - 96*a2**2*b1*ka - 96*a2**2*b2*ka + 96*a2*b1*b2*ka + 96*
a2*b2**2*ka) + 5*df(x1,t)**4*x1**9*x2**4*a1**10*vm*(10*a1**4*ka + 95*a1**3*a2*ka + 110*a1**3*b1*ka - 1540*a1**3*b2*ka - 
12012*a1**3*b2*kc - 7794*a1**2*a2**2*ka + 7920*a1**2*a2*b1*ka + 22968*a1**2*a2*b2*ka - 48048*a1**2*a2*b2*kc + 3267*a1**2
*b1*b2*ka + 3267*a1**2*b2**2*ka + 21021*a1**2*b2**2*kc + 24636*a1*a2**3*ka + 45540*a1*a2**2*b1*ka + 24816*a1*a2**2*b2*ka
 - 66066*a1*a2**2*b2*kc - 32076*a1*a2*b1*b2*ka - 32076*a1*a2*b2**2*ka + 66066*a1*a2*b2**2*kc - 2520*a2**4*ka + 27720*a2
**3*b1*ka + 32340*a2**3*b2*ka - 32340*a2**2*b1*b2*ka - 32340*a2**2*b2**2*ka) + 6006*df(x1,t)**4*x1**8*x2**6*a1**12*( - 7
*a1**3*kc + 31*a1**2*a2*kc + 7*a1**2*b1*ka + 7*a1**2*b2*ka - 60*a1**2*b2*kc + 78*a1*a2**2*kc + 38*a1*a2*b1*ka + 38*a1*a2
*b2*ka - 260*a1*a2*b2*kc - 16*a1*b1*b2*ka - 16*a1*b2**2*ka + 160*a1*b2**2*kc + 56*a2**2*b1*ka + 56*a2**2*b2*ka - 56*a2*
b1*b2*ka - 56*a2*b2**2*ka) + 6*df(x1,t)**4*x1**8*x2**5*a1**10*vm*( - 10*a1**4*ka + 510*a1**3*a2*ka - 330*a1**3*b1*ka + 
1782*a1**3*b2*ka + 21021*a1**3*b2*kc + 7002*a1**2*a2**2*ka - 14652*a1**2*a2*b1*ka - 35640*a1**2*a2*b2*ka + 68068*a1**2*
a2*b2*kc - 3696*a1**2*b1*b2*ka - 3696*a1**2*b2**2*ka - 32032*a1**2*b2**2*kc - 35042*a1*a2**3*ka - 60060*a1*a2**2*b1*ka -
 27720*a1*a2**2*b2*ka + 77077*a1*a2**2*b2*kc + 44660*a1*a2*b1*b2*ka + 44660*a1*a2*b2**2*ka - 77077*a1*a2*b2**2*kc + 2520
*a2**4*ka - 27720*a2**3*b1*ka - 32340*a2**3*b2*ka + 32340*a2**2*b1*b2*ka + 32340*a2**2*b2**2*ka) + 1716*df(x1,t)**4*x1**
7*x2**7*a1**12*(32*a1**3*kc - 161*a1**2*a2*kc - 32*a1**2*b1*ka - 32*a1**2*b2*ka + 270*a1**2*b2*kc - 273*a1*a2**2*kc - 
140*a1*a2*b1*ka - 140*a1*a2*b2*ka + 910*a1*a2*b2*kc + 63*a1*b1*b2*ka + 63*a1*b2**2*ka - 560*a1*b2**2*kc - 168*a2**2*b1*
ka - 168*a2**2*b2*ka + 168*a2*b1*b2*ka + 168*a2*b2**2*ka) + 6*df(x1,t)**4*x1**7*x2**6*a1**10*vm*( - 10*a1**4*ka - 1382*
a1**3*a2*ka + 770*a1**3*b1*ka - 1386*a1**3*b2*ka - 32032*a1**3*b2*kc - 1974*a1**2*a2**2*ka + 22638*a1**2*a2*b1*ka + 
46200*a1**2*a2*b2*ka - 84084*a1**2*a2*b2*kc + 3080*a1**2*b1*b2*ka + 3080*a1**2*b2**2*ka + 42042*a1**2*b2**2*kc + 41342*
a1*a2**3*ka + 66990*a1*a2**2*b1*ka + 26488*a1*a2**2*b2*ka - 77077*a1*a2**2*b2*kc - 51898*a1*a2*b1*b2*ka - 51898*a1*a2*b2
**2*ka + 77077*a1*a2*b2**2*kc - 2100*a2**4*ka + 23100*a2**3*b1*ka + 26950*a2**3*b2*ka - 26950*a2**2*b1*b2*ka - 26950*a2
**2*b2**2*ka) + 9009*df(x1,t)**4*x1**6*x2**8*a1**12*( - 6*a1**3*kc + 33*a1**2*a2*kc + 6*a1**2*b1*ka + 6*a1**2*b2*ka - 50
*a1**2*b2*kc + 39*a1*a2**2*kc + 21*a1*a2*b1*ka + 21*a1*a2*b2*ka - 130*a1*a2*b2*kc - 10*a1*b1*b2*ka - 10*a1*b2**2*ka + 80
*a1*b2**2*kc + 20*a2**2*b1*ka + 20*a2**2*b2*ka - 20*a2*b1*b2*ka - 20*a2*b2**2*ka) + 6*df(x1,t)**4*x1**6*x2**7*a1**10*vm*
(56*a1**4*ka + 1720*a1**3*a2*ka - 1232*a1**3*b1*ka + 176*a1**3*b2*ka + 36036*a1**3*b2*kc - 5538*a1**2*a2**2*ka - 24816*
a1**2*a2*b1*ka - 42504*a1**2*a2*b2*ka + 76076*a1**2*a2*b2*kc - 1188*a1**2*b1*b2*ka - 1188*a1**2*b2**2*ka - 40040*a1**2*
b2**2*kc - 34030*a1*a2**3*ka - 52800*a1*a2**2*b1*ka - 18040*a1*a2**2*b2*ka + 55055*a1*a2**2*b2*kc + 42240*a1*a2*b1*b2*ka
 + 42240*a1*a2*b2**2*ka - 55055*a1*a2*b2**2*kc + 1200*a2**4*ka - 13200*a2**3*b1*ka - 15400*a2**3*b2*ka + 15400*a2**2*b1*
b2*ka + 15400*a2**2*b2**2*ka) + 5005*df(x1,t)**4*x1**5*x2**9*a1**12*(8*a1**3*kc - 47*a1**2*a2*kc - 8*a1**2*b1*ka - 8*a1
**2*b2*ka + 66*a1**2*b2*kc - 39*a1*a2**2*kc - 22*a1*a2*b1*ka - 22*a1*a2*b2*ka + 130*a1*a2*b2*kc + 11*a1*b1*b2*ka + 11*a1
*b2**2*ka - 80*a1*b2**2*kc - 16*a2**2*b1*ka - 16*a2**2*b2*ka + 16*a2*b1*b2*ka + 16*a2*b2**2*ka) + 3*df(x1,t)**4*x1**5*x2
**8*a1**10*vm*( - 196*a1**4*ka - 2247*a1**3*a2*ka + 2772*a1**3*b1*ka + 1782*a1**3*b2*ka - 60060*a1**3*b2*kc + 18360*a1**
2*a2**2*ka + 38610*a1**2*a2*b1*ka + 55440*a1**2*a2*b2*ka - 100100*a1**2*a2*b2*kc - 825*a1**2*b1*b2*ka - 825*a1**2*b2**2*
ka + 55055*a1**2*b2**2*kc + 38530*a1*a2**3*ka + 57750*a1*a2**2*b1*ka + 17160*a1*a2**2*b2*ka - 55055*a1*a2**2*b2*kc - 
47410*a1*a2*b1*b2*ka - 47410*a1*a2*b2**2*ka + 55055*a1*a2*b2**2*kc - 900*a2**4*ka + 9900*a2**3*b1*ka + 11550*a2**3*b2*ka
 - 11550*a2**2*b1*b2*ka - 11550*a2**2*b2**2*ka) + 2002*df(x1,t)**4*x1**4*x2**10*a1**12*( - 11*a1**3*kc + 68*a1**2*a2*kc 
+ 11*a1**2*b1*ka + 11*a1**2*b2*ka - 90*a1**2*b2*kc + 39*a1*a2**2*kc + 23*a1*a2*b1*ka + 23*a1*a2*b2*ka - 130*a1*a2*b2*kc 
- 12*a1*b1*b2*ka - 12*a1*b2**2*ka + 80*a1*b2**2*kc + 12*a2**2*b1*ka + 12*a2**2*b2*ka - 12*a2*b1*b2*ka - 12*a2*b2**2*ka) 
+ 5*df(x1,t)**4*x1**4*x2**9*a1**10*vm*(120*a1**4*ka + 260*a1**3*a2*ka - 1320*a1**3*b1*ka - 1320*a1**3*b2*ka + 22022*a1**
3*b2*kc - 8586*a1**2*a2**2*ka - 12540*a1**2*a2*b1*ka - 15048*a1**2*a2*b2*ka + 28028*a1**2*a2*b2*kc + 968*a1**2*b1*b2*ka 
+ 968*a1**2*b2**2*ka - 16016*a1**2*b2**2*kc - 8606*a1*a2**3*ka - 12540*a1*a2**2*b1*ka - 3256*a1*a2**2*b2*ka + 11011*a1*
a2**2*b2*kc + 10516*a1*a2*b1*b2*ka + 10516*a1*a2*b2**2*ka - 11011*a1*a2*b2**2*kc + 120*a2**4*ka - 1320*a2**3*b1*ka - 
1540*a2**3*b2*ka + 1540*a2**2*b1*b2*ka + 1540*a2**2*b2**2*ka) + 546*df(x1,t)**4*x1**3*x2**11*a1**12*(16*a1**3*kc - 103*
a1**2*a2*kc - 16*a1**2*b1*ka - 16*a1**2*b2*ka + 130*a1**2*b2*kc - 39*a1*a2**2*kc - 24*a1*a2*b1*ka - 24*a1*a2*b2*ka + 130
*a1*a2*b2*kc + 13*a1*b1*b2*ka + 13*a1*b2**2*ka - 80*a1*b2**2*kc - 8*a2**2*b1*ka - 8*a2**2*b2*ka + 8*a2*b1*b2*ka + 8*a2*
b2**2*ka) + df(x1,t)**4*x1**3*x2**10*a1**10*vm*( - 390*a1**4*ka + 1410*a1**3*a2*ka + 3630*a1**3*b1*ka + 4114*a1**3*b2*ka
 - 48048*a1**3*b2*kc + 19374*a1**2*a2**2*ka + 22506*a1**2*a2*b1*ka + 22440*a1**2*a2*b2*ka - 44044*a1**2*a2*b2*kc - 2772*
a1**2*b1*b2*ka - 2772*a1**2*b2**2*ka + 26026*a1**2*b2**2*kc + 9506*a1*a2**3*ka + 13530*a1*a2**2*b1*ka + 3080*a1*a2**2*b2
*ka - 11011*a1*a2**2*b2*kc - 11550*a1*a2*b1*b2*ka - 11550*a1*a2*b2**2*ka + 11011*a1*a2*b2**2*kc - 60*a2**4*ka + 660*a2**
3*b1*ka + 770*a2**3*b2*ka - 770*a2**2*b1*b2*ka - 770*a2**2*b2**2*ka) + 91*df(x1,t)**4*x1**2*x2**12*a1**12*( - 26*a1**3*
kc + 173*a1**2*a2*kc + 26*a1**2*b1*ka + 26*a1**2*b2*ka - 210*a1**2*b2*kc + 39*a1*a2**2*kc + 25*a1*a2*b1*ka + 25*a1*a2*b2
*ka - 130*a1*a2*b2*kc - 14*a1*b1*b2*ka - 14*a1*b2**2*ka + 80*a1*b2**2*kc + 4*a2**2*b1*ka + 4*a2**2*b2*ka - 4*a2*b1*b2*ka
 - 4*a2*b2**2*ka) + df(x1,t)**4*x1**2*x2**11*a1**11*vm*(160*a1**3*ka - 1224*a1**2*a2*ka - 1320*a1**2*b1*ka - 1512*a1**2*
b2*ka + 14196*a1**2*b2*kc - 4878*a1*a2**2*ka - 4824*a1*a2*b1*ka - 3960*a1*a2*b2*ka + 8372*a1*a2*b2*kc + 780*a1*b1*b2*ka 
+ 780*a1*b2**2*ka - 5096*a1*b2**2*kc - 946*a2**3*ka - 1320*a2**2*b1*ka - 264*a2**2*b2*ka + 1001*a2**2*b2*kc + 1144*a2*b1
*b2*ka + 1144*a2*b2**2*ka - 1001*a2*b2**2*kc) + 7*df(x1,t)**4*x1*x2**13*a1**13*(56*a1**2*kc - 383*a1*a2*kc - 56*a1*b1*ka
 - 56*a1*b2*ka + 450*a1*b2*kc - 39*a2**2*kc - 26*a2*b1*ka - 26*a2*b2*ka + 130*a2*b2*kc + 15*b1*b2*ka + 15*b2**2*ka - 80*
b2**2*kc) + df(x1,t)**4*x1*x2**12*a1**12*vm*( - 38*a1**2*ka + 405*a1*a2*ka + 286*a1*b1*ka + 312*a1*b2*ka - 2548*a1*b2*kc
 + 534*a2**2*ka + 468*a2*b1*ka + 312*a2*b2*ka - 728*a2*b2*kc - 91*b1*b2*ka - 91*b2**2*ka + 455*b2**2*kc) + 30*df(x1,t)**
4*x2**14*a1**14*( - a1*kc + 7*a2*kc + b1*ka + b2*ka - 8*b2*kc) + 2*df(x1,t)**4*x2**13*a1**13*vm*(2*a1*ka - 26*a2*ka - 14
*b1*ka - 14*b2*ka + 105*b2*kc) + df(x1,t)**3*x1**15*a1**13*( - 11*a1**2*a2*kc - 2*a1**2*b2*kc + 77*a1*a2**2*kc + 14*a1*
a2*b1*ka + 14*a1*a2*b2*ka - 210*a1*a2*b2*kc - a1*b1*b2*ka - a1*b2**2*ka + 120*a1*b2**2*kc + 91*a2**2*b1*ka + 91*a2**2*b2
*ka - 91*a2*b1*b2*ka - 91*a2*b2**2*ka) + df(x1,t)**3*x1**14*x2*a1**13*(2*a1**3*kc + 124*a1**2*a2*kc - 2*a1**2*b1*ka - 2*
a1**2*b2*ka + 60*a1**2*b2*kc - 1078*a1*a2**2*kc - 210*a1*a2*b1*ka - 210*a1*a2*b2*ka + 2940*a1*a2*b2*kc + 28*a1*b1*b2*ka 
+ 28*a1*b2**2*ka - 1680*a1*b2**2*kc - 1183*a2**2*b1*ka - 1183*a2**2*b2*ka + 1183*a2*b1*b2*ka + 1183*a2*b2**2*ka) + df(x1
,t)**3*x1**14*a1**11*vm*( - 2*a1**3*b2*kc + 6*a1**2*a2**2*ka - 18*a1**2*a2*b2*ka - 91*a1**2*a2*b2*kc + 2*a1**2*b1*b2*ka 
+ 2*a1**2*b2**2*ka + 14*a1**2*b2**2*kc - 56*a1*a2**3*ka + 66*a1*a2**2*b1*ka + 192*a1*a2**2*b2*ka - 364*a1*a2**2*b2*kc + 
6*a1*a2*b1*b2*ka + 6*a1*a2*b2**2*ka + 364*a1*a2*b2**2*kc + 60*a2**4*ka + 330*a2**3*b1*ka + 264*a2**3*b2*ka - 374*a2**2*
b1*b2*ka - 374*a2**2*b2**2*ka) + 7*df(x1,t)**3*x1**13*x2**2*a1**13*( - 4*a1**3*kc - 83*a1**2*a2*kc + 4*a1**2*b1*ka + 4*
a1**2*b2*ka - 90*a1**2*b2*kc + 1001*a1*a2**2*kc + 208*a1*a2*b1*ka + 208*a1*a2*b2*ka - 2730*a1*a2*b2*kc - 39*a1*b1*b2*ka 
- 39*a1*b2**2*ka + 1560*a1*b2**2*kc + 1014*a2**2*b1*ka + 1014*a2**2*b2*ka - 1014*a2*b1*b2*ka - 1014*a2*b2**2*ka) + df(x1
,t)**3*x1**13*x2*a1**11*vm*( - 5*a1**3*a2*ka + 6*a1**3*b2*ka + 56*a1**3*b2*kc + 53*a1**2*a2**2*ka - 12*a1**2*a2*b1*ka + 
50*a1**2*a2*b2*ka + 1274*a1**2*a2*b2*kc - 46*a1**2*b1*b2*ka - 46*a1**2*b2**2*ka - 273*a1**2*b2**2*kc + 252*a1*a2**3*ka -
 1122*a1*a2**2*b1*ka - 2160*a1*a2**2*b2*ka + 4368*a1*a2**2*b2*kc + 246*a1*a2*b1*b2*ka + 246*a1*a2*b2**2*ka - 4368*a1*a2*
b2**2*kc - 660*a2**4*ka - 3630*a2**3*b1*ka - 2904*a2**3*b2*ka + 4114*a2**2*b1*b2*ka + 4114*a2**2*b2**2*ka) + 182*df(x1,t
)**3*x1**12*x2**3*a1**13*(a1**3*kc + 7*a1**2*a2*kc - a1**2*b1*ka - a1**2*b2*ka + 20*a1**2*b2*kc - 154*a1*a2**2*kc - 34*
a1*a2*b1*ka - 34*a1*a2*b2*ka + 420*a1*a2*b2*kc + 8*a1*b1*b2*ka + 8*a1*b2**2*ka - 240*a1*b2**2*kc - 143*a2**2*b1*ka - 143
*a2**2*b2*ka + 143*a2*b1*b2*ka + 143*a2*b2**2*ka) + 2*df(x1,t)**3*x1**12*x2**2*a1**11*vm*(22*a1**3*a2*ka - 32*a1**3*b2*
ka - 273*a1**3*b2*kc - 438*a1**2*a2**2*ka + 105*a1**2*a2*b1*ka + 345*a1**2*a2*b2*ka - 4095*a1**2*a2*b2*kc + 180*a1**2*b1
*b2*ka + 180*a1**2*b2**2*ka + 1092*a1**2*b2**2*kc + 462*a1*a2**3*ka + 3993*a1*a2**2*b1*ka + 5544*a1*a2**2*b2*ka - 12012*
a1*a2**2*b2*kc - 1551*a1*a2*b1*b2*ka - 1551*a1*a2*b2**2*ka + 12012*a1*a2*b2**2*kc + 1650*a2**4*ka + 9075*a2**3*b1*ka + 
7260*a2**3*b2*ka - 10285*a2**2*b1*b2*ka - 10285*a2**2*b2**2*ka) + 91*df(x1,t)**3*x1**11*x2**4*a1**13*( - 8*a1**3*kc - a1
**2*a2*kc + 8*a1**2*b1*ka + 8*a1**2*b2*ka - 150*a1**2*b2*kc + 847*a1*a2**2*kc + 198*a1*a2*b1*ka + 198*a1*a2*b2*ka - 2310
*a1*a2*b2*kc - 55*a1*b1*b2*ka - 55*a1*b2**2*ka + 1320*a1*b2**2*kc + 715*a2**2*b1*ka + 715*a2**2*b2*ka - 715*a2*b1*b2*ka 
- 715*a2*b2**2*ka) + 2*df(x1,t)**3*x1**11*x2**3*a1**11*vm*( - 79*a1**3*a2*ka - a1**3*b1*ka + 153*a1**3*b2*ka + 1456*a1**
3*b2*kc + 2211*a1**2*a2**2*ka - 759*a1**2*a2*b1*ka - 2871*a1**2*a2*b2*ka + 16016*a1**2*a2*b2*kc - 748*a1**2*b1*b2*ka - 
748*a1**2*b2**2*ka - 5005*a1**2*b2**2*kc - 5390*a1*a2**3*ka - 16335*a1*a2**2*b1*ka - 17160*a1*a2**2*b2*ka + 40040*a1*a2
**2*b2*kc + 8085*a1*a2*b1*b2*ka + 8085*a1*a2*b2**2*ka - 40040*a1*a2*b2**2*kc - 4950*a2**4*ka - 27225*a2**3*b1*ka - 21780
*a2**3*b2*ka + 30855*a2**2*b1*b2*ka + 30855*a2**2*b2**2*ka) + 1001*df(x1,t)**3*x1**10*x2**5*a1**13*(2*a1**3*kc - 8*a1**2
*a2*kc - 2*a1**2*b1*ka - 2*a1**2*b2*ka + 36*a1**2*b2*kc - 154*a1*a2**2*kc - 38*a1*a2*b1*ka - 38*a1*a2*b2*ka + 420*a1*a2*
b2*kc + 12*a1*b1*b2*ka + 12*a1*b2**2*ka - 240*a1*b2**2*kc - 117*a2**2*b1*ka - 117*a2**2*b2*ka + 117*a2*b1*b2*ka + 117*a2
*b2**2*ka) + 11*df(x1,t)**3*x1**10*x2**4*a1**11*vm*(24*a1**3*a2*ka + 2*a1**3*b1*ka - 78*a1**3*b2*ka - 910*a1**3*b2*kc - 
1090*a1**2*a2**2*ka + 570*a1**2*a2*b1*ka + 1940*a1**2*a2*b2*ka - 7735*a1**2*a2*b2*kc + 350*a1**2*b1*b2*ka + 350*a1**2*b2
**2*ka + 2730*a1**2*b2**2*kc + 3780*a1*a2**3*ka + 7920*a1*a2**2*b1*ka + 6480*a1*a2**2*b2*ka - 16380*a1*a2**2*b2*kc - 
4500*a1*a2*b1*b2*ka - 4500*a1*a2*b2**2*ka + 16380*a1*a2*b2**2*kc + 1800*a2**4*ka + 9900*a2**3*b1*ka + 7920*a2**3*b2*ka -
 11220*a2**2*b1*b2*ka - 11220*a2**2*b2**2*ka) + 1001*df(x1,t)**3*x1**9*x2**6*a1**13*( - 4*a1**3*kc + 27*a1**2*a2*kc + 4*
a1**2*b1*ka + 4*a1**2*b2*ka - 70*a1**2*b2*kc + 231*a1*a2**2*kc + 60*a1*a2*b1*ka + 60*a1*a2*b2*ka - 630*a1*a2*b2*kc - 21*
a1*b1*b2*ka - 21*a1*b2**2*ka + 360*a1*b2**2*kc + 156*a2**2*b1*ka + 156*a2**2*b2*ka - 156*a2*b1*b2*ka - 156*a2*b2**2*ka) 
+ 11*df(x1,t)**3*x1**9*x2**5*a1**11*vm*( - 5*a1**3*a2*ka - 10*a1**3*b1*ka + 140*a1**3*b2*ka + 2184*a1**3*b2*kc + 1773*a1
**2*a2**2*ka - 1530*a1**2*a2*b1*ka - 4464*a1**2*a2*b2*ka + 14742*a1**2*a2*b2*kc - 594*a1**2*b1*b2*ka - 594*a1**2*b2**2*
ka - 5733*a1**2*b2**2*kc - 8568*a1*a2**3*ka - 14652*a1*a2**2*b1*ka - 9504*a1*a2**2*b2*ka + 26208*a1*a2**2*b2*kc + 9108*
a1*a2*b1*b2*ka + 9108*a1*a2*b2**2*ka - 26208*a1*a2*b2**2*kc - 2520*a2**4*ka - 13860*a2**3*b1*ka - 11088*a2**3*b2*ka + 
15708*a2**2*b1*b2*ka + 15708*a2**2*b2**2*ka) + 858*df(x1,t)**3*x1**8*x2**7*a1**13*(7*a1**3*kc - 61*a1**2*a2*kc - 7*a1**2
*b1*ka - 7*a1**2*b2*ka + 120*a1**2*b2*kc - 308*a1*a2**2*kc - 84*a1*a2*b1*ka - 84*a1*a2*b2*ka + 840*a1*a2*b2*kc + 32*a1*
b1*b2*ka + 32*a1*b2**2*ka - 480*a1*b2**2*kc - 182*a2**2*b1*ka - 182*a2**2*b2*ka + 182*a2*b1*b2*ka + 182*a2*b2**2*ka) + 
66*df(x1,t)**3*x1**8*x2**6*a1**11*vm*( - 10*a1**3*a2*ka + 5*a1**3*b1*ka - 27*a1**3*b2*ka - 637*a1**3*b2*kc - 276*a1**2*
a2**2*ka + 474*a1**2*a2*b1*ka + 1170*a1**2*a2*b2*ka - 3458*a1**2*a2*b2*kc + 112*a1**2*b1*b2*ka + 112*a1**2*b2**2*ka + 
1456*a1**2*b2**2*kc + 2156*a1*a2**3*ka + 3234*a1*a2**2*b1*ka + 1680*a1*a2**2*b2*ka - 5096*a1*a2**2*b2*kc - 2142*a1*a2*b1
*b2*ka - 2142*a1*a2*b2**2*ka + 5096*a1*a2*b2**2*kc + 420*a2**4*ka + 2310*a2**3*b1*ka + 1848*a2**3*b2*ka - 2618*a2**2*b1*
b2*ka - 2618*a2**2*b2**2*ka) + 429*df(x1,t)**3*x1**7*x2**8*a1**13*( - 16*a1**3*kc + 163*a1**2*a2*kc + 16*a1**2*b1*ka + 
16*a1**2*b2*ka - 270*a1**2*b2*kc + 539*a1*a2**2*kc + 154*a1*a2*b1*ka + 154*a1*a2*b2*ka - 1470*a1*a2*b2*kc - 63*a1*b1*b2*
ka - 63*a1*b2**2*ka + 840*a1*b2**2*kc + 273*a2**2*b1*ka + 273*a2**2*b2*ka - 273*a2*b1*b2*ka - 273*a2*b2**2*ka) + 132*df(
x1,t)**3*x1**7*x2**7*a1**11*vm*(11*a1**3*a2*ka - 5*a1**3*b1*ka + 9*a1**3*b2*ka + 416*a1**3*b2*kc + 41*a1**2*a2**2*ka - 
315*a1**2*a2*b1*ka - 655*a1**2*a2*b2*ka + 1820*a1**2*a2*b2*kc - 40*a1**2*b1*b2*ka - 40*a1**2*b2**2*ka - 819*a1**2*b2**2*
kc - 1134*a1*a2**3*ka - 1551*a1*a2**2*b1*ka - 648*a1*a2**2*b2*ka + 2184*a1*a2**2*b2*kc + 1077*a1*a2*b1*b2*ka + 1077*a1*
a2*b2**2*ka - 2184*a1*a2*b2**2*kc - 150*a2**4*ka - 825*a2**3*b1*ka - 660*a2**3*b2*ka + 935*a2**2*b1*b2*ka + 935*a2**2*b2
**2*ka) + 1001*df(x1,t)**3*x1**6*x2**9*a1**13*(6*a1**3*kc - 68*a1**2*a2*kc - 6*a1**2*b1*ka - 6*a1**2*b2*ka + 100*a1**2*
b2*kc - 154*a1*a2**2*kc - 46*a1*a2*b1*ka - 46*a1*a2*b2*ka + 420*a1*a2*b2*kc + 20*a1*b1*b2*ka + 20*a1*b2**2*ka - 240*a1*
b2**2*kc - 65*a2**2*b1*ka - 65*a2**2*b2*ka + 65*a2*b1*b2*ka + 65*a2*b2**2*ka) + 33*df(x1,t)**3*x1**6*x2**8*a1**11*vm*( -
 48*a1**3*a2*ka + 28*a1**3*b1*ka - 4*a1**3*b2*ka - 1638*a1**3*b2*kc + 282*a1**2*a2**2*ka + 1212*a1**2*a2*b1*ka + 2118*a1
**2*a2*b2*ka - 5733*a1**2*a2*b2*kc + 54*a1**2*b1*b2*ka + 54*a1**2*b2**2*ka + 2730*a1**2*b2**2*kc + 3360*a1*a2**3*ka + 
4290*a1*a2**2*b1*ka + 1440*a1*a2**2*b2*ka - 5460*a1*a2**2*b2*kc - 3090*a1*a2*b1*b2*ka - 3090*a1*a2*b2**2*ka + 5460*a1*a2
*b2**2*kc + 300*a2**4*ka + 1650*a2**3*b1*ka + 1320*a2**3*b2*ka - 1870*a2**2*b1*b2*ka - 1870*a2**2*b2**2*ka) + 1001*df(x1
,t)**3*x1**5*x2**10*a1**13*( - 4*a1**3*kc + 49*a1**2*a2*kc + 4*a1**2*b1*ka + 4*a1**2*b2*ka - 66*a1**2*b2*kc + 77*a1*a2**
2*kc + 24*a1*a2*b1*ka + 24*a1*a2*b2*ka - 210*a1*a2*b2*kc - 11*a1*b1*b2*ka - 11*a1*b2**2*ka + 120*a1*b2**2*kc + 26*a2**2*
b1*ka + 26*a2**2*b2*ka - 26*a2*b1*b2*ka - 26*a2*b2**2*ka) + 11*df(x1,t)**3*x1**5*x2**9*a1**11*vm*(87*a1**3*a2*ka - 84*a1
**3*b1*ka - 54*a1**3*b2*ka + 3640*a1**3*b2*kc - 1335*a1**2*a2**2*ka - 2520*a1**2*a2*b1*ka - 3690*a1**2*a2*b2*ka + 10010*
a1**2*a2*b2*kc + 50*a1**2*b1*b2*ka + 50*a1**2*b2**2*ka - 5005*a1**2*b2**2*kc - 5180*a1*a2**3*ka - 6270*a1*a2**2*b1*ka - 
1680*a1*a2**2*b2*ka + 7280*a1*a2**2*b2*kc + 4650*a1*a2*b1*b2*ka + 4650*a1*a2*b2**2*ka - 7280*a1*a2*b2**2*kc - 300*a2**4*
ka - 1650*a2**3*b1*ka - 1320*a2**3*b2*ka + 1870*a2**2*b1*b2*ka + 1870*a2**2*b2**2*ka) + 182*df(x1,t)**3*x1**4*x2**11*a1
**13*(11*a1**3*kc - 143*a1**2*a2*kc - 11*a1**2*b1*ka - 11*a1**2*b2*ka + 180*a1**2*b2*kc - 154*a1*a2**2*kc - 50*a1*a2*b1*
ka - 50*a1*a2*b2*ka + 420*a1*a2*b2*kc + 24*a1*b1*b2*ka + 24*a1*b2**2*ka - 240*a1*b2**2*kc - 39*a2**2*b1*ka - 39*a2**2*b2
*ka + 39*a2*b1*b2*ka + 39*a2*b2**2*ka) + 22*df(x1,t)**3*x1**4*x2**10*a1**11*vm*( - 10*a1**3*a2*ka + 30*a1**3*b1*ka + 30*
a1**3*b2*ka - 1001*a1**3*b2*kc + 478*a1**2*a2**2*ka + 615*a1**2*a2*b1*ka + 751*a1**2*a2*b2*ka - 2093*a1**2*a2*b2*kc - 44
*a1**2*b1*b2*ka - 44*a1**2*b2**2*ka + 1092*a1**2*b2**2*kc + 882*a1*a2**3*ka + 1023*a1*a2**2*b1*ka + 216*a1*a2**2*b2*ka -
 1092*a1*a2**2*b2*kc - 777*a1*a2*b1*b2*ka - 777*a1*a2*b2**2*ka + 1092*a1*a2*b2**2*kc + 30*a2**4*ka + 165*a2**3*b1*ka + 
132*a2**3*b2*ka - 187*a2**2*b1*b2*ka - 187*a2**2*b2**2*ka) + 91*df(x1,t)**3*x1**3*x2**12*a1**13*( - 8*a1**3*kc + 109*a1
**2*a2*kc + 8*a1**2*b1*ka + 8*a1**2*b2*ka - 130*a1**2*b2*kc + 77*a1*a2**2*kc + 26*a1*a2*b1*ka + 26*a1*a2*b2*ka - 210*a1*
a2*b2*kc - 13*a1*b1*b2*ka - 13*a1*b2**2*ka + 120*a1*b2**2*kc + 13*a2**2*b1*ka + 13*a2**2*b2*ka - 13*a2*b1*b2*ka - 13*a2*
b2**2*ka) + 2*df(x1,t)**3*x1**3*x2**11*a1**11*vm*( - 55*a1**3*a2*ka - 165*a1**3*b1*ka - 187*a1**3*b2*ka + 4368*a1**3*b2*
kc - 2181*a1**2*a2**2*ka - 2211*a1**2*a2*b1*ka - 2235*a1**2*a2*b2*ka + 6552*a1**2*a2*b2*kc + 252*a1**2*b1*b2*ka + 252*a1
**2*b2**2*ka - 3549*a1**2*b2**2*kc - 1974*a1*a2**3*ka - 2211*a1*a2**2*b1*ka - 360*a1*a2**2*b2*ka + 2184*a1*a2**2*b2*kc +
 1713*a1*a2*b1*b2*ka + 1713*a1*a2*b2**2*ka - 2184*a1*a2*b2**2*kc - 30*a2**4*ka - 165*a2**3*b1*ka - 132*a2**3*b2*ka + 187
*a2**2*b1*b2*ka + 187*a2**2*b2**2*ka) + 7*df(x1,t)**3*x1**2*x2**13*a1**13*(26*a1**3*kc - 368*a1**2*a2*kc - 26*a1**2*b1*
ka - 26*a1**2*b2*ka + 420*a1**2*b2*kc - 154*a1*a2**2*kc - 54*a1*a2*b1*ka - 54*a1*a2*b2*ka + 420*a1*a2*b2*kc + 28*a1*b1*
b2*ka + 28*a1*b2**2*ka - 240*a1*b2**2*kc - 13*a2**2*b1*ka - 13*a2**2*b2*ka + 13*a2*b1*b2*ka + 13*a2*b2**2*ka) + df(x1,t)
**3*x1**2*x2**12*a1**12*vm*(104*a1**2*a2*ka + 110*a1**2*b1*ka + 126*a1**2*b2*ka - 2366*a1**2*b2*kc + 1014*a1*a2**2*ka + 
870*a1*a2*b1*ka + 720*a1*a2*b2*ka - 2275*a1*a2*b2*kc - 130*a1*b1*b2*ka - 130*a1*b2**2*ka + 1274*a1*b2**2*kc + 364*a2**3*
ka + 396*a2**2*b1*ka + 48*a2**2*b2*ka - 364*a2**2*b2*kc - 312*a2*b1*b2*ka - 312*a2*b2**2*ka + 364*a2*b2**2*kc) + df(x1,t
)**3*x1*x2**14*a1**14*( - 28*a1**2*kc + 409*a1*a2*kc + 28*a1*b1*ka + 28*a1*b2*ka - 450*a1*b2*kc + 77*a2**2*kc + 28*a2*b1
*ka + 28*a2*b2*ka - 210*a2*b2*kc - 15*b1*b2*ka - 15*b2**2*ka + 120*b2**2*kc) + df(x1,t)**3*x1*x2**13*a1**13*vm*( - 33*a1
*a2*ka - 22*a1*b1*ka - 24*a1*b2*ka + 392*a1*b2*kc - 103*a2**2*ka - 78*a2*b1*ka - 52*a2*b2*ka + 182*a2*b2*kc + 14*b1*b2*
ka + 14*b2**2*ka - 105*b2**2*kc) + 2*df(x1,t)**3*x2**15*a1**15*(a1*kc - 15*a2*kc - b1*ka - b2*ka + 16*b2*kc) + 2*df(x1,t
)**3*x2**14*a1**14*vm*(2*a2*ka + b1*ka + b2*ka - 15*b2*kc) + df(x1,t)**2*x1**16*a1**14*( - a1**2*a2*kc + 13*a1*a2**2*kc 
+ a1*a2*b1*ka + a1*a2*b2*ka - 30*a1*a2*b2*kc + 16*a1*b2**2*kc + 14*a2**2*b1*ka + 14*a2**2*b2*ka - 14*a2*b1*b2*ka - 14*a2
*b2**2*ka) + df(x1,t)**2*x1**15*x2*a1**14*(13*a1**2*a2*kc + 2*a1**2*b2*kc - 195*a1*a2**2*kc - 16*a1*a2*b1*ka - 16*a1*a2*
b2*ka + 450*a1*a2*b2*kc + a1*b1*b2*ka + a1*b2**2*ka - 240*a1*b2**2*kc - 196*a2**2*b1*ka - 196*a2**2*b2*ka + 196*a2*b1*b2
*ka + 196*a2*b2**2*ka) + df(x1,t)**2*x1**15*a1**12*vm*(2*a1**2*a2**2*ka - 3*a1**2*a2*b2*ka - 14*a1**2*a2*b2*kc + a1**2*
b2**2*kc - 27*a1*a2**3*ka + 6*a1*a2**2*b1*ka + 47*a1*a2**2*b2*ka - 91*a1*a2**2*b2*kc + 7*a1*a2*b1*b2*ka + 7*a1*a2*b2**2*
ka + 91*a1*a2*b2**2*kc + 50*a2**4*ka + 110*a2**3*b1*ka + 54*a2**3*b2*ka - 120*a2**2*b1*b2*ka - 120*a2**2*b2**2*ka) + df(
x1,t)**2*x1**14*x2**2*a1**14*( - 75*a1**2*a2*kc - 30*a1**2*b2*kc + 1365*a1*a2**2*kc + 119*a1*a2*b1*ka + 119*a1*a2*b2*ka 
- 3150*a1*a2*b2*kc - 14*a1*b1*b2*ka - 14*a1*b2**2*ka + 1680*a1*b2**2*kc + 1274*a2**2*b1*ka + 1274*a2**2*b2*ka - 1274*a2*
b1*b2*ka - 1274*a2*b2**2*ka) + df(x1,t)**2*x1**14*x2*a1**12*vm*(2*a1**3*b2*kc - 11*a1**2*a2**2*ka + 24*a1**2*a2*b2*ka + 
210*a1**2*a2*b2*kc - 2*a1**2*b1*b2*ka - 2*a1**2*b2**2*ka - 28*a1**2*b2**2*kc + 243*a1*a2**3*ka - 144*a1*a2**2*b1*ka - 
568*a1*a2**2*b2*ka + 1183*a1*a2**2*b2*kc - 32*a1*a2*b1*b2*ka - 32*a1*a2*b2**2*ka - 1183*a1*a2*b2**2*kc - 600*a2**4*ka - 
1320*a2**3*b1*ka - 648*a2**3*b2*ka + 1440*a2**2*b1*b2*ka + 1440*a2**2*b2**2*ka) + 7*df(x1,t)**2*x1**13*x2**3*a1**14*(35*
a1**2*a2*kc + 30*a1**2*b2*kc - 845*a1*a2**2*kc - 78*a1*a2*b1*ka - 78*a1*a2*b2*ka + 1950*a1*a2*b2*kc + 13*a1*b1*b2*ka + 
13*a1*b2**2*ka - 1040*a1*b2**2*kc - 728*a2**2*b1*ka - 728*a2**2*b2*ka + 728*a2*b1*b2*ka + 728*a2*b2**2*ka) + df(x1,t)**2
*x1**13*x2**2*a1**12*vm*( - 28*a1**3*b2*kc - 15*a1**2*a2**2*ka + 6*a1**2*a2*b1*ka - 50*a1**2*a2*b2*ka - 1456*a1**2*a2*b2
*kc + 23*a1**2*b1*b2*ka + 23*a1**2*b2**2*ka + 273*a1**2*b2**2*kc - 810*a1*a2**3*ka + 1260*a1*a2**2*b1*ka + 3150*a1*a2**2
*b2*ka - 7098*a1*a2**2*b2*kc - 162*a1*a2*b1*b2*ka - 162*a1*a2*b2**2*ka + 7098*a1*a2*b2**2*kc + 3300*a2**4*ka + 7260*a2**
3*b1*ka + 3564*a2**3*b2*ka - 7920*a2**2*b1*b2*ka - 7920*a2**2*b2**2*ka) + 91*df(x1,t)**2*x1**12*x2**4*a1**14*( - 5*a1**2
*a2*kc - 10*a1**2*b2*kc + 195*a1*a2**2*kc + 19*a1*a2*b1*ka + 19*a1*a2*b2*ka - 450*a1*a2*b2*kc - 4*a1*b1*b2*ka - 4*a1*b2
**2*ka + 240*a1*b2**2*kc + 154*a2**2*b1*ka + 154*a2**2*b2*ka - 154*a2*b1*b2*ka - 154*a2*b2**2*ka) + 2*df(x1,t)**2*x1**12
*x2**3*a1**12*vm*(91*a1**3*b2*kc + 155*a1**2*a2**2*ka - 36*a1**2*a2*b1*ka - 90*a1**2*a2*b2*ka + 3094*a1**2*a2*b2*kc - 60
*a1**2*b1*b2*ka - 60*a1**2*b2**2*ka - 728*a1**2*b2**2*kc + 297*a1*a2**3*ka - 3036*a1*a2**2*b1*ka - 5302*a1*a2**2*b2*ka +
 13013*a1*a2**2*b2*kc + 946*a1*a2*b1*b2*ka + 946*a1*a2*b2**2*ka - 13013*a1*a2*b2**2*kc - 5500*a2**4*ka - 12100*a2**3*b1*
ka - 5940*a2**3*b2*ka + 13200*a2**2*b1*b2*ka + 13200*a2**2*b2**2*ka) + 91*df(x1,t)**2*x1**11*x2**5*a1**14*(3*a1**2*a2*kc
 + 30*a1**2*b2*kc - 429*a1*a2**2*kc - 44*a1*a2*b1*ka - 44*a1*a2*b2*ka + 990*a1*a2*b2*kc + 11*a1*b1*b2*ka + 11*a1*b2**2*
ka - 528*a1*b2**2*kc - 308*a2**2*b1*ka - 308*a2**2*b2*ka + 308*a2*b1*b2*ka + 308*a2*b2**2*ka) + df(x1,t)**2*x1**11*x2**4
*a1**12*vm*( - 728*a1**3*b2*kc - 1276*a1**2*a2**2*ka + 396*a1**2*a2*b1*ka + 1419*a1**2*a2*b2*ka - 18018*a1**2*a2*b2*kc +
 374*a1**2*b1*b2*ka + 374*a1**2*b2**2*ka + 5005*a1**2*b2**2*kc + 4455*a1*a2**3*ka + 18810*a1*a2**2*b1*ka + 24145*a1*a2**
2*b2*ka - 65065*a1*a2**2*b2*kc - 7975*a1*a2*b1*b2*ka - 7975*a1*a2*b2**2*ka + 65065*a1*a2*b2**2*kc + 24750*a2**4*ka + 
54450*a2**3*b1*ka + 26730*a2**3*b2*ka - 59400*a2**2*b1*b2*ka - 59400*a2**2*b2**2*ka) + 1001*df(x1,t)**2*x1**10*x2**6*a1
**14*(a1**2*a2*kc - 6*a1**2*b2*kc + 65*a1*a2**2*kc + 7*a1*a2*b1*ka + 7*a1*a2*b2*ka - 150*a1*a2*b2*kc - 2*a1*b1*b2*ka - 2
*a1*b2**2*ka + 80*a1*b2**2*kc + 42*a2**2*b1*ka + 42*a2**2*b2*ka - 42*a2*b1*b2*ka - 42*a2*b2**2*ka) + 11*df(x1,t)**2*x1**
10*x2**5*a1**12*vm*(182*a1**3*b2*kc + 261*a1**2*a2**2*ka - 120*a1**2*a2*b1*ka - 404*a1**2*a2*b2*ka + 3458*a1**2*a2*b2*kc
 - 70*a1**2*b1*b2*ka - 70*a1**2*b2**2*ka - 1092*a1**2*b2**2*kc - 1701*a1*a2**3*ka - 3672*a1*a2**2*b1*ka - 3564*a1*a2**2*
b2*ka + 10647*a1*a2**2*b2*kc + 1836*a1*a2*b1*b2*ka + 1836*a1*a2*b2**2*ka - 10647*a1*a2*b2**2*kc - 3600*a2**4*ka - 7920*
a2**3*b1*ka - 3888*a2**3*b2*ka + 8640*a2**2*b1*b2*ka + 8640*a2**2*b2**2*ka) + 143*df(x1,t)**2*x1**9*x2**7*a1**14*( - 25*
a1**2*a2*kc + 70*a1**2*b2*kc - 585*a1*a2**2*kc - 66*a1*a2*b1*ka - 66*a1*a2*b2*ka + 1350*a1*a2*b2*kc + 21*a1*b1*b2*ka + 
21*a1*b2**2*ka - 720*a1*b2**2*kc - 336*a2**2*b1*ka - 336*a2**2*b2*ka + 336*a2*b1*b2*ka + 336*a2*b2**2*ka) + 11*df(x1,t)
**2*x1**9*x2**6*a1**12*vm*( - 364*a1**3*b2*kc - 363*a1**2*a2**2*ka + 270*a1**2*a2*b1*ka + 792*a1**2*a2*b2*ka - 5460*a1**
2*a2*b2*kc + 99*a1**2*b1*b2*ka + 99*a1**2*b2**2*ka + 1911*a1**2*b2**2*kc + 3564*a1*a2**3*ka + 5688*a1*a2**2*b1*ka + 4236
*a1*a2**2*b2*ka - 14196*a1*a2**2*b2*kc - 3156*a1*a2*b1*b2*ka - 3156*a1*a2*b2**2*ka + 14196*a1*a2*b2**2*kc + 4200*a2**4*
ka + 9240*a2**3*b1*ka + 4536*a2**3*b2*ka - 10080*a2**2*b1*b2*ka - 10080*a2**2*b2**2*ka) + 429*df(x1,t)**2*x1**8*x2**8*a1
**14*(15*a1**2*a2*kc - 30*a1**2*b2*kc + 195*a1*a2**2*kc + 23*a1*a2*b1*ka + 23*a1*a2*b2*ka - 450*a1*a2*b2*kc - 8*a1*b1*b2
*ka - 8*a1*b2**2*ka + 240*a1*b2**2*kc + 98*a2**2*b1*ka + 98*a2**2*b2*ka - 98*a2*b1*b2*ka - 98*a2*b2**2*ka) + 66*df(x1,t)
**2*x1**8*x2**7*a1**12*vm*(91*a1**3*b2*kc + 50*a1**2*a2**2*ka - 72*a1**2*a2*b1*ka - 180*a1**2*a2*b2*ka + 1092*a1**2*a2*
b2*kc - 16*a1**2*b1*b2*ka - 16*a1**2*b2**2*ka - 416*a1**2*b2**2*kc - 810*a1*a2**3*ka - 1080*a1*a2**2*b1*ka - 620*a1*a2**
2*b2*ka + 2366*a1*a2**2*b2*kc + 644*a1*a2*b1*b2*ka + 644*a1*a2*b2**2*ka - 2366*a1*a2*b2**2*kc - 600*a2**4*ka - 1320*a2**
3*b1*ka - 648*a2**3*b2*ka + 1440*a2**2*b1*b2*ka + 1440*a2**2*b2**2*ka) + 143*df(x1,t)**2*x1**7*x2**9*a1**14*( - 55*a1**2
*a2*kc + 90*a1**2*b2*kc - 455*a1*a2**2*kc - 56*a1*a2*b1*ka - 56*a1*a2*b2*ka + 1050*a1*a2*b2*kc + 21*a1*b1*b2*ka + 21*a1*
b2**2*ka - 560*a1*b2**2*kc - 196*a2**2*b1*ka - 196*a2**2*b2*ka + 196*a2*b1*b2*ka + 196*a2*b2**2*ka) + 33*df(x1,t)**2*x1
**7*x2**8*a1**12*vm*( - 208*a1**3*b2*kc - 30*a1**2*a2**2*ka + 168*a1**2*a2*b1*ka + 355*a1**2*a2*b2*ka - 2002*a1**2*a2*b2
*kc + 20*a1**2*b1*b2*ka + 20*a1**2*b2**2*ka + 819*a1**2*b2**2*kc + 1539*a1*a2**3*ka + 1818*a1*a2**2*b1*ka + 801*a1*a2**2
*b2*ka - 3549*a1*a2**2*b2*kc - 1143*a1*a2*b1*b2*ka - 1143*a1*a2*b2**2*ka + 3549*a1*a2*b2**2*kc + 750*a2**4*ka + 1650*a2
**3*b1*ka + 810*a2**3*b2*ka - 1800*a2**2*b1*b2*ka - 1800*a2**2*b2**2*ka) + 1001*df(x1,t)**2*x1**6*x2**10*a1**14*(7*a1**2
*a2*kc - 10*a1**2*b2*kc + 39*a1*a2**2*kc + 5*a1*a2*b1*ka + 5*a1*a2*b2*ka - 90*a1*a2*b2*kc - 2*a1*b1*b2*ka - 2*a1*b2**2*
ka + 48*a1*b2**2*kc + 14*a2**2*b1*ka + 14*a2**2*b2*ka - 14*a2*b1*b2*ka - 14*a2*b2**2*ka) + 11*df(x1,t)**2*x1**6*x2**9*a1
**12*vm*(546*a1**3*b2*kc - 103*a1**2*a2**2*ka - 432*a1**2*a2*b1*ka - 768*a1**2*a2*b2*ka + 4186*a1**2*a2*b2*kc - 18*a1**2
*b1*b2*ka - 18*a1**2*b2**2*ka - 1820*a1**2*b2**2*kc - 3105*a1*a2**3*ka - 3360*a1*a2**2*b1*ka - 1120*a1*a2**2*b2*ka + 
5915*a1*a2**2*b2*kc + 2200*a1*a2*b1*b2*ka + 2200*a1*a2*b2**2*ka - 5915*a1*a2*b2**2*kc - 1000*a2**4*ka - 2200*a2**3*b1*ka
 - 1080*a2**3*b2*ka + 2400*a2**2*b1*b2*ka + 2400*a2**2*b2**2*ka) + 91*df(x1,t)**2*x1**5*x2**11*a1**14*( - 51*a1**2*a2*kc
 + 66*a1**2*b2*kc - 195*a1*a2**2*kc - 26*a1*a2*b1*ka - 26*a1*a2*b2*ka + 450*a1*a2*b2*kc + 11*a1*b1*b2*ka + 11*a1*b2**2*
ka - 240*a1*b2**2*kc - 56*a2**2*b1*ka - 56*a2**2*b2*ka + 56*a2*b1*b2*ka + 56*a2*b2**2*ka) + 11*df(x1,t)**2*x1**5*x2**10*
a1**12*vm*( - 364*a1**3*b2*kc + 157*a1**2*a2**2*ka + 270*a1**2*a2*b1*ka + 402*a1**2*a2*b2*ka - 2184*a1**2*a2*b2*kc - 5*
a1**2*b1*b2*ka - 5*a1**2*b2**2*ka + 1001*a1**2*b2**2*kc + 1458*a1*a2**3*ka + 1476*a1*a2**2*b1*ka + 362*a1*a2**2*b2*ka - 
2366*a1*a2**2*b2*kc - 998*a1*a2*b1*b2*ka - 998*a1*a2*b2**2*ka + 2366*a1*a2*b2**2*kc + 300*a2**4*ka + 660*a2**3*b1*ka + 
324*a2**3*b2*ka - 720*a2**2*b1*b2*ka - 720*a2**2*b2**2*ka) + 91*df(x1,t)**2*x1**4*x2**12*a1**14*(25*a1**2*a2*kc - 30*a1
**2*b2*kc + 65*a1*a2**2*kc + 9*a1*a2*b1*ka + 9*a1*a2*b2*ka - 150*a1*a2*b2*kc - 4*a1*b1*b2*ka - 4*a1*b2**2*ka + 80*a1*b2
**2*kc + 14*a2**2*b1*ka + 14*a2**2*b2*ka - 14*a2*b1*b2*ka - 14*a2*b2**2*ka) + 2*df(x1,t)**2*x1**4*x2**11*a1**12*vm*(1001
*a1**3*b2*kc - 573*a1**2*a2**2*ka - 660*a1**2*a2*b1*ka - 818*a1**2*a2*b2*ka + 4550*a1**2*a2*b2*kc + 44*a1**2*b1*b2*ka + 
44*a1**2*b2**2*ka - 2184*a1**2*b2**2*kc - 2511*a1*a2**3*ka - 2412*a1*a2**2*b1*ka - 414*a1*a2**2*b2*ka + 3549*a1*a2**2*b2
*kc + 1674*a1*a2*b1*b2*ka + 1674*a1*a2*b2**2*ka - 3549*a1*a2*b2**2*kc - 300*a2**4*ka - 660*a2**3*b1*ka - 324*a2**3*b2*ka
 + 720*a2**2*b1*b2*ka + 720*a2**2*b2**2*ka) + 7*df(x1,t)**2*x1**3*x2**13*a1**14*( - 115*a1**2*a2*kc + 130*a1**2*b2*kc - 
195*a1*a2**2*kc - 28*a1*a2*b1*ka - 28*a1*a2*b2*ka + 450*a1*a2*b2*kc + 13*a1*b1*b2*ka + 13*a1*b2**2*ka - 240*a1*b2**2*kc 
- 28*a2**2*b1*ka - 28*a2**2*b2*ka + 28*a2*b1*b2*ka + 28*a2*b2**2*ka) + df(x1,t)**2*x1**3*x2**12*a1**12*vm*( - 728*a1**3*
b2*kc + 440*a1**2*a2**2*ka + 396*a1**2*a2*b1*ka + 405*a1**2*a2*b2*ka - 2366*a1**2*a2*b2*kc - 42*a1**2*b1*b2*ka - 42*a1**
2*b2**2*ka + 1183*a1**2*b2**2*kc + 945*a1*a2**3*ka + 870*a1*a2**2*b1*ka + 95*a1*a2**2*b2*ka - 1183*a1*a2**2*b2*kc - 617*
a1*a2*b1*b2*ka - 617*a1*a2*b2**2*ka + 1183*a1*a2*b2**2*kc + 50*a2**4*ka + 110*a2**3*b1*ka + 54*a2**3*b2*ka - 120*a2**2*
b1*b2*ka - 120*a2**2*b2**2*ka) + df(x1,t)**2*x1**2*x2**14*a1**14*(195*a1**2*a2*kc - 210*a1**2*b2*kc + 195*a1*a2**2*kc + 
29*a1*a2*b1*ka + 29*a1*a2*b2*ka - 450*a1*a2*b2*kc - 14*a1*b1*b2*ka - 14*a1*b2**2*ka + 240*a1*b2**2*kc + 14*a2**2*b1*ka +
 14*a2**2*b2*ka - 14*a2*b1*b2*ka - 14*a2*b2**2*ka) + df(x1,t)**2*x1**2*x2**13*a1**13*vm*(182*a1**2*b2*kc - 95*a1*a2**2*
ka - 72*a1*a2*b1*ka - 60*a1*a2*b2*ka + 378*a1*a2*b2*kc + 10*a1*b1*b2*ka + 10*a1*b2**2*ka - 196*a1*b2**2*kc - 81*a2**3*ka
 - 72*a2**2*b1*ka - 4*a2**2*b2*ka + 91*a2**2*b2*kc + 52*a2*b1*b2*ka + 52*a2*b2**2*ka - 91*a2*b2**2*kc) + df(x1,t)**2*x1*
x2**15*a1**15*( - 29*a1*a2*kc + 30*a1*b2*kc - 13*a2**2*kc - 2*a2*b1*ka - 2*a2*b2*ka + 30*a2*b2*kc + b1*b2*ka + b2**2*ka 
- 16*b2**2*kc) + df(x1,t)**2*x1*x2**14*a1**14*vm*( - 28*a1*b2*kc + 9*a2**2*ka + 6*a2*b1*ka + 4*a2*b2*ka - 28*a2*b2*kc - 
b1*b2*ka - b2**2*ka + 15*b2**2*kc) + 2*df(x1,t)**2*x2**16*a1**16*kc*(a2 - b2) + 2*df(x1,t)**2*x2**15*a1**15*b2*kc*vm + 
df(x1,t)*x1**17*a1**15*(a1*a2**2*kc - 2*a1*a2*b2*kc + a1*b2**2*kc + a2**2*b1*ka + a2**2*b2*ka - a2*b1*b2*ka - a2*b2**2*
ka) + df(x1,t)*x1**16*x2*a1**15*( - 16*a1*a2**2*kc + 32*a1*a2*b2*kc - 16*a1*b2**2*kc - 15*a2**2*b1*ka - 15*a2**2*b2*ka +
 15*a2*b1*b2*ka + 15*a2*b2**2*ka) + df(x1,t)*x1**16*a1**13*a2*vm*( - a1**2*b2*kc - 4*a1*a2**2*ka + 5*a1*a2*b2*ka - 14*a1
*a2*b2*kc + a1*b1*b2*ka + a1*b2**2*ka + 14*a1*b2**2*kc + 16*a2**3*ka + 22*a2**2*b1*ka + 5*a2**2*b2*ka - 23*a2*b1*b2*ka -
 23*a2*b2**2*ka) + 15*df(x1,t)*x1**15*x2**2*a1**15*(8*a1*a2**2*kc - 16*a1*a2*b2*kc + 8*a1*b2**2*kc + 7*a2**2*b1*ka + 7*
a2**2*b2*ka - 7*a2*b1*b2*ka - 7*a2*b2**2*ka) + df(x1,t)*x1**15*x2*a1**13*vm*(16*a1**2*a2*b2*kc - a1**2*b2**2*kc + 44*a1*
a2**3*ka - 6*a1*a2**2*b1*ka - 65*a1*a2**2*b2*ka + 196*a1*a2**2*b2*kc - 9*a1*a2*b1*b2*ka - 9*a1*a2*b2**2*ka - 196*a1*a2*
b2**2*kc - 208*a2**4*ka - 286*a2**3*b1*ka - 65*a2**3*b2*ka + 299*a2**2*b1*b2*ka + 299*a2**2*b2**2*ka) + 35*df(x1,t)*x1**
14*x2**3*a1**15*( - 16*a1*a2**2*kc + 32*a1*a2*b2*kc - 16*a1*b2**2*kc - 13*a2**2*b1*ka - 13*a2**2*b2*ka + 13*a2*b1*b2*ka 
+ 13*a2*b2**2*ka) + df(x1,t)*x1**14*x2**2*a1**13*vm*( - 119*a1**2*a2*b2*kc + 14*a1**2*b2**2*kc - 208*a1*a2**3*ka + 78*a1
*a2**2*b1*ka + 390*a1*a2**2*b2*ka - 1274*a1*a2**2*b2*kc + 26*a1*a2*b1*b2*ka + 26*a1*a2*b2**2*ka + 1274*a1*a2*b2**2*kc + 
1248*a2**4*ka + 1716*a2**3*b1*ka + 390*a2**3*b2*ka - 1794*a2**2*b1*b2*ka - 1794*a2**2*b2**2*ka) + 455*df(x1,t)*x1**13*x2
**4*a1**15*(4*a1*a2**2*kc - 8*a1*a2*b2*kc + 4*a1*b2**2*kc + 3*a2**2*b1*ka + 3*a2**2*b2*ka - 3*a2*b1*b2*ka - 3*a2*b2**2*
ka) + 13*df(x1,t)*x1**13*x2**3*a1**13*vm*(42*a1**2*a2*b2*kc - 7*a1**2*b2**2*kc + 40*a1*a2**3*ka - 36*a1*a2**2*b1*ka - 
110*a1*a2**2*b2*ka + 392*a1*a2**2*b2*kc + 2*a1*a2*b1*b2*ka + 2*a1*a2*b2**2*ka - 392*a1*a2*b2**2*kc - 352*a2**4*ka - 484*
a2**3*b1*ka - 110*a2**3*b2*ka + 506*a2**2*b1*b2*ka + 506*a2**2*b2**2*ka) + 273*df(x1,t)*x1**12*x2**5*a1**15*( - 16*a1*a2
**2*kc + 32*a1*a2*b2*kc - 16*a1*b2**2*kc - 11*a2**2*b1*ka - 11*a2**2*b2*ka + 11*a2*b1*b2*ka + 11*a2*b2**2*ka) + 13*df(x1
,t)*x1**12*x2**4*a1**13*vm*( - 133*a1**2*a2*b2*kc + 28*a1**2*b2**2*kc - 44*a1*a2**3*ka + 132*a1*a2**2*b1*ka + 275*a1*a2
**2*b2*ka - 1078*a1*a2**2*b2*kc - 33*a1*a2*b1*b2*ka - 33*a1*a2*b2**2*ka + 1078*a1*a2*b2**2*kc + 880*a2**4*ka + 1210*a2**
3*b1*ka + 275*a2**3*b2*ka - 1265*a2**2*b1*b2*ka - 1265*a2**2*b2**2*ka) + 1001*df(x1,t)*x1**11*x2**6*a1**15*(8*a1*a2**2*
kc - 16*a1*a2*b2*kc + 8*a1*b2**2*kc + 5*a2**2*b1*ka + 5*a2**2*b2*ka - 5*a2*b1*b2*ka - 5*a2*b2**2*ka) + 143*df(x1,t)*x1**
11*x2**5*a1**13*vm*(28*a1**2*a2*b2*kc - 7*a1**2*b2**2*kc - 4*a1*a2**3*ka - 30*a1*a2**2*b1*ka - 45*a1*a2**2*b2*ka + 196*
a1*a2**2*b2*kc + 11*a1*a2*b1*b2*ka + 11*a1*a2*b2**2*ka - 196*a1*a2*b2**2*kc - 144*a2**4*ka - 198*a2**3*b1*ka - 45*a2**3*
b2*ka + 207*a2**2*b1*b2*ka + 207*a2**2*b2**2*ka) + 715*df(x1,t)*x1**10*x2**7*a1**15*( - 16*a1*a2**2*kc + 32*a1*a2*b2*kc 
- 16*a1*b2**2*kc - 9*a2**2*b1*ka - 9*a2**2*b2*ka + 9*a2*b1*b2*ka + 9*a2*b2**2*ka) + 143*df(x1,t)*x1**10*x2**6*a1**13*vm*
( - 49*a1**2*a2*b2*kc + 14*a1**2*b2**2*kc + 24*a1*a2**3*ka + 54*a1*a2**2*b1*ka + 60*a1*a2**2*b2*ka - 294*a1*a2**2*b2*kc 
- 24*a1*a2*b1*b2*ka - 24*a1*a2*b2**2*ka + 294*a1*a2*b2**2*kc + 192*a2**4*ka + 264*a2**3*b1*ka + 60*a2**3*b2*ka - 276*a2
**2*b1*b2*ka - 276*a2**2*b2**2*ka) + 6435*df(x1,t)*x1**9*x2**8*a1**15*(2*a1*a2**2*kc - 4*a1*a2*b2*kc + 2*a1*b2**2*kc + 
a2**2*b1*ka + a2**2*b2*ka - a2*b1*b2*ka - a2*b2**2*ka) + 429*df(x1,t)*x1**9*x2**7*a1**13*vm*(22*a1**2*a2*b2*kc - 7*a1**2
*b2**2*kc - 16*a1*a2**3*ka - 24*a1*a2**2*b1*ka - 20*a1*a2**2*b2*ka + 112*a1*a2**2*b2*kc + 12*a1*a2*b1*b2*ka + 12*a1*a2*
b2**2*ka - 112*a1*a2*b2**2*kc - 64*a2**4*ka - 88*a2**3*b1*ka - 20*a2**3*b2*ka + 92*a2**2*b1*b2*ka + 92*a2**2*b2**2*ka) +
 715*df(x1,t)*x1**8*x2**9*a1**15*( - 16*a1*a2**2*kc + 32*a1*a2*b2*kc - 16*a1*b2**2*kc - 7*a2**2*b1*ka - 7*a2**2*b2*ka + 
7*a2*b1*b2*ka + 7*a2*b2**2*ka) + 429*df(x1,t)*x1**8*x2**8*a1**13*vm*( - 23*a1**2*a2*b2*kc + 8*a1**2*b2**2*kc + 20*a1*a2
**3*ka + 24*a1*a2**2*b1*ka + 15*a1*a2**2*b2*ka - 98*a1*a2**2*b2*kc - 13*a1*a2*b1*b2*ka - 13*a1*a2*b2**2*ka + 98*a1*a2*b2
**2*kc + 48*a2**4*ka + 66*a2**3*b1*ka + 15*a2**3*b2*ka - 69*a2**2*b1*b2*ka - 69*a2**2*b2**2*ka) + 1001*df(x1,t)*x1**7*x2
**10*a1**15*(8*a1*a2**2*kc - 16*a1*a2*b2*kc + 8*a1*b2**2*kc + 3*a2**2*b1*ka + 3*a2**2*b2*ka - 3*a2*b1*b2*ka - 3*a2*b2**2
*ka) + 143*df(x1,t)*x1**7*x2**9*a1**13*vm*(56*a1**2*a2*b2*kc - 21*a1**2*b2**2*kc - 52*a1*a2**3*ka - 54*a1*a2**2*b1*ka - 
25*a1*a2**2*b2*ka + 196*a1*a2**2*b2*kc + 31*a1*a2*b1*b2*ka + 31*a1*a2*b2**2*ka - 196*a1*a2*b2**2*kc - 80*a2**4*ka - 110*
a2**3*b1*ka - 25*a2**3*b2*ka + 115*a2**2*b1*b2*ka + 115*a2**2*b2**2*ka) + 273*df(x1,t)*x1**6*x2**11*a1**15*( - 16*a1*a2
**2*kc + 32*a1*a2*b2*kc - 16*a1*b2**2*kc - 5*a2**2*b1*ka - 5*a2**2*b2*ka + 5*a2*b1*b2*ka + 5*a2*b2**2*ka) + 143*df(x1,t)
*x1**6*x2**10*a1**13*vm*( - 35*a1**2*a2*b2*kc + 14*a1**2*b2**2*kc + 32*a1*a2**3*ka + 30*a1*a2**2*b1*ka + 10*a1*a2**2*b2*
ka - 98*a1*a2**2*b2*kc - 18*a1*a2*b1*b2*ka - 18*a1*a2*b2**2*ka + 98*a1*a2*b2**2*kc + 32*a2**4*ka + 44*a2**3*b1*ka + 10*
a2**3*b2*ka - 46*a2**2*b1*b2*ka - 46*a2**2*b2**2*ka) + 455*df(x1,t)*x1**5*x2**12*a1**15*(4*a1*a2**2*kc - 8*a1*a2*b2*kc +
 4*a1*b2**2*kc + a2**2*b1*ka + a2**2*b2*ka - a2*b1*b2*ka - a2*b2**2*ka) + 13*df(x1,t)*x1**5*x2**11*a1**13*vm*(182*a1**2*
a2*b2*kc - 77*a1**2*b2**2*kc - 152*a1*a2**3*ka - 132*a1*a2**2*b1*ka - 30*a1*a2**2*b2*ka + 392*a1*a2**2*b2*kc + 82*a1*a2*
b1*b2*ka + 82*a1*a2*b2**2*ka - 392*a1*a2*b2**2*kc - 96*a2**4*ka - 132*a2**3*b1*ka - 30*a2**3*b2*ka + 138*a2**2*b1*b2*ka 
+ 138*a2**2*b2**2*ka) + 35*df(x1,t)*x1**4*x2**13*a1**15*( - 16*a1*a2**2*kc + 32*a1*a2*b2*kc - 16*a1*b2**2*kc - 3*a2**2*
b1*ka - 3*a2**2*b2*ka + 3*a2*b1*b2*ka + 3*a2*b2**2*ka) + 13*df(x1,t)*x1**4*x2**12*a1**13*vm*( - 63*a1**2*a2*b2*kc + 28*
a1**2*b2**2*kc + 44*a1*a2**3*ka + 36*a1*a2**2*b1*ka + 5*a1*a2**2*b2*ka - 98*a1*a2**2*b2*kc - 23*a1*a2*b1*b2*ka - 23*a1*
a2*b2**2*ka + 98*a1*a2*b2**2*kc + 16*a2**4*ka + 22*a2**3*b1*ka + 5*a2**3*b2*ka - 23*a2**2*b1*b2*ka - 23*a2**2*b2**2*ka) 
+ 15*df(x1,t)*x1**3*x2**14*a1**15*(8*a1*a2**2*kc - 16*a1*a2*b2*kc + 8*a1*b2**2*kc + a2**2*b1*ka + a2**2*b2*ka - a2*b1*b2
*ka - a2*b2**2*ka) + df(x1,t)*x1**3*x2**13*a1**13*vm*(196*a1**2*a2*b2*kc - 91*a1**2*b2**2*kc - 100*a1*a2**3*ka - 78*a1*
a2**2*b1*ka - 5*a1*a2**2*b2*ka + 196*a1*a2**2*b2*kc + 51*a1*a2*b1*b2*ka + 51*a1*a2*b2**2*ka - 196*a1*a2*b2**2*kc - 16*a2
**4*ka - 22*a2**3*b1*ka - 5*a2**3*b2*ka + 23*a2**2*b1*b2*ka + 23*a2**2*b2**2*ka) + df(x1,t)*x1**2*x2**15*a1**15*( - 16*
a1*a2**2*kc + 32*a1*a2*b2*kc - 16*a1*b2**2*kc - a2**2*b1*ka - a2**2*b2*ka + a2*b1*b2*ka + a2*b2**2*ka) + df(x1,t)*x1**2*
x2**14*a1**14*vm*( - 29*a1*a2*b2*kc + 14*a1*b2**2*kc + 8*a2**3*ka + 6*a2**2*b1*ka - 14*a2**2*b2*kc - 4*a2*b1*b2*ka - 4*
a2*b2**2*ka + 14*a2*b2**2*kc) + df(x1,t)*x1*x2**16*a1**16*kc*(a2**2 - 2*a2*b2 + b2**2) + df(x1,t)*x1*x2**15*a1**15*b2*kc
*vm*(2*a2 - b2) + x1**17*a1**14*a2*vm*( - a1*a2*b2*kc + a1*b2**2*kc + 2*a2**3*ka + 2*a2**2*b1*ka - 2*a2*b1*b2*ka - 2*a2*
b2**2*ka) + x1**16*x2*a1**14*a2*vm*(15*a1*a2*b2*kc - 15*a1*b2**2*kc - 28*a2**3*ka - 28*a2**2*b1*ka + 28*a2*b1*b2*ka + 28
*a2*b2**2*ka) + 7*x1**15*x2**2*a1**14*a2*vm*( - 15*a1*a2*b2*kc + 15*a1*b2**2*kc + 26*a2**3*ka + 26*a2**2*b1*ka - 26*a2*
b1*b2*ka - 26*a2*b2**2*ka) + 91*x1**14*x2**3*a1**14*a2*vm*(5*a1*a2*b2*kc - 5*a1*b2**2*kc - 8*a2**3*ka - 8*a2**2*b1*ka + 
8*a2*b1*b2*ka + 8*a2*b2**2*ka) + 91*x1**13*x2**4*a1**14*a2*vm*( - 15*a1*a2*b2*kc + 15*a1*b2**2*kc + 22*a2**3*ka + 22*a2
**2*b1*ka - 22*a2*b1*b2*ka - 22*a2*b2**2*ka) + 1001*x1**12*x2**5*a1**14*a2*vm*(3*a1*a2*b2*kc - 3*a1*b2**2*kc - 4*a2**3*
ka - 4*a2**2*b1*ka + 4*a2*b1*b2*ka + 4*a2*b2**2*ka) + 1001*x1**11*x2**6*a1**14*a2*vm*( - 5*a1*a2*b2*kc + 5*a1*b2**2*kc +
 6*a2**3*ka + 6*a2**2*b1*ka - 6*a2*b1*b2*ka - 6*a2*b2**2*ka) + 429*x1**10*x2**7*a1**14*a2*vm*(15*a1*a2*b2*kc - 15*a1*b2
**2*kc - 16*a2**3*ka - 16*a2**2*b1*ka + 16*a2*b1*b2*ka + 16*a2*b2**2*ka) + 429*x1**9*x2**8*a1**14*a2*vm*( - 15*a1*a2*b2*
kc + 15*a1*b2**2*kc + 14*a2**3*ka + 14*a2**2*b1*ka - 14*a2*b1*b2*ka - 14*a2*b2**2*ka) + 1001*x1**8*x2**9*a1**14*a2*vm*(5
*a1*a2*b2*kc - 5*a1*b2**2*kc - 4*a2**3*ka - 4*a2**2*b1*ka + 4*a2*b1*b2*ka + 4*a2*b2**2*ka) + 1001*x1**7*x2**10*a1**14*a2
*vm*( - 3*a1*a2*b2*kc + 3*a1*b2**2*kc + 2*a2**3*ka + 2*a2**2*b1*ka - 2*a2*b1*b2*ka - 2*a2*b2**2*ka) + 91*x1**6*x2**11*a1
**14*a2*vm*(15*a1*a2*b2*kc - 15*a1*b2**2*kc - 8*a2**3*ka - 8*a2**2*b1*ka + 8*a2*b1*b2*ka + 8*a2*b2**2*ka) + 91*x1**5*x2
**12*a1**14*a2*vm*( - 5*a1*a2*b2*kc + 5*a1*b2**2*kc + 2*a2**3*ka + 2*a2**2*b1*ka - 2*a2*b1*b2*ka - 2*a2*b2**2*ka) + 7*x1
**4*x2**13*a1**14*a2*vm*(15*a1*a2*b2*kc - 15*a1*b2**2*kc - 4*a2**3*ka - 4*a2**2*b1*ka + 4*a2*b1*b2*ka + 4*a2*b2**2*ka) +
 x1**3*x2**14*a1**14*a2*vm*( - 15*a1*a2*b2*kc + 15*a1*b2**2*kc + 2*a2**3*ka + 2*a2**2*b1*ka - 2*a2*b1*b2*ka - 2*a2*b2**2
*ka) + x1**2*x2**15*a1**15*a2*b2*kc*vm*(a2 - b2)$

aa_(3) := df(x1,t,3)*df(x1,t)**4*x1**3*ka**2*vm + 4*df(x1,t,3)*df(x1,t)**3*x1**4*a1*ka**2*vm - 4*df(x1,t,3)*df(x1,t)**3*
x1**3*x2*a1*ka**2*vm + 6*df(x1,t,3)*df(x1,t)**2*x1**5*a1**2*ka**2*vm - 12*df(x1,t,3)*df(x1,t)**2*x1**4*x2*a1**2*ka**2*vm
 + 6*df(x1,t,3)*df(x1,t)**2*x1**3*x2**2*a1**2*ka**2*vm + 4*df(x1,t,3)*df(x1,t)*x1**6*a1**3*ka**2*vm - 12*df(x1,t,3)*df(
x1,t)*x1**5*x2*a1**3*ka**2*vm + 12*df(x1,t,3)*df(x1,t)*x1**4*x2**2*a1**3*ka**2*vm - 4*df(x1,t,3)*df(x1,t)*x1**3*x2**3*a1
**3*ka**2*vm + df(x1,t,3)*x1**7*a1**4*ka**2*vm - 4*df(x1,t,3)*x1**6*x2*a1**4*ka**2*vm + 6*df(x1,t,3)*x1**5*x2**2*a1**4*
ka**2*vm - 4*df(x1,t,3)*x1**4*x2**3*a1**4*ka**2*vm + df(x1,t,3)*x1**3*x2**4*a1**4*ka**2*vm - 2*df(x1,t,2)**2*df(x1,t)**3
*x1**3*ka**2*vm - 6*df(x1,t,2)**2*df(x1,t)**2*x1**4*a1*ka**2*vm + 6*df(x1,t,2)**2*df(x1,t)**2*x1**3*x2*a1*ka**2*vm - 6*
df(x1,t,2)**2*df(x1,t)*x1**5*a1**2*ka**2*vm + 12*df(x1,t,2)**2*df(x1,t)*x1**4*x2*a1**2*ka**2*vm - 6*df(x1,t,2)**2*df(x1,
t)*x1**3*x2**2*a1**2*ka**2*vm - 2*df(x1,t,2)**2*x1**6*a1**3*ka**2*vm + 6*df(x1,t,2)**2*x1**5*x2*a1**3*ka**2*vm - 6*df(x1
,t,2)**2*x1**4*x2**2*a1**3*ka**2*vm + 2*df(x1,t,2)**2*x1**3*x2**3*a1**3*ka**2*vm - df(x1,t,2)*df(x1,t)**6*x1**2*ka**2 - 
df(x1,t,2)*df(x1,t)**6*x1*x3*kc**2 - 6*df(x1,t,2)*df(x1,t)**5*x1**3*a1*ka**2 + 6*df(x1,t,2)*df(x1,t)**5*x1**2*x2*a1*ka**
2 - 6*df(x1,t,2)*df(x1,t)**5*x1**2*x3*a1*kc**2 + df(x1,t,2)*df(x1,t)**5*x1**2*ka*vm*(ka - kc) + 6*df(x1,t,2)*df(x1,t)**5
*x1*x2*x3*a1*kc**2 - 15*df(x1,t,2)*df(x1,t)**4*x1**4*a1**2*ka**2 + 30*df(x1,t,2)*df(x1,t)**4*x1**3*x2*a1**2*ka**2 - 15*
df(x1,t,2)*df(x1,t)**4*x1**3*x3*a1**2*kc**2 + df(x1,t,2)*df(x1,t)**4*x1**3*ka*vm*( - 5*a1*kc + b1*ka + b2*ka) - 15*df(x1
,t,2)*df(x1,t)**4*x1**2*x2**2*a1**2*ka**2 + 30*df(x1,t,2)*df(x1,t)**4*x1**2*x2*x3*a1**2*kc**2 + df(x1,t,2)*df(x1,t)**4*
x1**2*x2*a1*ka*vm*( - 3*ka + 5*kc) - 15*df(x1,t,2)*df(x1,t)**4*x1*x2**2*x3*a1**2*kc**2 - 20*df(x1,t,2)*df(x1,t)**3*x1**5
*a1**3*ka**2 + 60*df(x1,t,2)*df(x1,t)**3*x1**4*x2*a1**3*ka**2 - 20*df(x1,t,2)*df(x1,t)**3*x1**4*x3*a1**3*kc**2 + 2*df(x1
,t,2)*df(x1,t)**3*x1**4*a1*ka*vm*( - 3*a1*ka - 5*a1*kc + 2*a2*ka + 2*b1*ka + 2*b2*ka) - 60*df(x1,t,2)*df(x1,t)**3*x1**3*
x2**2*a1**3*ka**2 + 60*df(x1,t,2)*df(x1,t)**3*x1**3*x2*x3*a1**3*kc**2 + 4*df(x1,t,2)*df(x1,t)**3*x1**3*x2*a1*ka*vm*(a1*
ka + 5*a1*kc - a2*ka - b1*ka - b2*ka) + 20*df(x1,t,2)*df(x1,t)**3*x1**2*x2**3*a1**3*ka**2 - 60*df(x1,t,2)*df(x1,t)**3*x1
**2*x2**2*x3*a1**3*kc**2 + 2*df(x1,t,2)*df(x1,t)**3*x1**2*x2**2*a1**2*ka*vm*(ka - 5*kc) + 20*df(x1,t,2)*df(x1,t)**3*x1*
x2**3*x3*a1**3*kc**2 - 15*df(x1,t,2)*df(x1,t)**2*x1**6*a1**4*ka**2 + 60*df(x1,t,2)*df(x1,t)**2*x1**5*x2*a1**4*ka**2 - 15
*df(x1,t,2)*df(x1,t)**2*x1**5*x3*a1**4*kc**2 + 2*df(x1,t,2)*df(x1,t)**2*x1**5*a1**2*ka*vm*( - 4*a1*ka - 5*a1*kc + 6*a2*
ka + 3*b1*ka + 3*b2*ka) - 90*df(x1,t,2)*df(x1,t)**2*x1**4*x2**2*a1**4*ka**2 + 60*df(x1,t,2)*df(x1,t)**2*x1**4*x2*x3*a1**
4*kc**2 + 6*df(x1,t,2)*df(x1,t)**2*x1**4*x2*a1**2*ka*vm*(3*a1*ka + 5*a1*kc - 4*a2*ka - 2*b1*ka - 2*b2*ka) + 60*df(x1,t,2
)*df(x1,t)**2*x1**3*x2**3*a1**4*ka**2 - 90*df(x1,t,2)*df(x1,t)**2*x1**3*x2**2*x3*a1**4*kc**2 + 6*df(x1,t,2)*df(x1,t)**2*
x1**3*x2**2*a1**2*ka*vm*( - 2*a1*ka - 5*a1*kc + 2*a2*ka + b1*ka + b2*ka) - 15*df(x1,t,2)*df(x1,t)**2*x1**2*x2**4*a1**4*
ka**2 + 60*df(x1,t,2)*df(x1,t)**2*x1**2*x2**3*x3*a1**4*kc**2 + 2*df(x1,t,2)*df(x1,t)**2*x1**2*x2**3*a1**3*ka*vm*(ka + 5*
kc) - 15*df(x1,t,2)*df(x1,t)**2*x1*x2**4*x3*a1**4*kc**2 - 6*df(x1,t,2)*df(x1,t)*x1**7*a1**5*ka**2 + 30*df(x1,t,2)*df(x1,
t)*x1**6*x2*a1**5*ka**2 - 6*df(x1,t,2)*df(x1,t)*x1**6*x3*a1**5*kc**2 + df(x1,t,2)*df(x1,t)*x1**6*a1**3*ka*vm*( - 3*a1*ka
 - 5*a1*kc + 12*a2*ka + 4*b1*ka + 4*b2*ka) - 60*df(x1,t,2)*df(x1,t)*x1**5*x2**2*a1**5*ka**2 + 30*df(x1,t,2)*df(x1,t)*x1
**5*x2*x3*a1**5*kc**2 + 4*df(x1,t,2)*df(x1,t)*x1**5*x2*a1**3*ka*vm*(3*a1*ka + 5*a1*kc - 9*a2*ka - 3*b1*ka - 3*b2*ka) + 
60*df(x1,t,2)*df(x1,t)*x1**4*x2**3*a1**5*ka**2 - 60*df(x1,t,2)*df(x1,t)*x1**4*x2**2*x3*a1**5*kc**2 + 6*df(x1,t,2)*df(x1,
t)*x1**4*x2**2*a1**3*ka*vm*( - 3*a1*ka - 5*a1*kc + 6*a2*ka + 2*b1*ka + 2*b2*ka) - 30*df(x1,t,2)*df(x1,t)*x1**3*x2**4*a1
**5*ka**2 + 60*df(x1,t,2)*df(x1,t)*x1**3*x2**3*x3*a1**5*kc**2 + 4*df(x1,t,2)*df(x1,t)*x1**3*x2**3*a1**3*ka*vm*(3*a1*ka +
 5*a1*kc - 3*a2*ka - b1*ka - b2*ka) + 6*df(x1,t,2)*df(x1,t)*x1**2*x2**5*a1**5*ka**2 - 30*df(x1,t,2)*df(x1,t)*x1**2*x2**4
*x3*a1**5*kc**2 + df(x1,t,2)*df(x1,t)*x1**2*x2**4*a1**4*ka*vm*( - 3*ka - 5*kc) + 6*df(x1,t,2)*df(x1,t)*x1*x2**5*x3*a1**5
*kc**2 - df(x1,t,2)*x1**8*a1**6*ka**2 + 6*df(x1,t,2)*x1**7*x2*a1**6*ka**2 - df(x1,t,2)*x1**7*x3*a1**6*kc**2 + df(x1,t,2)
*x1**7*a1**4*ka*vm*( - a1*kc + 4*a2*ka + b1*ka + b2*ka) - 15*df(x1,t,2)*x1**6*x2**2*a1**6*ka**2 + 6*df(x1,t,2)*x1**6*x2*
x3*a1**6*kc**2 + df(x1,t,2)*x1**6*x2*a1**4*ka*vm*(a1*ka + 5*a1*kc - 16*a2*ka - 4*b1*ka - 4*b2*ka) + 20*df(x1,t,2)*x1**5*
x2**3*a1**6*ka**2 - 15*df(x1,t,2)*x1**5*x2**2*x3*a1**6*kc**2 + 2*df(x1,t,2)*x1**5*x2**2*a1**4*ka*vm*( - 2*a1*ka - 5*a1*
kc + 12*a2*ka + 3*b1*ka + 3*b2*ka) - 15*df(x1,t,2)*x1**4*x2**4*a1**6*ka**2 + 20*df(x1,t,2)*x1**4*x2**3*x3*a1**6*kc**2 + 
2*df(x1,t,2)*x1**4*x2**3*a1**4*ka*vm*(3*a1*ka + 5*a1*kc - 8*a2*ka - 2*b1*ka - 2*b2*ka) + 6*df(x1,t,2)*x1**3*x2**5*a1**6*
ka**2 - 15*df(x1,t,2)*x1**3*x2**4*x3*a1**6*kc**2 + df(x1,t,2)*x1**3*x2**4*a1**4*ka*vm*( - 4*a1*ka - 5*a1*kc + 4*a2*ka + 
b1*ka + b2*ka) - df(x1,t,2)*x1**2*x2**6*a1**6*ka**2 + 6*df(x1,t,2)*x1**2*x2**5*x3*a1**6*kc**2 + df(x1,t,2)*x1**2*x2**5*
a1**5*ka*vm*(ka + kc) - df(x1,t,2)*x1*x2**6*x3*a1**6*kc**2 + df(x1,t)**8*x1*ka*kc + df(x1,t)**8*x3*kc**2 + df(x1,t)**7*
x1**2*ka*(7*a1*kc - b1*ka - b2*ka) - 7*df(x1,t)**7*x1*x2*a1*ka*kc + df(x1,t)**7*x1*x3*kc**2*(6*a1 - b2) + df(x1,t)**7*x1
*ka*kc*vm - 7*df(x1,t)**7*x2*x3*a1*kc**2 + 3*df(x1,t)**6*x1**3*a1*ka*(7*a1*kc - 2*b1*ka - 2*b2*ka) + 6*df(x1,t)**6*x1**2
*x2*a1*ka*( - 7*a1*kc + b1*ka + b2*ka) + df(x1,t)**6*x1**2*x3*a1*kc**2*(15*a1 + a2 - 7*b2) + df(x1,t)**6*x1**2*ka*vm*(2*
a1*ka + 5*a1*kc - b1*ka - b2*ka) + 21*df(x1,t)**6*x1*x2**2*a1**2*ka*kc + df(x1,t)**6*x1*x2*x3*a1*kc**2*( - 36*a1 - a2 + 
7*b2) - 6*df(x1,t)**6*x1*x2*a1*ka*kc*vm + 21*df(x1,t)**6*x2**2*x3*a1**2*kc**2 + 5*df(x1,t)**5*x1**4*a1**2*ka*(7*a1*kc - 
3*b1*ka - 3*b2*ka) + 15*df(x1,t)**5*x1**3*x2*a1**2*ka*( - 7*a1*kc + 2*b1*ka + 2*b2*ka) + df(x1,t)**5*x1**3*x3*a1**2*kc**
2*(20*a1 + 6*a2 - 21*b2) + df(x1,t)**5*x1**3*a1*ka*vm*(6*a1*ka + 10*a1*kc - 3*a2*ka + a2*kc - 4*b1*ka - 4*b2*ka) + 15*df
(x1,t)**5*x1**2*x2**2*a1**2*ka*(7*a1*kc - b1*ka - b2*ka) + 3*df(x1,t)**5*x1**2*x2*x3*a1**2*kc**2*( - 25*a1 - 4*a2 + 14*
b2) + df(x1,t)**5*x1**2*x2*a1*ka*vm*( - 8*a1*ka - 25*a1*kc + 2*a2*ka - a2*kc + 5*b1*ka + 5*b2*ka) - 35*df(x1,t)**5*x1*x2
**3*a1**3*ka*kc + 3*df(x1,t)**5*x1*x2**2*x3*a1**2*kc**2*(30*a1 + 2*a2 - 7*b2) + 15*df(x1,t)**5*x1*x2**2*a1**2*ka*kc*vm -
 35*df(x1,t)**5*x2**3*x3*a1**3*kc**2 + 5*df(x1,t)**4*x1**5*a1**3*ka*(7*a1*kc - 4*b1*ka - 4*b2*ka) + 20*df(x1,t)**4*x1**4
*x2*a1**3*ka*( - 7*a1*kc + 3*b1*ka + 3*b2*ka) + 5*df(x1,t)**4*x1**4*x3*a1**3*kc**2*(3*a1 + 3*a2 - 7*b2) + df(x1,t)**4*x1
**4*a1*ka*vm*(6*a1**2*ka + 10*a1**2*kc - 8*a1*a2*ka + 5*a1*a2*kc - 6*a1*b1*ka - 6*a1*b2*ka + a2**2*ka - a2*b1*ka - a2*b2
*ka) + 30*df(x1,t)**4*x1**3*x2**2*a1**3*ka*(7*a1*kc - 2*b1*ka - 2*b2*ka) + 5*df(x1,t)**4*x1**3*x2*x3*a1**3*kc**2*( - 16*
a1 - 9*a2 + 21*b2) + df(x1,t)**4*x1**3*x2*a1*ka*vm*( - 18*a1**2*ka - 40*a1**2*kc + 16*a1*a2*ka - 10*a1*a2*kc + 16*a1*b1*
ka + 16*a1*b2*ka - a2**2*ka + a2*b1*ka + a2*b2*ka) + 20*df(x1,t)**4*x1**2*x2**3*a1**3*ka*( - 7*a1*kc + b1*ka + b2*ka) + 
15*df(x1,t)**4*x1**2*x2**2*x3*a1**3*kc**2*(10*a1 + 3*a2 - 7*b2) + df(x1,t)**4*x1**2*x2**2*a1**2*ka*vm*(12*a1*ka + 50*a1*
kc - 8*a2*ka + 5*a2*kc - 10*b1*ka - 10*b2*ka) + 35*df(x1,t)**4*x1*x2**4*a1**4*ka*kc + 5*df(x1,t)**4*x1*x2**3*x3*a1**3*kc
**2*( - 24*a1 - 3*a2 + 7*b2) - 20*df(x1,t)**4*x1*x2**3*a1**3*ka*kc*vm + 35*df(x1,t)**4*x2**4*x3*a1**4*kc**2 + 3*df(x1,t)
**3*x1**6*a1**4*ka*(7*a1*kc - 5*b1*ka - 5*b2*ka) + 15*df(x1,t)**3*x1**5*x2*a1**4*ka*( - 7*a1*kc + 4*b1*ka + 4*b2*ka) + 
df(x1,t)**3*x1**5*x3*a1**4*kc**2*(6*a1 + 20*a2 - 35*b2) + df(x1,t)**3*x1**5*a1**2*ka*vm*(2*a1**2*ka + 5*a1**2*kc - 6*a1*
a2*ka + 10*a1*a2*kc - 4*a1*b1*ka - 4*a1*b2*ka + 2*a2**2*ka - 4*a2*b1*ka - 4*a2*b2*ka) + 30*df(x1,t)**3*x1**4*x2**2*a1**4
*ka*(7*a1*kc - 3*b1*ka - 3*b2*ka) + 5*df(x1,t)**3*x1**4*x2*x3*a1**4*kc**2*( - 9*a1 - 16*a2 + 28*b2) + 2*df(x1,t)**3*x1**
4*x2*a1**2*ka*vm*( - 6*a1**2*ka - 15*a1**2*kc + 12*a1*a2*ka - 15*a1*a2*kc + 9*a1*b1*ka + 9*a1*b2*ka - 2*a2**2*ka + 4*a2*
b1*ka + 4*a2*b2*ka) + 30*df(x1,t)**3*x1**3*x2**3*a1**4*ka*( - 7*a1*kc + 2*b1*ka + 2*b2*ka) + 30*df(x1,t)**3*x1**3*x2**2*
x3*a1**4*kc**2*(4*a1 + 4*a2 - 7*b2) + 2*df(x1,t)**3*x1**3*x2**2*a1**2*ka*vm*(9*a1**2*ka + 30*a1**2*kc - 15*a1*a2*ka + 15
*a1*a2*kc - 12*a1*b1*ka - 12*a1*b2*ka + a2**2*ka - 2*a2*b1*ka - 2*a2*b2*ka) + 15*df(x1,t)**3*x1**2*x2**4*a1**4*ka*(7*a1*
kc - b1*ka - b2*ka) + 10*df(x1,t)**3*x1**2*x2**3*x3*a1**4*kc**2*( - 15*a1 - 8*a2 + 14*b2) + 2*df(x1,t)**3*x1**2*x2**3*a1
**3*ka*vm*( - 4*a1*ka - 25*a1*kc + 6*a2*ka - 5*a2*kc + 5*b1*ka + 5*b2*ka) - 21*df(x1,t)**3*x1*x2**5*a1**5*ka*kc + 5*df(
x1,t)**3*x1*x2**4*x3*a1**4*kc**2*(18*a1 + 4*a2 - 7*b2) + 15*df(x1,t)**3*x1*x2**4*a1**4*ka*kc*vm - 21*df(x1,t)**3*x2**5*
x3*a1**5*kc**2 + df(x1,t)**2*x1**7*a1**5*ka*(7*a1*kc - 6*b1*ka - 6*b2*ka) + 6*df(x1,t)**2*x1**6*x2*a1**5*ka*( - 7*a1*kc 
+ 5*b1*ka + 5*b2*ka) + df(x1,t)**2*x1**6*x3*a1**5*kc**2*(a1 + 15*a2 - 21*b2) + df(x1,t)**2*x1**6*a1**3*ka*vm*(a1**2*kc +
 10*a1*a2*kc - a1*b1*ka - a1*b2*ka - 6*a2*b1*ka - 6*a2*b2*ka) + 15*df(x1,t)**2*x1**5*x2**2*a1**5*ka*(7*a1*kc - 4*b1*ka -
 4*b2*ka) + 3*df(x1,t)**2*x1**5*x2*x3*a1**5*kc**2*( - 4*a1 - 25*a2 + 35*b2) + 2*df(x1,t)**2*x1**5*x2*a1**3*ka*vm*( - a1
**2*ka - 5*a1**2*kc + 4*a1*a2*ka - 20*a1*a2*kc + 4*a1*b1*ka + 4*a1*b2*ka + 9*a2*b1*ka + 9*a2*b2*ka) + 20*df(x1,t)**2*x1
**4*x2**3*a1**5*ka*( - 7*a1*kc + 3*b1*ka + 3*b2*ka) + 15*df(x1,t)**2*x1**4*x2**2*x3*a1**5*kc**2*(3*a1 + 10*a2 - 14*b2) +
 6*df(x1,t)**2*x1**4*x2**2*a1**3*ka*vm*(a1**2*ka + 5*a1**2*kc - 4*a1*a2*ka + 10*a1*a2*kc - 3*a1*b1*ka - 3*a1*b2*ka - 3*
a2*b1*ka - 3*a2*b2*ka) + 15*df(x1,t)**2*x1**3*x2**4*a1**5*ka*(7*a1*kc - 2*b1*ka - 2*b2*ka) + 10*df(x1,t)**2*x1**3*x2**3*
x3*a1**5*kc**2*( - 8*a1 - 15*a2 + 21*b2) + 2*df(x1,t)**2*x1**3*x2**3*a1**3*ka*vm*( - 3*a1**2*ka - 20*a1**2*kc + 12*a1*a2
*ka - 20*a1*a2*kc + 8*a1*b1*ka + 8*a1*b2*ka + 3*a2*b1*ka + 3*a2*b2*ka) + 6*df(x1,t)**2*x1**2*x2**5*a1**5*ka*( - 7*a1*kc 
+ b1*ka + b2*ka) + 15*df(x1,t)**2*x1**2*x2**4*x3*a1**5*kc**2*(5*a1 + 5*a2 - 7*b2) + df(x1,t)**2*x1**2*x2**4*a1**4*ka*vm*
(2*a1*ka + 25*a1*kc - 8*a2*ka + 10*a2*kc - 5*b1*ka - 5*b2*ka) + 7*df(x1,t)**2*x1*x2**6*a1**6*ka*kc + 3*df(x1,t)**2*x1*x2
**5*x3*a1**5*kc**2*( - 12*a1 - 5*a2 + 7*b2) - 6*df(x1,t)**2*x1*x2**5*a1**5*ka*kc*vm + 7*df(x1,t)**2*x2**6*x3*a1**6*kc**2
 + df(x1,t)*x1**8*a1**6*ka*(a1*kc - b1*ka - b2*ka) + df(x1,t)*x1**7*x2*a1**6*ka*( - 7*a1*kc + 6*b1*ka + 6*b2*ka) + df(x1
,t)*x1**7*x3*a1**6*kc**2*(6*a2 - 7*b2) + df(x1,t)*x1**7*a1**4*a2*ka*vm*(a1*ka + 5*a1*kc - 2*a2*ka - 4*b1*ka - 4*b2*ka) +
 3*df(x1,t)*x1**6*x2**2*a1**6*ka*(7*a1*kc - 5*b1*ka - 5*b2*ka) + df(x1,t)*x1**6*x2*x3*a1**6*kc**2*( - a1 - 36*a2 + 42*b2
) + df(x1,t)*x1**6*x2*a1**4*ka*vm*( - a1**2*kc - 2*a1*a2*ka - 25*a1*a2*kc + a1*b1*ka + a1*b2*ka + 8*a2**2*ka + 16*a2*b1*
ka + 16*a2*b2*ka) + 5*df(x1,t)*x1**5*x2**3*a1**6*ka*( - 7*a1*kc + 4*b1*ka + 4*b2*ka) + 3*df(x1,t)*x1**5*x2**2*x3*a1**6*
kc**2*(2*a1 + 30*a2 - 35*b2) + df(x1,t)*x1**5*x2**2*a1**4*ka*vm*(5*a1**2*kc - 2*a1*a2*ka + 50*a1*a2*kc - 4*a1*b1*ka - 4*
a1*b2*ka - 12*a2**2*ka - 24*a2*b1*ka - 24*a2*b2*ka) + 5*df(x1,t)*x1**4*x2**4*a1**6*ka*(7*a1*kc - 3*b1*ka - 3*b2*ka) + 5*
df(x1,t)*x1**4*x2**3*x3*a1**6*kc**2*( - 3*a1 - 24*a2 + 28*b2) + 2*df(x1,t)*x1**4*x2**3*a1**4*ka*vm*( - 5*a1**2*kc + 4*a1
*a2*ka - 25*a1*a2*kc + 3*a1*b1*ka + 3*a1*b2*ka + 4*a2**2*ka + 8*a2*b1*ka + 8*a2*b2*ka) + 3*df(x1,t)*x1**3*x2**5*a1**6*ka
*( - 7*a1*kc + 2*b1*ka + 2*b2*ka) + 5*df(x1,t)*x1**3*x2**4*x3*a1**6*kc**2*(4*a1 + 18*a2 - 21*b2) + df(x1,t)*x1**3*x2**4*
a1**4*ka*vm*(10*a1**2*kc - 7*a1*a2*ka + 25*a1*a2*kc - 4*a1*b1*ka - 4*a1*b2*ka - 2*a2**2*ka - 4*a2*b1*ka - 4*a2*b2*ka) + 
df(x1,t)*x1**2*x2**6*a1**6*ka*(7*a1*kc - b1*ka - b2*ka) + 3*df(x1,t)*x1**2*x2**5*x3*a1**6*kc**2*( - 5*a1 - 12*a2 + 14*b2
) + df(x1,t)*x1**2*x2**5*a1**5*ka*vm*( - 5*a1*kc + 2*a2*ka - 5*a2*kc + b1*ka + b2*ka) - df(x1,t)*x1*x2**7*a1**7*ka*kc + 
df(x1,t)*x1*x2**6*x3*a1**6*kc**2*(6*a1 + 6*a2 - 7*b2) + df(x1,t)*x1*x2**6*a1**6*ka*kc*vm - df(x1,t)*x2**7*x3*a1**7*kc**2
 + x1**8*x3*a1**7*kc**2*(a2 - b2) + x1**8*a1**5*a2*ka*vm*(a1*kc - a2*ka - b1*ka - b2*ka) + 7*x1**7*x2*x3*a1**7*kc**2*( -
 a2 + b2) + x1**7*x2*a1**5*a2*ka*vm*( - 6*a1*kc + 5*a2*ka + 5*b1*ka + 5*b2*ka) + 21*x1**6*x2**2*x3*a1**7*kc**2*(a2 - b2)
 + 5*x1**6*x2**2*a1**5*a2*ka*vm*(3*a1*kc - 2*a2*ka - 2*b1*ka - 2*b2*ka) + 35*x1**5*x2**3*x3*a1**7*kc**2*( - a2 + b2) + 
10*x1**5*x2**3*a1**5*a2*ka*vm*( - 2*a1*kc + a2*ka + b1*ka + b2*ka) + 35*x1**4*x2**4*x3*a1**7*kc**2*(a2 - b2) + 5*x1**4*
x2**4*a1**5*a2*ka*vm*(3*a1*kc - a2*ka - b1*ka - b2*ka) + 21*x1**3*x2**5*x3*a1**7*kc**2*( - a2 + b2) + x1**3*x2**5*a1**5*
a2*ka*vm*( - 6*a1*kc + a2*ka + b1*ka + b2*ka) + 7*x1**2*x2**6*x3*a1**7*kc**2*(a2 - b2) + x1**2*x2**6*a1**6*a2*ka*kc*vm +
 x1*x2**7*x3*a1**7*kc**2*( - a2 + b2)$

aa_(4) :=  - df(x1,t,3)*df(x1,t)**7*x1**2*ka*kc*vm + df(x1,t,3)*df(x1,t)**6*x1**3*ka*vm*( - 7*a1*kc + b1*ka) + 7*df(x1,t
,3)*df(x1,t)**6*x1**2*x2*a1*ka*kc*vm + 3*df(x1,t,3)*df(x1,t)**5*x1**4*a1*ka*vm*( - 7*a1*kc + 2*b1*ka) + 6*df(x1,t,3)*df(
x1,t)**5*x1**3*x2*a1*ka*vm*(7*a1*kc - b1*ka) - 21*df(x1,t,3)*df(x1,t)**5*x1**2*x2**2*a1**2*ka*kc*vm + 5*df(x1,t,3)*df(x1
,t)**4*x1**5*a1**2*ka*vm*( - 7*a1*kc + 3*b1*ka) + 15*df(x1,t,3)*df(x1,t)**4*x1**4*x2*a1**2*ka*vm*(7*a1*kc - 2*b1*ka) + 
15*df(x1,t,3)*df(x1,t)**4*x1**3*x2**2*a1**2*ka*vm*( - 7*a1*kc + b1*ka) + 35*df(x1,t,3)*df(x1,t)**4*x1**2*x2**3*a1**3*ka*
kc*vm + 5*df(x1,t,3)*df(x1,t)**3*x1**6*a1**3*ka*vm*( - 7*a1*kc + 4*b1*ka) + 20*df(x1,t,3)*df(x1,t)**3*x1**5*x2*a1**3*ka*
vm*(7*a1*kc - 3*b1*ka) + 30*df(x1,t,3)*df(x1,t)**3*x1**4*x2**2*a1**3*ka*vm*( - 7*a1*kc + 2*b1*ka) + 20*df(x1,t,3)*df(x1,
t)**3*x1**3*x2**3*a1**3*ka*vm*(7*a1*kc - b1*ka) - 35*df(x1,t,3)*df(x1,t)**3*x1**2*x2**4*a1**4*ka*kc*vm + 3*df(x1,t,3)*df
(x1,t)**2*x1**7*a1**4*ka*vm*( - 7*a1*kc + 5*b1*ka) + 15*df(x1,t,3)*df(x1,t)**2*x1**6*x2*a1**4*ka*vm*(7*a1*kc - 4*b1*ka) 
+ 30*df(x1,t,3)*df(x1,t)**2*x1**5*x2**2*a1**4*ka*vm*( - 7*a1*kc + 3*b1*ka) + 30*df(x1,t,3)*df(x1,t)**2*x1**4*x2**3*a1**4
*ka*vm*(7*a1*kc - 2*b1*ka) + 15*df(x1,t,3)*df(x1,t)**2*x1**3*x2**4*a1**4*ka*vm*( - 7*a1*kc + b1*ka) + 21*df(x1,t,3)*df(
x1,t)**2*x1**2*x2**5*a1**5*ka*kc*vm + df(x1,t,3)*df(x1,t)*x1**8*a1**5*ka*vm*( - 7*a1*kc + 6*b1*ka) + 6*df(x1,t,3)*df(x1,
t)*x1**7*x2*a1**5*ka*vm*(7*a1*kc - 5*b1*ka) + 15*df(x1,t,3)*df(x1,t)*x1**6*x2**2*a1**5*ka*vm*( - 7*a1*kc + 4*b1*ka) + 20
*df(x1,t,3)*df(x1,t)*x1**5*x2**3*a1**5*ka*vm*(7*a1*kc - 3*b1*ka) + 15*df(x1,t,3)*df(x1,t)*x1**4*x2**4*a1**5*ka*vm*( - 7*
a1*kc + 2*b1*ka) + 6*df(x1,t,3)*df(x1,t)*x1**3*x2**5*a1**5*ka*vm*(7*a1*kc - b1*ka) - 7*df(x1,t,3)*df(x1,t)*x1**2*x2**6*
a1**6*ka*kc*vm + df(x1,t,3)*x1**9*a1**6*ka*vm*( - a1*kc + b1*ka) + df(x1,t,3)*x1**8*x2*a1**6*ka*vm*(7*a1*kc - 6*b1*ka) +
 3*df(x1,t,3)*x1**7*x2**2*a1**6*ka*vm*( - 7*a1*kc + 5*b1*ka) + 5*df(x1,t,3)*x1**6*x2**3*a1**6*ka*vm*(7*a1*kc - 4*b1*ka) 
+ 5*df(x1,t,3)*x1**5*x2**4*a1**6*ka*vm*( - 7*a1*kc + 3*b1*ka) + 3*df(x1,t,3)*x1**4*x2**5*a1**6*ka*vm*(7*a1*kc - 2*b1*ka)
 + df(x1,t,3)*x1**3*x2**6*a1**6*ka*vm*( - 7*a1*kc + b1*ka) + df(x1,t,3)*x1**2*x2**7*a1**7*ka*kc*vm + 3*df(x1,t,2)**2*df(
x1,t)**6*x1**2*ka*kc*vm + 2*df(x1,t,2)**2*df(x1,t)**5*x1**3*ka*vm*(9*a1*kc - b1*ka) - 18*df(x1,t,2)**2*df(x1,t)**5*x1**2
*x2*a1*ka*kc*vm + 5*df(x1,t,2)**2*df(x1,t)**4*x1**4*a1*ka*vm*(9*a1*kc - 2*b1*ka) + 10*df(x1,t,2)**2*df(x1,t)**4*x1**3*x2
*a1*ka*vm*( - 9*a1*kc + b1*ka) + 45*df(x1,t,2)**2*df(x1,t)**4*x1**2*x2**2*a1**2*ka*kc*vm + 20*df(x1,t,2)**2*df(x1,t)**3*
x1**5*a1**2*ka*vm*(3*a1*kc - b1*ka) + 20*df(x1,t,2)**2*df(x1,t)**3*x1**4*x2*a1**2*ka*vm*( - 9*a1*kc + 2*b1*ka) + 20*df(
x1,t,2)**2*df(x1,t)**3*x1**3*x2**2*a1**2*ka*vm*(9*a1*kc - b1*ka) - 60*df(x1,t,2)**2*df(x1,t)**3*x1**2*x2**3*a1**3*ka*kc*
vm + 5*df(x1,t,2)**2*df(x1,t)**2*x1**6*a1**3*ka*vm*(9*a1*kc - 4*b1*ka) + 60*df(x1,t,2)**2*df(x1,t)**2*x1**5*x2*a1**3*ka*
vm*( - 3*a1*kc + b1*ka) + 30*df(x1,t,2)**2*df(x1,t)**2*x1**4*x2**2*a1**3*ka*vm*(9*a1*kc - 2*b1*ka) + 20*df(x1,t,2)**2*df
(x1,t)**2*x1**3*x2**3*a1**3*ka*vm*( - 9*a1*kc + b1*ka) + 45*df(x1,t,2)**2*df(x1,t)**2*x1**2*x2**4*a1**4*ka*kc*vm + 2*df(
x1,t,2)**2*df(x1,t)*x1**7*a1**4*ka*vm*(9*a1*kc - 5*b1*ka) + 10*df(x1,t,2)**2*df(x1,t)*x1**6*x2*a1**4*ka*vm*( - 9*a1*kc +
 4*b1*ka) + 60*df(x1,t,2)**2*df(x1,t)*x1**5*x2**2*a1**4*ka*vm*(3*a1*kc - b1*ka) + 20*df(x1,t,2)**2*df(x1,t)*x1**4*x2**3*
a1**4*ka*vm*( - 9*a1*kc + 2*b1*ka) + 10*df(x1,t,2)**2*df(x1,t)*x1**3*x2**4*a1**4*ka*vm*(9*a1*kc - b1*ka) - 18*df(x1,t,2)
**2*df(x1,t)*x1**2*x2**5*a1**5*ka*kc*vm + df(x1,t,2)**2*x1**8*a1**5*ka*vm*(3*a1*kc - 2*b1*ka) + 2*df(x1,t,2)**2*x1**7*x2
*a1**5*ka*vm*( - 9*a1*kc + 5*b1*ka) + 5*df(x1,t,2)**2*x1**6*x2**2*a1**5*ka*vm*(9*a1*kc - 4*b1*ka) + 20*df(x1,t,2)**2*x1
**5*x2**3*a1**5*ka*vm*( - 3*a1*kc + b1*ka) + 5*df(x1,t,2)**2*x1**4*x2**4*a1**5*ka*vm*(9*a1*kc - 2*b1*ka) + 2*df(x1,t,2)
**2*x1**3*x2**5*a1**5*ka*vm*( - 9*a1*kc + b1*ka) + 3*df(x1,t,2)**2*x1**2*x2**6*a1**6*ka*kc*vm + df(x1,t,2)*df(x1,t)**8*
x1**2*ka*(a1*kc - b1*ka) - df(x1,t,2)*df(x1,t)**8*x1*x2*a1*ka*kc - df(x1,t,2)*df(x1,t)**8*x1*x4*b1*kc**2 + df(x1,t,2)*df
(x1,t)**8*x1*kc*vm*( - 3*ka + kc) + 8*df(x1,t,2)*df(x1,t)**7*x1**3*a1*ka*(a1*kc - b1*ka) + 8*df(x1,t,2)*df(x1,t)**7*x1**
2*x2*a1*ka*( - 2*a1*kc + b1*ka) - 8*df(x1,t,2)*df(x1,t)**7*x1**2*x4*a1*b1*kc**2 + df(x1,t,2)*df(x1,t)**7*x1**2*vm*( - 15
*a1*ka*kc + 8*a1*kc**2 + b1*ka**2 - 2*b1*ka*kc) + 8*df(x1,t,2)*df(x1,t)**7*x1*x2**2*a1**2*ka*kc + 8*df(x1,t,2)*df(x1,t)
**7*x1*x2*x4*a1*b1*kc**2 + 4*df(x1,t,2)*df(x1,t)**7*x1*x2*a1*kc*vm*(5*ka - 2*kc) + 28*df(x1,t,2)*df(x1,t)**6*x1**4*a1**2
*ka*(a1*kc - b1*ka) + 28*df(x1,t,2)*df(x1,t)**6*x1**3*x2*a1**2*ka*( - 3*a1*kc + 2*b1*ka) - 28*df(x1,t,2)*df(x1,t)**6*x1
**3*x4*a1**2*b1*kc**2 + df(x1,t,2)*df(x1,t)**6*x1**3*vm*( - 27*a1**2*ka*kc + 28*a1**2*kc**2 - 6*a1*a2*ka*kc + 2*a1*b1*ka
**2 - 14*a1*b1*ka*kc + b1**2*ka**2 + b1*b2*ka**2) + 28*df(x1,t,2)*df(x1,t)**6*x1**2*x2**2*a1**2*ka*(3*a1*kc - b1*ka) + 
56*df(x1,t,2)*df(x1,t)**6*x1**2*x2*x4*a1**2*b1*kc**2 + df(x1,t,2)*df(x1,t)**6*x1**2*x2*a1*vm*(83*a1*ka*kc - 56*a1*kc**2 
+ 6*a2*ka*kc - 5*b1*ka**2 + 14*b1*ka*kc) - 28*df(x1,t,2)*df(x1,t)**6*x1*x2**3*a1**3*ka*kc - 28*df(x1,t,2)*df(x1,t)**6*x1
*x2**2*x4*a1**2*b1*kc**2 + 28*df(x1,t,2)*df(x1,t)**6*x1*x2**2*a1**2*kc*vm*( - 2*ka + kc) + 56*df(x1,t,2)*df(x1,t)**5*x1
**5*a1**3*ka*(a1*kc - b1*ka) + 56*df(x1,t,2)*df(x1,t)**5*x1**4*x2*a1**3*ka*( - 4*a1*kc + 3*b1*ka) - 56*df(x1,t,2)*df(x1,
t)**5*x1**4*x4*a1**3*b1*kc**2 + df(x1,t,2)*df(x1,t)**5*x1**4*a1*vm*( - 15*a1**2*ka*kc + 56*a1**2*kc**2 - 36*a1*a2*ka*kc 
- 5*a1*b1*ka**2 - 42*a1*b1*ka*kc + 4*a2*b1*ka**2 + 6*b1**2*ka**2 + 6*b1*b2*ka**2) + 168*df(x1,t,2)*df(x1,t)**5*x1**3*x2
**2*a1**3*ka*(2*a1*kc - b1*ka) + 168*df(x1,t,2)*df(x1,t)**5*x1**3*x2*x4*a1**3*b1*kc**2 + 2*df(x1,t,2)*df(x1,t)**5*x1**3*
x2*a1*vm*(57*a1**2*ka*kc - 84*a1**2*kc**2 + 36*a1*a2*ka*kc - 2*a1*b1*ka**2 + 42*a1*b1*ka*kc - 2*a2*b1*ka**2 - 3*b1**2*ka
**2 - 3*b1*b2*ka**2) + 56*df(x1,t,2)*df(x1,t)**5*x1**2*x2**3*a1**3*ka*( - 4*a1*kc + b1*ka) - 168*df(x1,t,2)*df(x1,t)**5*
x1**2*x2**2*x4*a1**3*b1*kc**2 + 3*df(x1,t,2)*df(x1,t)**5*x1**2*x2**2*a1**2*vm*( - 61*a1*ka*kc + 56*a1*kc**2 - 12*a2*ka*
kc + 3*b1*ka**2 - 14*b1*ka*kc) + 56*df(x1,t,2)*df(x1,t)**5*x1*x2**4*a1**4*ka*kc + 56*df(x1,t,2)*df(x1,t)**5*x1*x2**3*x4*
a1**3*b1*kc**2 + 28*df(x1,t,2)*df(x1,t)**5*x1*x2**3*a1**3*kc*vm*(3*ka - 2*kc) + 70*df(x1,t,2)*df(x1,t)**4*x1**6*a1**4*ka
*(a1*kc - b1*ka) + 70*df(x1,t,2)*df(x1,t)**4*x1**5*x2*a1**4*ka*( - 5*a1*kc + 4*b1*ka) - 70*df(x1,t,2)*df(x1,t)**4*x1**5*
x4*a1**4*b1*kc**2 + 5*df(x1,t,2)*df(x1,t)**4*x1**5*a1**2*vm*(3*a1**2*ka*kc + 14*a1**2*kc**2 - 18*a1*a2*ka*kc - 4*a1*b1*
ka**2 - 14*a1*b1*ka*kc + 4*a2*b1*ka**2 + 3*b1**2*ka**2 + 3*b1*b2*ka**2) + 140*df(x1,t,2)*df(x1,t)**4*x1**4*x2**2*a1**4*
ka*(5*a1*kc - 3*b1*ka) + 280*df(x1,t,2)*df(x1,t)**4*x1**4*x2*x4*a1**4*b1*kc**2 + 5*df(x1,t,2)*df(x1,t)**4*x1**4*x2*a1**2
*vm*(5*a1**2*ka*kc - 56*a1**2*kc**2 + 54*a1*a2*ka*kc + 7*a1*b1*ka**2 + 42*a1*b1*ka*kc - 8*a2*b1*ka**2 - 6*b1**2*ka**2 - 
6*b1*b2*ka**2) + 140*df(x1,t,2)*df(x1,t)**4*x1**3*x2**3*a1**4*ka*( - 5*a1*kc + 2*b1*ka) - 420*df(x1,t,2)*df(x1,t)**4*x1
**3*x2**2*x4*a1**4*b1*kc**2 + 5*df(x1,t,2)*df(x1,t)**4*x1**3*x2**2*a1**2*vm*( - 33*a1**2*ka*kc + 84*a1**2*kc**2 - 54*a1*
a2*ka*kc - 2*a1*b1*ka**2 - 42*a1*b1*ka*kc + 4*a2*b1*ka**2 + 3*b1**2*ka**2 + 3*b1*b2*ka**2) + 70*df(x1,t,2)*df(x1,t)**4*
x1**2*x2**4*a1**4*ka*(5*a1*kc - b1*ka) + 280*df(x1,t,2)*df(x1,t)**4*x1**2*x2**3*x4*a1**4*b1*kc**2 + 5*df(x1,t,2)*df(x1,t
)**4*x1**2*x2**3*a1**3*vm*(39*a1*ka*kc - 56*a1*kc**2 + 18*a2*ka*kc - b1*ka**2 + 14*b1*ka*kc) - 70*df(x1,t,2)*df(x1,t)**4
*x1*x2**5*a1**5*ka*kc - 70*df(x1,t,2)*df(x1,t)**4*x1*x2**4*x4*a1**4*b1*kc**2 + 70*df(x1,t,2)*df(x1,t)**4*x1*x2**4*a1**4*
kc*vm*( - ka + kc) + 56*df(x1,t,2)*df(x1,t)**3*x1**7*a1**5*ka*(a1*kc - b1*ka) + 56*df(x1,t,2)*df(x1,t)**3*x1**6*x2*a1**5
*ka*( - 6*a1*kc + 5*b1*ka) - 56*df(x1,t,2)*df(x1,t)**3*x1**6*x4*a1**5*b1*kc**2 + df(x1,t,2)*df(x1,t)**3*x1**6*a1**3*vm*(
27*a1**2*ka*kc + 56*a1**2*kc**2 - 120*a1*a2*ka*kc - 25*a1*b1*ka**2 - 70*a1*b1*ka*kc + 40*a2*b1*ka**2 + 20*b1**2*ka**2 + 
20*b1*b2*ka**2) + 280*df(x1,t,2)*df(x1,t)**3*x1**5*x2**2*a1**5*ka*(3*a1*kc - 2*b1*ka) + 280*df(x1,t,2)*df(x1,t)**3*x1**5
*x2*x4*a1**5*b1*kc**2 + 20*df(x1,t,2)*df(x1,t)**3*x1**5*x2*a1**3*vm*( - 4*a1**2*ka*kc - 14*a1**2*kc**2 + 24*a1*a2*ka*kc 
+ 4*a1*b1*ka**2 + 14*a1*b1*ka*kc - 6*a2*b1*ka**2 - 3*b1**2*ka**2 - 3*b1*b2*ka**2) + 560*df(x1,t,2)*df(x1,t)**3*x1**4*x2
**3*a1**5*ka*( - 2*a1*kc + b1*ka) - 560*df(x1,t,2)*df(x1,t)**3*x1**4*x2**2*x4*a1**5*b1*kc**2 + 10*df(x1,t,2)*df(x1,t)**3
*x1**4*x2**2*a1**3*vm*(5*a1**2*ka*kc + 56*a1**2*kc**2 - 72*a1*a2*ka*kc - 9*a1*b1*ka**2 - 42*a1*b1*ka*kc + 12*a2*b1*ka**2
 + 6*b1**2*ka**2 + 6*b1*b2*ka**2) + 280*df(x1,t,2)*df(x1,t)**3*x1**3*x2**4*a1**5*ka*(3*a1*kc - b1*ka) + 560*df(x1,t,2)*
df(x1,t)**3*x1**3*x2**3*x4*a1**5*b1*kc**2 + 20*df(x1,t,2)*df(x1,t)**3*x1**3*x2**3*a1**3*vm*(3*a1**2*ka*kc - 28*a1**2*kc
**2 + 24*a1*a2*ka*kc + 2*a1*b1*ka**2 + 14*a1*b1*ka*kc - 2*a2*b1*ka**2 - b1**2*ka**2 - b1*b2*ka**2) + 56*df(x1,t,2)*df(x1
,t)**3*x1**2*x2**5*a1**5*ka*( - 6*a1*kc + b1*ka) - 280*df(x1,t,2)*df(x1,t)**3*x1**2*x2**4*x4*a1**5*b1*kc**2 + 5*df(x1,t,
2)*df(x1,t)**3*x1**2*x2**4*a1**4*vm*( - 17*a1*ka*kc + 56*a1*kc**2 - 24*a2*ka*kc - b1*ka**2 - 14*b1*ka*kc) + 56*df(x1,t,2
)*df(x1,t)**3*x1*x2**6*a1**6*ka*kc + 56*df(x1,t,2)*df(x1,t)**3*x1*x2**5*x4*a1**5*b1*kc**2 + 28*df(x1,t,2)*df(x1,t)**3*x1
*x2**5*a1**5*kc*vm*(ka - 2*kc) + 28*df(x1,t,2)*df(x1,t)**2*x1**8*a1**6*ka*(a1*kc - b1*ka) + 28*df(x1,t,2)*df(x1,t)**2*x1
**7*x2*a1**6*ka*( - 7*a1*kc + 6*b1*ka) - 28*df(x1,t,2)*df(x1,t)**2*x1**7*x4*a1**6*b1*kc**2 + df(x1,t,2)*df(x1,t)**2*x1**
7*a1**4*vm*(15*a1**2*ka*kc + 28*a1**2*kc**2 - 90*a1*a2*ka*kc - 14*a1*b1*ka**2 - 42*a1*b1*ka*kc + 40*a2*b1*ka**2 + 15*b1
**2*ka**2 + 15*b1*b2*ka**2) + 84*df(x1,t,2)*df(x1,t)**2*x1**6*x2**2*a1**6*ka*(7*a1*kc - 5*b1*ka) + 168*df(x1,t,2)*df(x1,
t)**2*x1**6*x2*x4*a1**6*b1*kc**2 + df(x1,t,2)*df(x1,t)**2*x1**6*x2*a1**4*vm*( - 75*a1**2*ka*kc - 168*a1**2*kc**2 + 450*
a1*a2*ka*kc + 65*a1*b1*ka**2 + 210*a1*b1*ka*kc - 160*a2*b1*ka**2 - 60*b1**2*ka**2 - 60*b1*b2*ka**2) + 140*df(x1,t,2)*df(
x1,t)**2*x1**5*x2**3*a1**6*ka*( - 7*a1*kc + 4*b1*ka) - 420*df(x1,t,2)*df(x1,t)**2*x1**5*x2**2*x4*a1**6*b1*kc**2 + 30*df(
x1,t,2)*df(x1,t)**2*x1**5*x2**2*a1**4*vm*(5*a1**2*ka*kc + 14*a1**2*kc**2 - 30*a1*a2*ka*kc - 4*a1*b1*ka**2 - 14*a1*b1*ka*
kc + 8*a2*b1*ka**2 + 3*b1**2*ka**2 + 3*b1*b2*ka**2) + 140*df(x1,t,2)*df(x1,t)**2*x1**4*x2**4*a1**6*ka*(7*a1*kc - 3*b1*ka
) + 560*df(x1,t,2)*df(x1,t)**2*x1**4*x2**3*x4*a1**6*b1*kc**2 + 10*df(x1,t,2)*df(x1,t)**2*x1**4*x2**3*a1**4*vm*( - 15*a1
**2*ka*kc - 56*a1**2*kc**2 + 90*a1*a2*ka*kc + 11*a1*b1*ka**2 + 42*a1*b1*ka*kc - 16*a2*b1*ka**2 - 6*b1**2*ka**2 - 6*b1*b2
*ka**2) + 84*df(x1,t,2)*df(x1,t)**2*x1**3*x2**5*a1**6*ka*( - 7*a1*kc + 2*b1*ka) - 420*df(x1,t,2)*df(x1,t)**2*x1**3*x2**4
*x4*a1**6*b1*kc**2 + 5*df(x1,t,2)*df(x1,t)**2*x1**3*x2**4*a1**4*vm*(15*a1**2*ka*kc + 84*a1**2*kc**2 - 90*a1*a2*ka*kc - 
10*a1*b1*ka**2 - 42*a1*b1*ka*kc + 8*a2*b1*ka**2 + 3*b1**2*ka**2 + 3*b1*b2*ka**2) + 28*df(x1,t,2)*df(x1,t)**2*x1**2*x2**6
*a1**6*ka*(7*a1*kc - b1*ka) + 168*df(x1,t,2)*df(x1,t)**2*x1**2*x2**5*x4*a1**6*b1*kc**2 + 3*df(x1,t,2)*df(x1,t)**2*x1**2*
x2**5*a1**5*vm*( - 5*a1*ka*kc - 56*a1*kc**2 + 30*a2*ka*kc + 3*b1*ka**2 + 14*b1*ka*kc) - 28*df(x1,t,2)*df(x1,t)**2*x1*x2
**7*a1**7*ka*kc - 28*df(x1,t,2)*df(x1,t)**2*x1*x2**6*x4*a1**6*b1*kc**2 + 28*df(x1,t,2)*df(x1,t)**2*x1*x2**6*a1**6*kc**2*
vm + 8*df(x1,t,2)*df(x1,t)*x1**9*a1**7*ka*(a1*kc - b1*ka) + 8*df(x1,t,2)*df(x1,t)*x1**8*x2*a1**7*ka*( - 8*a1*kc + 7*b1*
ka) - 8*df(x1,t,2)*df(x1,t)*x1**8*x4*a1**7*b1*kc**2 + df(x1,t,2)*df(x1,t)*x1**8*a1**5*vm*(3*a1**2*ka*kc + 8*a1**2*kc**2 
- 36*a1*a2*ka*kc - 3*a1*b1*ka**2 - 14*a1*b1*ka*kc + 20*a2*b1*ka**2 + 6*b1**2*ka**2 + 6*b1*b2*ka**2) + 56*df(x1,t,2)*df(
x1,t)*x1**7*x2**2*a1**7*ka*(4*a1*kc - 3*b1*ka) + 56*df(x1,t,2)*df(x1,t)*x1**7*x2*x4*a1**7*b1*kc**2 + 2*df(x1,t,2)*df(x1,
t)*x1**7*x2*a1**5*vm*( - 11*a1**2*ka*kc - 28*a1**2*kc**2 + 108*a1*a2*ka*kc + 10*a1*b1*ka**2 + 42*a1*b1*ka*kc - 50*a2*b1*
ka**2 - 15*b1**2*ka**2 - 15*b1*b2*ka**2) + 56*df(x1,t,2)*df(x1,t)*x1**6*x2**3*a1**7*ka*( - 8*a1*kc + 5*b1*ka) - 168*df(
x1,t,2)*df(x1,t)*x1**6*x2**2*x4*a1**7*b1*kc**2 + df(x1,t,2)*df(x1,t)*x1**6*x2**2*a1**5*vm*(69*a1**2*ka*kc + 168*a1**2*kc
**2 - 540*a1*a2*ka*kc - 55*a1*b1*ka**2 - 210*a1*b1*ka*kc + 200*a2*b1*ka**2 + 60*b1**2*ka**2 + 60*b1*b2*ka**2) + 280*df(
x1,t,2)*df(x1,t)*x1**5*x2**4*a1**7*ka*(2*a1*kc - b1*ka) + 280*df(x1,t,2)*df(x1,t)*x1**5*x2**3*x4*a1**7*b1*kc**2 + 20*df(
x1,t,2)*df(x1,t)*x1**5*x2**3*a1**5*vm*( - 6*a1**2*ka*kc - 14*a1**2*kc**2 + 36*a1*a2*ka*kc + 4*a1*b1*ka**2 + 14*a1*b1*ka*
kc - 10*a2*b1*ka**2 - 3*b1**2*ka**2 - 3*b1*b2*ka**2) + 56*df(x1,t,2)*df(x1,t)*x1**4*x2**5*a1**7*ka*( - 8*a1*kc + 3*b1*ka
) - 280*df(x1,t,2)*df(x1,t)*x1**4*x2**4*x4*a1**7*b1*kc**2 + 5*df(x1,t,2)*df(x1,t)*x1**4*x2**4*a1**5*vm*(25*a1**2*ka*kc +
 56*a1**2*kc**2 - 108*a1*a2*ka*kc - 13*a1*b1*ka**2 - 42*a1*b1*ka*kc + 20*a2*b1*ka**2 + 6*b1**2*ka**2 + 6*b1*b2*ka**2) + 
56*df(x1,t,2)*df(x1,t)*x1**3*x2**6*a1**7*ka*(4*a1*kc - b1*ka) + 168*df(x1,t,2)*df(x1,t)*x1**3*x2**5*x4*a1**7*b1*kc**2 + 
2*df(x1,t,2)*df(x1,t)*x1**3*x2**5*a1**5*vm*( - 39*a1**2*ka*kc - 84*a1**2*kc**2 + 108*a1*a2*ka*kc + 14*a1*b1*ka**2 + 42*
a1*b1*ka*kc - 10*a2*b1*ka**2 - 3*b1**2*ka**2 - 3*b1*b2*ka**2) + 8*df(x1,t,2)*df(x1,t)*x1**2*x2**7*a1**7*ka*( - 8*a1*kc +
 b1*ka) - 56*df(x1,t,2)*df(x1,t)*x1**2*x2**6*x4*a1**7*b1*kc**2 + df(x1,t,2)*df(x1,t)*x1**2*x2**6*a1**6*vm*(27*a1*ka*kc +
 56*a1*kc**2 - 36*a2*ka*kc - 5*b1*ka**2 - 14*b1*ka*kc) + 8*df(x1,t,2)*df(x1,t)*x1*x2**8*a1**8*ka*kc + 8*df(x1,t,2)*df(x1
,t)*x1*x2**7*x4*a1**7*b1*kc**2 + 4*df(x1,t,2)*df(x1,t)*x1*x2**7*a1**7*kc*vm*( - ka - 2*kc) + df(x1,t,2)*x1**10*a1**8*ka*
(a1*kc - b1*ka) + df(x1,t,2)*x1**9*x2*a1**8*ka*( - 9*a1*kc + 8*b1*ka) - df(x1,t,2)*x1**9*x4*a1**8*b1*kc**2 + df(x1,t,2)*
x1**9*a1**6*vm*(a1**2*kc**2 - 6*a1*a2*ka*kc - 2*a1*b1*ka*kc + 4*a2*b1*ka**2 + b1**2*ka**2 + b1*b2*ka**2) + 4*df(x1,t,2)*
x1**8*x2**2*a1**8*ka*(9*a1*kc - 7*b1*ka) + 8*df(x1,t,2)*x1**8*x2*x4*a1**8*b1*kc**2 + df(x1,t,2)*x1**8*x2*a1**6*vm*( - a1
**2*ka*kc - 8*a1**2*kc**2 + 42*a1*a2*ka*kc + a1*b1*ka**2 + 14*a1*b1*ka*kc - 24*a2*b1*ka**2 - 6*b1**2*ka**2 - 6*b1*b2*ka
**2) + 28*df(x1,t,2)*x1**7*x2**3*a1**8*ka*( - 3*a1*kc + 2*b1*ka) - 28*df(x1,t,2)*x1**7*x2**2*x4*a1**8*b1*kc**2 + df(x1,t
,2)*x1**7*x2**2*a1**6*vm*(7*a1**2*ka*kc + 28*a1**2*kc**2 - 126*a1*a2*ka*kc - 6*a1*b1*ka**2 - 42*a1*b1*ka*kc + 60*a2*b1*
ka**2 + 15*b1**2*ka**2 + 15*b1*b2*ka**2) + 14*df(x1,t,2)*x1**6*x2**4*a1**8*ka*(9*a1*kc - 5*b1*ka) + 56*df(x1,t,2)*x1**6*
x2**3*x4*a1**8*b1*kc**2 + df(x1,t,2)*x1**6*x2**3*a1**6*vm*( - 21*a1**2*ka*kc - 56*a1**2*kc**2 + 210*a1*a2*ka*kc + 15*a1*
b1*ka**2 + 70*a1*b1*ka*kc - 80*a2*b1*ka**2 - 20*b1**2*ka**2 - 20*b1*b2*ka**2) + 14*df(x1,t,2)*x1**5*x2**5*a1**8*ka*( - 9
*a1*kc + 4*b1*ka) - 70*df(x1,t,2)*x1**5*x2**4*x4*a1**8*b1*kc**2 + 5*df(x1,t,2)*x1**5*x2**4*a1**6*vm*(7*a1**2*ka*kc + 14*
a1**2*kc**2 - 42*a1*a2*ka*kc - 4*a1*b1*ka**2 - 14*a1*b1*ka*kc + 12*a2*b1*ka**2 + 3*b1**2*ka**2 + 3*b1*b2*ka**2) + 28*df(
x1,t,2)*x1**4*x2**6*a1**8*ka*(3*a1*kc - b1*ka) + 56*df(x1,t,2)*x1**4*x2**5*x4*a1**8*b1*kc**2 + df(x1,t,2)*x1**4*x2**5*a1
**6*vm*( - 35*a1**2*ka*kc - 56*a1**2*kc**2 + 126*a1*a2*ka*kc + 15*a1*b1*ka**2 + 42*a1*b1*ka*kc - 24*a2*b1*ka**2 - 6*b1**
2*ka**2 - 6*b1*b2*ka**2) + 4*df(x1,t,2)*x1**3*x2**7*a1**8*ka*( - 9*a1*kc + 2*b1*ka) - 28*df(x1,t,2)*x1**3*x2**6*x4*a1**8
*b1*kc**2 + df(x1,t,2)*x1**3*x2**6*a1**6*vm*(21*a1**2*ka*kc + 28*a1**2*kc**2 - 42*a1*a2*ka*kc - 6*a1*b1*ka**2 - 14*a1*b1
*ka*kc + 4*a2*b1*ka**2 + b1**2*ka**2 + b1*b2*ka**2) + df(x1,t,2)*x1**2*x2**8*a1**8*ka*(9*a1*kc - b1*ka) + 8*df(x1,t,2)*
x1**2*x2**7*x4*a1**8*b1*kc**2 + df(x1,t,2)*x1**2*x2**7*a1**7*vm*( - 7*a1*ka*kc - 8*a1*kc**2 + 6*a2*ka*kc + b1*ka**2 + 2*
b1*ka*kc) - df(x1,t,2)*x1*x2**9*a1**9*ka*kc - df(x1,t,2)*x1*x2**8*x4*a1**8*b1*kc**2 + df(x1,t,2)*x1*x2**8*a1**8*kc*vm*(
ka + kc) + df(x1,t)**11*kc*(ka - kc) + 2*df(x1,t)**10*x1*kc*(4*a1*ka - 5*a1*kc + b1*ka) + df(x1,t)**10*x2*a1*kc*( - 9*ka
 + 10*kc) + df(x1,t)**10*x4*b1*kc**2 + df(x1,t)**10*kc*vm*(ka - kc) + df(x1,t)**9*x1**2*(28*a1**2*ka*kc - 45*a1**2*kc**2
 + a1*a2*ka*kc + 18*a1*b1*ka*kc - b1**2*ka**2 - b1*b2*ka**2) + df(x1,t)**9*x1*x2*a1*kc*( - 64*a1*ka + 90*a1*kc - a2*ka -
 18*b1*ka) + df(x1,t)**9*x1*x4*b1*kc**2*(8*a1 - b2) + 2*df(x1,t)**9*x1*kc*vm*(2*a1*ka - 4*a1*kc + b1*ka) + 9*df(x1,t)**9
*x2**2*a1**2*kc*(4*ka - 5*kc) - 9*df(x1,t)**9*x2*x4*a1*b1*kc**2 + df(x1,t)**9*x2*a1*kc*vm*( - 8*ka + 9*kc) + 8*df(x1,t)
**8*x1**3*a1*(7*a1**2*ka*kc - 15*a1**2*kc**2 + a1*a2*ka*kc + 9*a1*b1*ka*kc - b1**2*ka**2 - b1*b2*ka**2) + 4*df(x1,t)**8*
x1**2*x2*a1*( - 49*a1**2*ka*kc + 90*a1**2*kc**2 - 4*a1*a2*ka*kc - 36*a1*b1*ka*kc + 2*b1**2*ka**2 + 2*b1*b2*ka**2) + df(
x1,t)**8*x1**2*x4*a1*b1*kc**2*(28*a1 + a2 - 9*b2) + df(x1,t)**8*x1**2*vm*(3*a1**2*ka*kc - 28*a1**2*kc**2 + 5*a1*a2*ka*kc
 - a1*a2*kc**2 + 2*a1*b1*ka**2 + 14*a1*b1*ka*kc - b1**2*ka**2 - b1*b2*ka**2) + 8*df(x1,t)**8*x1*x2**2*a1**2*kc*(28*a1*ka
 - 45*a1*kc + a2*ka + 9*b1*ka) + df(x1,t)**8*x1*x2*x4*a1*b1*kc**2*( - 64*a1 - a2 + 9*b2) + df(x1,t)**8*x1*x2*a1*kc*vm*( 
- 28*a1*ka + 64*a1*kc - 4*a2*ka + a2*kc - 16*b1*ka) + 12*df(x1,t)**8*x2**3*a1**3*kc*( - 7*ka + 10*kc) + 36*df(x1,t)**8*
x2**2*x4*a1**2*b1*kc**2 + 4*df(x1,t)**8*x2**2*a1**2*kc*vm*(7*ka - 9*kc) + 14*df(x1,t)**7*x1**4*a1**2*(5*a1**2*ka*kc - 15
*a1**2*kc**2 + 2*a1*a2*ka*kc + 12*a1*b1*ka*kc - 2*b1**2*ka**2 - 2*b1*b2*ka**2) + 28*df(x1,t)**7*x1**3*x2*a1**2*( - 12*a1
**2*ka*kc + 30*a1**2*kc**2 - 3*a1*a2*ka*kc - 18*a1*b1*ka*kc + 2*b1**2*ka**2 + 2*b1*b2*ka**2) + 4*df(x1,t)**7*x1**3*x4*a1
**2*b1*kc**2*(14*a1 + 2*a2 - 9*b2) + df(x1,t)**7*x1**3*a1*vm*( - 10*a1**2*ka*kc - 56*a1**2*kc**2 + 29*a1*a2*ka*kc - 8*a1
*a2*kc**2 + 10*a1*b1*ka**2 + 42*a1*b1*ka*kc - a2**2*ka*kc - 3*a2*b1*ka**2 + 2*a2*b1*ka*kc - 6*b1**2*ka**2 - 6*b1*b2*ka**
2) + 28*df(x1,t)**7*x1**2*x2**2*a1**2*(21*a1**2*ka*kc - 45*a1**2*kc**2 + 3*a1*a2*ka*kc + 18*a1*b1*ka*kc - b1**2*ka**2 - 
b1*b2*ka**2) + 4*df(x1,t)**7*x1**2*x2*x4*a1**2*b1*kc**2*( - 49*a1 - 4*a2 + 18*b2) + df(x1,t)**7*x1**2*x2*a1*vm*( - 18*a1
**2*ka*kc + 196*a1**2*kc**2 - 57*a1*a2*ka*kc + 16*a1*a2*kc**2 - 12*a1*b1*ka**2 - 98*a1*b1*ka*kc + a2**2*ka*kc + 2*a2*b1*
ka**2 - 2*a2*b1*ka*kc + 7*b1**2*ka**2 + 7*b1*b2*ka**2) + 28*df(x1,t)**7*x1*x2**3*a1**3*kc*( - 16*a1*ka + 30*a1*kc - a2*
ka - 6*b1*ka) + 4*df(x1,t)**7*x1*x2**2*x4*a1**2*b1*kc**2*(56*a1 + 2*a2 - 9*b2) + 4*df(x1,t)**7*x1*x2**2*a1**2*kc*vm*(21*
a1*ka - 56*a1*kc + 7*a2*ka - 2*a2*kc + 14*b1*ka) + 42*df(x1,t)**7*x2**4*a1**4*kc*(3*ka - 5*kc) - 84*df(x1,t)**7*x2**3*x4
*a1**3*b1*kc**2 + 28*df(x1,t)**7*x2**3*a1**3*kc*vm*( - 2*ka + 3*kc) + 28*df(x1,t)**6*x1**5*a1**3*(2*a1**2*ka*kc - 9*a1**
2*kc**2 + 2*a1*a2*ka*kc + 9*a1*b1*ka*kc - 2*b1**2*ka**2 - 2*b1*b2*ka**2) + 14*df(x1,t)**6*x1**4*x2*a1**3*( - 25*a1**2*ka
*kc + 90*a1**2*kc**2 - 16*a1*a2*ka*kc - 72*a1*b1*ka*kc + 12*b1**2*ka**2 + 12*b1*b2*ka**2) + 14*df(x1,t)**6*x1**4*x4*a1**
3*b1*kc**2*(5*a1 + 2*a2 - 6*b2) + df(x1,t)**6*x1**4*a1*vm*( - 25*a1**3*ka*kc - 70*a1**3*kc**2 + 69*a1**2*a2*ka*kc - 28*
a1**2*a2*kc**2 + 20*a1**2*b1*ka**2 + 70*a1**2*b1*ka*kc - 4*a1*a2**2*ka*kc - 14*a1*a2*b1*ka**2 + 14*a1*a2*b1*ka*kc - 15*
a1*b1**2*ka**2 - 15*a1*b1*b2*ka**2 + a2**2*b1*ka**2 - a2*b1**2*ka**2 - a2*b1*b2*ka**2) + 168*df(x1,t)**6*x1**3*x2**2*a1
**3*(5*a1**2*ka*kc - 15*a1**2*kc**2 + 2*a1*a2*ka*kc + 9*a1*b1*ka*kc - b1**2*ka**2 - b1*b2*ka**2) + 84*df(x1,t)**6*x1**3*
x2*x4*a1**3*b1*kc**2*( - 4*a1 - a2 + 3*b2) + df(x1,t)**6*x1**3*x2*a1*vm*(50*a1**3*ka*kc + 336*a1**3*kc**2 - 222*a1**2*a2
*ka*kc + 84*a1**2*a2*kc**2 - 50*a1**2*b1*ka**2 - 252*a1**2*b1*ka*kc + 8*a1*a2**2*ka*kc + 26*a1*a2*b1*ka**2 - 28*a1*a2*b1
*ka*kc + 36*a1*b1**2*ka**2 + 36*a1*b1*b2*ka**2 - a2**2*b1*ka**2 + a2*b1**2*ka**2 + a2*b1*b2*ka**2) + 28*df(x1,t)**6*x1**
2*x2**3*a1**3*( - 35*a1**2*ka*kc + 90*a1**2*kc**2 - 8*a1*a2*ka*kc - 36*a1*b1*ka*kc + 2*b1**2*ka**2 + 2*b1*b2*ka**2) + 84
*df(x1,t)**6*x1**2*x2**2*x4*a1**3*b1*kc**2*(7*a1 + a2 - 3*b2) + df(x1,t)**6*x1**2*x2**2*a1**2*vm*(45*a1**2*ka*kc - 588*
a1**2*kc**2 + 237*a1*a2*ka*kc - 84*a1*a2*kc**2 + 30*a1*b1*ka**2 + 294*a1*b1*ka*kc - 4*a2**2*ka*kc - 12*a2*b1*ka**2 + 14*
a2*b1*ka*kc - 21*b1**2*ka**2 - 21*b1*b2*ka**2) + 28*df(x1,t)**6*x1*x2**4*a1**4*kc*(20*a1*ka - 45*a1*kc + 2*a2*ka + 9*b1*
ka) + 28*df(x1,t)**6*x1*x2**3*x4*a1**3*b1*kc**2*( - 16*a1 - a2 + 3*b2) + 28*df(x1,t)**6*x1*x2**3*a1**3*kc*vm*( - 5*a1*ka
 + 16*a1*kc - 3*a2*ka + a2*kc - 4*b1*ka) + 126*df(x1,t)**6*x2**5*a1**5*kc*( - ka + 2*kc) + 126*df(x1,t)**6*x2**4*x4*a1**
4*b1*kc**2 + 14*df(x1,t)**6*x2**4*a1**4*kc*vm*(5*ka - 9*kc) + 14*df(x1,t)**5*x1**6*a1**4*(2*a1**2*ka*kc - 15*a1**2*kc**2
 + 5*a1*a2*ka*kc + 18*a1*b1*ka*kc - 5*b1**2*ka**2 - 5*b1*b2*ka**2) + 14*df(x1,t)**5*x1**5*x2*a1**4*( - 16*a1**2*ka*kc + 
90*a1**2*kc**2 - 25*a1*a2*ka*kc - 90*a1*b1*ka*kc + 20*b1**2*ka**2 + 20*b1*b2*ka**2) + 14*df(x1,t)**5*x1**5*x4*a1**4*b1*
kc**2*(4*a1 + 4*a2 - 9*b2) + df(x1,t)**5*x1**5*a1**2*vm*( - 24*a1**3*ka*kc - 56*a1**3*kc**2 + 85*a1**2*a2*ka*kc - 56*a1
**2*a2*kc**2 + 20*a1**2*b1*ka**2 + 70*a1**2*b1*ka*kc - 3*a1*a2**2*ka*kc - 25*a1*a2*b1*ka**2 + 42*a1*a2*b1*ka*kc - 20*a1*
b1**2*ka**2 - 20*a1*b1*b2*ka**2 + 4*a2**2*b1*ka**2 - 6*a2*b1**2*ka**2 - 6*a2*b1*b2*ka**2) + 70*df(x1,t)**5*x1**4*x2**2*
a1**4*(10*a1**2*ka*kc - 45*a1**2*kc**2 + 10*a1*a2*ka*kc + 36*a1*b1*ka*kc - 6*b1**2*ka**2 - 6*b1*b2*ka**2) + 14*df(x1,t)
**5*x1**4*x2*x4*a1**4*b1*kc**2*( - 25*a1 - 16*a2 + 36*b2) + df(x1,t)**5*x1**4*x2*a1**2*vm*(100*a1**3*ka*kc + 350*a1**3*
kc**2 - 395*a1**2*a2*ka*kc + 224*a1**2*a2*kc**2 - 80*a1**2*b1*ka**2 - 350*a1**2*b1*ka*kc + 9*a1*a2**2*ka*kc + 80*a1*a2*
b1*ka**2 - 126*a1*a2*b1*ka*kc + 75*a1*b1**2*ka**2 + 75*a1*b1*b2*ka**2 - 8*a2**2*b1*ka**2 + 12*a2*b1**2*ka**2 + 12*a2*b1*
b2*ka**2) + 140*df(x1,t)**5*x1**3*x2**3*a1**4*( - 8*a1**2*ka*kc + 30*a1**2*kc**2 - 5*a1*a2*ka*kc - 18*a1*b1*ka*kc + 2*b1
**2*ka**2 + 2*b1*b2*ka**2) + 84*df(x1,t)**5*x1**3*x2**2*x4*a1**4*b1*kc**2*(10*a1 + 4*a2 - 9*b2) + df(x1,t)**5*x1**3*x2**
2*a1**2*vm*( - 100*a1**3*ka*kc - 840*a1**3*kc**2 + 675*a1**2*a2*ka*kc - 336*a1**2*a2*kc**2 + 100*a1**2*b1*ka**2 + 630*a1
**2*b1*ka*kc - 9*a1*a2**2*ka*kc - 85*a1*a2*b1*ka**2 + 126*a1*a2*b1*ka*kc - 90*a1*b1**2*ka**2 - 90*a1*b1*b2*ka**2 + 4*a2
**2*b1*ka**2 - 6*a2*b1**2*ka**2 - 6*a2*b1*b2*ka**2) + 70*df(x1,t)**5*x1**2*x2**4*a1**4*(14*a1**2*ka*kc - 45*a1**2*kc**2 
+ 5*a1*a2*ka*kc + 18*a1*b1*ka*kc - b1**2*ka**2 - b1*b2*ka**2) + 28*df(x1,t)**5*x1**2*x2**3*x4*a1**4*b1*kc**2*( - 35*a1 -
 8*a2 + 18*b2) + df(x1,t)**5*x1**2*x2**3*a1**3*vm*( - 60*a1**2*ka*kc + 980*a1**2*kc**2 - 505*a1*a2*ka*kc + 224*a1*a2*kc
**2 - 40*a1*b1*ka**2 - 490*a1*b1*ka*kc + 3*a2**2*ka*kc + 30*a2*b1*ka**2 - 42*a2*b1*ka*kc + 35*b1**2*ka**2 + 35*b1*b2*ka
**2) + 14*df(x1,t)**5*x1*x2**5*a1**5*kc*( - 32*a1*ka + 90*a1*kc - 5*a2*ka - 18*b1*ka) + 14*df(x1,t)**5*x1*x2**4*x4*a1**4
*b1*kc**2*(40*a1 + 4*a2 - 9*b2) + 28*df(x1,t)**5*x1*x2**4*a1**4*kc*vm*(5*a1*ka - 20*a1*kc + 5*a2*ka - 2*a2*kc + 5*b1*ka)
 + 42*df(x1,t)**5*x2**6*a1**6*kc*(2*ka - 5*kc) - 126*df(x1,t)**5*x2**5*x4*a1**5*b1*kc**2 + 14*df(x1,t)**5*x2**5*a1**5*kc
*vm*( - 4*ka + 9*kc) + 8*df(x1,t)**4*x1**7*a1**5*(a1**2*ka*kc - 15*a1**2*kc**2 + 7*a1*a2*ka*kc + 21*a1*b1*ka*kc - 7*b1**
2*ka**2 - 7*b1*b2*ka**2) + 28*df(x1,t)**4*x1**6*x2*a1**5*( - 3*a1**2*ka*kc + 30*a1**2*kc**2 - 12*a1*a2*ka*kc - 36*a1*b1*
ka*kc + 10*b1**2*ka**2 + 10*b1*b2*ka**2) + 14*df(x1,t)**4*x1**6*x4*a1**5*b1*kc**2*(2*a1 + 5*a2 - 9*b2) + df(x1,t)**4*x1
**6*a1**3*vm*( - 11*a1**3*ka*kc - 28*a1**3*kc**2 + 55*a1**2*a2*ka*kc - 70*a1**2*a2*kc**2 + 10*a1**2*b1*ka**2 + 42*a1**2*
b1*ka*kc + 10*a1*a2**2*ka*kc - 20*a1*a2*b1*ka**2 + 70*a1*a2*b1*ka*kc - 15*a1*b1**2*ka**2 - 15*a1*b1*b2*ka**2 + 5*a2**2*
b1*ka**2 - 15*a2*b1**2*ka**2 - 15*a2*b1*b2*ka**2) + 56*df(x1,t)**4*x1**5*x2**2*a1**5*(6*a1**2*ka*kc - 45*a1**2*kc**2 + 
15*a1*a2*ka*kc + 45*a1*b1*ka*kc - 10*b1**2*ka**2 - 10*b1*b2*ka**2) + 14*df(x1,t)**4*x1**5*x2*x4*a1**5*b1*kc**2*( - 16*a1
 - 25*a2 + 45*b2) + df(x1,t)**4*x1**5*x2*a1**3*vm*(72*a1**3*ka*kc + 224*a1**3*kc**2 - 360*a1**2*a2*ka*kc + 350*a1**2*a2*
kc**2 - 60*a1**2*b1*ka**2 - 280*a1**2*b1*ka*kc - 40*a1*a2**2*ka*kc + 100*a1*a2*b1*ka**2 - 280*a1*a2*b1*ka*kc + 80*a1*b1
**2*ka**2 + 80*a1*b1*b2*ka**2 - 15*a2**2*b1*ka**2 + 45*a2*b1**2*ka**2 + 45*a2*b1*b2*ka**2) + 140*df(x1,t)**4*x1**4*x2**3
*a1**5*( - 5*a1**2*ka*kc + 30*a1**2*kc**2 - 8*a1*a2*ka*kc - 24*a1*b1*ka*kc + 4*b1**2*ka**2 + 4*b1*b2*ka**2) + 140*df(x1,
t)**4*x1**4*x2**2*x4*a1**5*b1*kc**2*(5*a1 + 5*a2 - 9*b2) + 5*df(x1,t)**4*x1**4*x2**2*a1**3*vm*( - 30*a1**3*ka*kc - 140*
a1**3*kc**2 + 178*a1**2*a2*ka*kc - 140*a1**2*a2*kc**2 + 24*a1**2*b1*ka**2 + 140*a1**2*b1*ka*kc + 12*a1*a2**2*ka*kc - 36*
a1*a2*b1*ka**2 + 84*a1*a2*b1*ka*kc - 30*a1*b1**2*ka**2 - 30*a1*b1*b2*ka**2 + 3*a2**2*b1*ka**2 - 9*a2*b1**2*ka**2 - 9*a2*
b1*b2*ka**2) + 280*df(x1,t)**4*x1**3*x2**4*a1**5*(3*a1**2*ka*kc - 15*a1**2*kc**2 + 3*a1*a2*ka*kc + 9*a1*b1*ka*kc - b1**2
*ka**2 - b1*b2*ka**2) + 140*df(x1,t)**4*x1**3*x2**3*x4*a1**5*b1*kc**2*( - 8*a1 - 5*a2 + 9*b2) + 5*df(x1,t)**4*x1**3*x2**
3*a1**3*vm*(20*a1**3*ka*kc + 224*a1**3*kc**2 - 212*a1**2*a2*ka*kc + 140*a1**2*a2*kc**2 - 20*a1**2*b1*ka**2 - 168*a1**2*
b1*ka*kc - 8*a1*a2**2*ka*kc + 28*a1*a2*b1*ka**2 - 56*a1*a2*b1*ka*kc + 24*a1*b1**2*ka**2 + 24*a1*b1*b2*ka**2 - a2**2*b1*
ka**2 + 3*a2*b1**2*ka**2 + 3*a2*b1*b2*ka**2) + 28*df(x1,t)**4*x1**2*x2**5*a1**5*( - 21*a1**2*ka*kc + 90*a1**2*kc**2 - 12
*a1*a2*ka*kc - 36*a1*b1*ka*kc + 2*b1**2*ka**2 + 2*b1*b2*ka**2) + 70*df(x1,t)**4*x1**2*x2**4*x4*a1**5*b1*kc**2*(14*a1 + 5
*a2 - 9*b2) + 5*df(x1,t)**4*x1**2*x2**4*a1**4*vm*(9*a1**2*ka*kc - 196*a1**2*kc**2 + 123*a1*a2*ka*kc - 70*a1*a2*kc**2 + 6
*a1*b1*ka**2 + 98*a1*b1*ka*kc + 2*a2**2*ka*kc - 8*a2*b1*ka**2 + 14*a2*b1*ka*kc - 7*b1**2*ka**2 - 7*b1*b2*ka**2) + 56*df(
x1,t)**4*x1*x2**6*a1**6*kc*(4*a1*ka - 15*a1*kc + a2*ka + 3*b1*ka) + 14*df(x1,t)**4*x1*x2**5*x4*a1**5*b1*kc**2*( - 32*a1 
- 5*a2 + 9*b2) + 14*df(x1,t)**4*x1*x2**5*a1**5*kc*vm*( - 6*a1*ka + 32*a1*kc - 10*a2*ka + 5*a2*kc - 8*b1*ka) + 12*df(x1,t
)**4*x2**7*a1**7*kc*( - 3*ka + 10*kc) + 84*df(x1,t)**4*x2**6*x4*a1**6*b1*kc**2 + 28*df(x1,t)**4*x2**6*a1**6*kc*vm*(ka - 
3*kc) + df(x1,t)**3*x1**8*a1**6*(a1**2*ka*kc - 45*a1**2*kc**2 + 28*a1*a2*ka*kc + 72*a1*b1*ka*kc - 28*b1**2*ka**2 - 28*b1
*b2*ka**2) + 4*df(x1,t)**3*x1**7*x2*a1**6*( - 4*a1**2*ka*kc + 90*a1**2*kc**2 - 49*a1*a2*ka*kc - 126*a1*b1*ka*kc + 42*b1
**2*ka**2 + 42*b1*b2*ka**2) + 4*df(x1,t)**3*x1**7*x4*a1**6*b1*kc**2*(2*a1 + 14*a2 - 21*b2) + df(x1,t)**3*x1**7*a1**4*vm*
( - 2*a1**3*ka*kc - 8*a1**3*kc**2 + 15*a1**2*a2*ka*kc - 56*a1**2*a2*kc**2 + 2*a1**2*b1*ka**2 + 14*a1**2*b1*ka*kc + 25*a1
*a2**2*ka*kc - 5*a1*a2*b1*ka**2 + 70*a1*a2*b1*ka*kc - 6*a1*b1**2*ka**2 - 6*a1*b1*b2*ka**2 - 20*a2*b1**2*ka**2 - 20*a2*b1
*b2*ka**2) + 84*df(x1,t)**3*x1**6*x2**2*a1**6*(a1**2*ka*kc - 15*a1**2*kc**2 + 7*a1*a2*ka*kc + 18*a1*b1*ka*kc - 5*b1**2*
ka**2 - 5*b1*b2*ka**2) + 84*df(x1,t)**3*x1**6*x2*x4*a1**6*b1*kc**2*( - a1 - 4*a2 + 6*b2) + df(x1,t)**3*x1**6*x2*a1**4*vm
*(22*a1**3*ka*kc + 84*a1**3*kc**2 - 159*a1**2*a2*ka*kc + 336*a1**2*a2*kc**2 - 20*a1**2*b1*ka**2 - 126*a1**2*b1*ka*kc - 
125*a1*a2**2*ka*kc + 50*a1*a2*b1*ka**2 - 350*a1*a2*b1*ka*kc + 45*a1*b1**2*ka**2 + 45*a1*b1*b2*ka**2 + 80*a2*b1**2*ka**2 
+ 80*a2*b1*b2*ka**2) + 28*df(x1,t)**3*x1**5*x2**3*a1**6*( - 8*a1**2*ka*kc + 90*a1**2*kc**2 - 35*a1*a2*ka*kc - 90*a1*b1*
ka*kc + 20*b1**2*ka**2 + 20*b1*b2*ka**2) + 84*df(x1,t)**3*x1**5*x2**2*x4*a1**6*b1*kc**2*(4*a1 + 10*a2 - 15*b2) + 2*df(x1
,t)**3*x1**5*x2**2*a1**4*vm*( - 36*a1**3*ka*kc - 168*a1**3*kc**2 + 285*a1**2*a2*ka*kc - 420*a1**2*a2*kc**2 + 30*a1**2*b1
*ka**2 + 210*a1**2*b1*ka*kc + 125*a1*a2**2*ka*kc - 75*a1*a2*b1*ka**2 + 350*a1*a2*b1*ka*kc - 60*a1*b1**2*ka**2 - 60*a1*b1
*b2*ka**2 - 60*a2*b1**2*ka**2 - 60*a2*b1*b2*ka**2) + 70*df(x1,t)**3*x1**4*x2**4*a1**6*(5*a1**2*ka*kc - 45*a1**2*kc**2 + 
14*a1*a2*ka*kc + 36*a1*b1*ka*kc - 6*b1**2*ka**2 - 6*b1*b2*ka**2) + 140*df(x1,t)**3*x1**4*x2**3*x4*a1**6*b1*kc**2*( - 5*
a1 - 8*a2 + 12*b2) + 10*df(x1,t)**3*x1**4*x2**3*a1**4*vm*(10*a1**3*ka*kc + 70*a1**3*kc**2 - 99*a1**2*a2*ka*kc + 112*a1**
2*a2*kc**2 - 8*a1**2*b1*ka**2 - 70*a1**2*b1*ka*kc - 25*a1*a2**2*ka*kc + 20*a1*a2*b1*ka**2 - 70*a1*a2*b1*ka*kc + 15*a1*b1
**2*ka**2 + 15*a1*b1*b2*ka**2 + 8*a2*b1**2*ka**2 + 8*a2*b1*b2*ka**2) + 84*df(x1,t)**3*x1**3*x2**5*a1**6*( - 4*a1**2*ka*
kc + 30*a1**2*kc**2 - 7*a1*a2*ka*kc - 18*a1*b1*ka*kc + 2*b1**2*ka**2 + 2*b1*b2*ka**2) + 420*df(x1,t)**3*x1**3*x2**4*x4*
a1**6*b1*kc**2*(2*a1 + 2*a2 - 3*b2) + 5*df(x1,t)**3*x1**3*x2**4*a1**4*vm*( - 10*a1**3*ka*kc - 168*a1**3*kc**2 + 183*a1**
2*a2*ka*kc - 168*a1**2*a2*kc**2 + 10*a1**2*b1*ka**2 + 126*a1**2*b1*ka*kc + 25*a1*a2**2*ka*kc - 25*a1*a2*b1*ka**2 + 70*a1
*a2*b1*ka*kc - 18*a1*b1**2*ka**2 - 18*a1*b1*b2*ka**2 - 4*a2*b1**2*ka**2 - 4*a2*b1*b2*ka**2) + 28*df(x1,t)**3*x1**2*x2**6
*a1**6*(7*a1**2*ka*kc - 45*a1**2*kc**2 + 7*a1*a2*ka*kc + 18*a1*b1*ka*kc - b1**2*ka**2 - b1*b2*ka**2) + 84*df(x1,t)**3*x1
**2*x2**5*x4*a1**6*b1*kc**2*( - 7*a1 - 4*a2 + 6*b2) + df(x1,t)**3*x1**2*x2**5*a1**5*vm*( - 18*a1**2*ka*kc + 588*a1**2*kc
**2 - 435*a1*a2*ka*kc + 336*a1*a2*kc**2 - 12*a1*b1*ka**2 - 294*a1*b1*ka*kc - 25*a2**2*ka*kc + 30*a2*b1*ka**2 - 70*a2*b1*
ka*kc + 21*b1**2*ka**2 + 21*b1*b2*ka**2) + 4*df(x1,t)**3*x1*x2**7*a1**7*kc*( - 16*a1*ka + 90*a1*kc - 7*a2*ka - 18*b1*ka)
 + 28*df(x1,t)**3*x1*x2**6*x4*a1**6*b1*kc**2*(8*a1 + 2*a2 - 3*b2) + 28*df(x1,t)**3*x1*x2**6*a1**6*kc*vm*(a1*ka - 8*a1*kc
 + 3*a2*ka - 2*a2*kc + 2*b1*ka) + 9*df(x1,t)**3*x2**8*a1**8*kc*(ka - 5*kc) - 36*df(x1,t)**3*x2**7*x4*a1**7*b1*kc**2 + 4*
df(x1,t)**3*x2**7*a1**7*kc*vm*( - 2*ka + 9*kc) + 2*df(x1,t)**2*x1**9*a1**7*( - 5*a1**2*kc**2 + 4*a1*a2*ka*kc + 9*a1*b1*
ka*kc - 4*b1**2*ka**2 - 4*b1*b2*ka**2) + df(x1,t)**2*x1**8*x2*a1**7*( - a1**2*ka*kc + 90*a1**2*kc**2 - 64*a1*a2*ka*kc - 
144*a1*b1*ka*kc + 56*b1**2*ka**2 + 56*b1*b2*ka**2) + df(x1,t)**2*x1**8*x4*a1**7*b1*kc**2*(a1 + 28*a2 - 36*b2) + df(x1,t)
**2*x1**8*a1**5*vm*( - a1**3*kc**2 - a1**2*a2*ka*kc - 28*a1**2*a2*kc**2 + 2*a1**2*b1*ka*kc + 24*a1*a2**2*ka*kc + 2*a1*a2
*b1*ka**2 + 42*a1*a2*b1*ka*kc - a1*b1**2*ka**2 - a1*b1*b2*ka**2 - 5*a2**2*b1*ka**2 - 15*a2*b1**2*ka**2 - 15*a2*b1*b2*ka
**2) + 8*df(x1,t)**2*x1**7*x2**2*a1**7*(a1**2*ka*kc - 45*a1**2*kc**2 + 28*a1*a2*ka*kc + 63*a1*b1*ka*kc - 21*b1**2*ka**2 
- 21*b1*b2*ka**2) + 4*df(x1,t)**2*x1**7*x2*x4*a1**7*b1*kc**2*( - 4*a1 - 49*a2 + 63*b2) + df(x1,t)**2*x1**7*x2*a1**5*vm*(
2*a1**3*ka*kc + 16*a1**3*kc**2 - 22*a1**2*a2*ka*kc + 196*a1**2*a2*kc**2 - 2*a1**2*b1*ka**2 - 28*a1**2*b1*ka*kc - 144*a1*
a2**2*ka*kc + 2*a1*a2*b1*ka**2 - 252*a1*a2*b1*ka*kc + 12*a1*b1**2*ka**2 + 12*a1*b1*b2*ka**2 + 25*a2**2*b1*ka**2 + 75*a2*
b1**2*ka**2 + 75*a2*b1*b2*ka**2) + 28*df(x1,t)**2*x1**6*x2**3*a1**7*( - a1**2*ka*kc + 30*a1**2*kc**2 - 16*a1*a2*ka*kc - 
36*a1*b1*ka*kc + 10*b1**2*ka**2 + 10*b1*b2*ka**2) + 84*df(x1,t)**2*x1**6*x2**2*x4*a1**7*b1*kc**2*(a1 + 7*a2 - 9*b2) + df
(x1,t)**2*x1**6*x2**2*a1**5*vm*( - 11*a1**3*ka*kc - 84*a1**3*kc**2 + 153*a1**2*a2*ka*kc - 588*a1**2*a2*kc**2 + 10*a1**2*
b1*ka**2 + 126*a1**2*b1*ka*kc + 360*a1*a2**2*ka*kc - 40*a1*a2*b1*ka**2 + 630*a1*a2*b1*ka*kc - 45*a1*b1**2*ka**2 - 45*a1*
b1*b2*ka**2 - 50*a2**2*b1*ka**2 - 150*a2*b1**2*ka**2 - 150*a2*b1*b2*ka**2) + 28*df(x1,t)**2*x1**5*x2**4*a1**7*(2*a1**2*
ka*kc - 45*a1**2*kc**2 + 20*a1*a2*ka*kc + 45*a1*b1*ka*kc - 10*b1**2*ka**2 - 10*b1*b2*ka**2) + 28*df(x1,t)**2*x1**5*x2**3
*x4*a1**7*b1*kc**2*( - 8*a1 - 35*a2 + 45*b2) + 2*df(x1,t)**2*x1**5*x2**3*a1**5*vm*(12*a1**3*ka*kc + 112*a1**3*kc**2 - 
200*a1**2*a2*ka*kc + 490*a1**2*a2*kc**2 - 10*a1**2*b1*ka**2 - 140*a1**2*b1*ka*kc - 240*a1*a2**2*ka*kc + 50*a1*a2*b1*ka**
2 - 420*a1*a2*b1*ka*kc + 40*a1*b1**2*ka**2 + 40*a1*b1*b2*ka**2 + 25*a2**2*b1*ka**2 + 75*a2*b1**2*ka**2 + 75*a2*b1*b2*ka
**2) + 14*df(x1,t)**2*x1**4*x2**5*a1**7*( - 5*a1**2*ka*kc + 90*a1**2*kc**2 - 32*a1*a2*ka*kc - 72*a1*b1*ka*kc + 12*b1**2*
ka**2 + 12*b1*b2*ka**2) + 70*df(x1,t)**2*x1**4*x2**4*x4*a1**7*b1*kc**2*(5*a1 + 14*a2 - 18*b2) + 5*df(x1,t)**2*x1**4*x2**
4*a1**5*vm*( - 5*a1**3*ka*kc - 70*a1**3*kc**2 + 109*a1**2*a2*ka*kc - 196*a1**2*a2*kc**2 + 4*a1**2*b1*ka**2 + 70*a1**2*b1
*ka*kc + 72*a1*a2**2*ka*kc - 22*a1*a2*b1*ka**2 + 126*a1*a2*b1*ka*kc - 15*a1*b1**2*ka**2 - 15*a1*b1*b2*ka**2 - 5*a2**2*b1
*ka**2 - 15*a2*b1**2*ka**2 - 15*a2*b1*b2*ka**2) + 56*df(x1,t)**2*x1**3*x2**6*a1**7*(a1**2*ka*kc - 15*a1**2*kc**2 + 4*a1*
a2*ka*kc + 9*a1*b1*ka*kc - b1**2*ka**2 - b1*b2*ka**2) + 84*df(x1,t)**2*x1**3*x2**5*x4*a1**7*b1*kc**2*( - 4*a1 - 7*a2 + 9
*b2) + df(x1,t)**2*x1**3*x2**5*a1**5*vm*(10*a1**3*ka*kc + 336*a1**3*kc**2 - 414*a1**2*a2*ka*kc + 588*a1**2*a2*kc**2 - 10
*a1**2*b1*ka**2 - 252*a1**2*b1*ka*kc - 144*a1*a2**2*ka*kc + 58*a1*a2*b1*ka**2 - 252*a1*a2*b1*ka*kc + 36*a1*b1**2*ka**2 +
 36*a1*b1*b2*ka**2 + 5*a2**2*b1*ka**2 + 15*a2*b1**2*ka**2 + 15*a2*b1*b2*ka**2) + 4*df(x1,t)**2*x1**2*x2**7*a1**7*( - 7*
a1**2*ka*kc + 90*a1**2*kc**2 - 16*a1*a2*ka*kc - 36*a1*b1*ka*kc + 2*b1**2*ka**2 + 2*b1*b2*ka**2) + 28*df(x1,t)**2*x1**2*
x2**6*x4*a1**7*b1*kc**2*(7*a1 + 7*a2 - 9*b2) + df(x1,t)**2*x1**2*x2**6*a1**6*vm*(3*a1**2*ka*kc - 196*a1**2*kc**2 + 167*
a1*a2*ka*kc - 196*a1*a2*kc**2 + 2*a1*b1*ka**2 + 98*a1*b1*ka*kc + 24*a2**2*ka*kc - 12*a2*b1*ka**2 + 42*a2*b1*ka*kc - 7*b1
**2*ka**2 - 7*b1*b2*ka**2) + 2*df(x1,t)**2*x1*x2**8*a1**8*kc*(4*a1*ka - 45*a1*kc + 4*a2*ka + 9*b1*ka) + 4*df(x1,t)**2*x1
*x2**7*x4*a1**7*b1*kc**2*( - 16*a1 - 7*a2 + 9*b2) + 4*df(x1,t)**2*x1*x2**7*a1**7*kc*vm*( - a1*ka + 16*a1*kc - 7*a2*ka + 
7*a2*kc - 4*b1*ka) + df(x1,t)**2*x2**9*a1**9*kc*( - ka + 10*kc) + 9*df(x1,t)**2*x2**8*x4*a1**8*b1*kc**2 + df(x1,t)**2*x2
**8*a1**8*kc*vm*(ka - 9*kc) + df(x1,t)*x1**10*a1**8*( - a1**2*kc**2 + a1*a2*ka*kc + 2*a1*b1*ka*kc - b1**2*ka**2 - b1*b2*
ka**2) + df(x1,t)*x1**9*x2*a1**8*(10*a1**2*kc**2 - 9*a1*a2*ka*kc - 18*a1*b1*ka*kc + 8*b1**2*ka**2 + 8*b1*b2*ka**2) + df(
x1,t)*x1**9*x4*a1**8*b1*kc**2*(8*a2 - 9*b2) + df(x1,t)*x1**9*a1**6*a2*vm*( - a1**2*ka*kc - 8*a1**2*kc**2 + 11*a1*a2*ka*
kc + a1*b1*ka**2 + 14*a1*b1*ka*kc - 4*a2*b1*ka**2 - 6*b1**2*ka**2 - 6*b1*b2*ka**2) + df(x1,t)*x1**8*x2**2*a1**8*( - 45*
a1**2*kc**2 + 36*a1*a2*ka*kc + 72*a1*b1*ka*kc - 28*b1**2*ka**2 - 28*b1*b2*ka**2) + df(x1,t)*x1**8*x2*x4*a1**8*b1*kc**2*(
 - a1 - 64*a2 + 72*b2) + df(x1,t)*x1**8*x2*a1**6*vm*(a1**3*kc**2 + 3*a1**2*a2*ka*kc + 64*a1**2*a2*kc**2 - 2*a1**2*b1*ka*
kc - 77*a1*a2**2*ka*kc - 4*a1*a2*b1*ka**2 - 98*a1*a2*b1*ka*kc + a1*b1**2*ka**2 + a1*b1*b2*ka**2 + 24*a2**2*b1*ka**2 + 36
*a2*b1**2*ka**2 + 36*a2*b1*b2*ka**2) + 4*df(x1,t)*x1**7*x2**3*a1**8*(30*a1**2*kc**2 - 21*a1*a2*ka*kc - 42*a1*b1*ka*kc + 
14*b1**2*ka**2 + 14*b1*b2*ka**2) + 4*df(x1,t)*x1**7*x2**2*x4*a1**8*b1*kc**2*(2*a1 + 56*a2 - 63*b2) + df(x1,t)*x1**7*x2**
2*a1**6*vm*( - 8*a1**3*kc**2 + 7*a1**2*a2*ka*kc - 224*a1**2*a2*kc**2 + 14*a1**2*b1*ka*kc + 231*a1*a2**2*ka*kc + 3*a1*a2*
b1*ka**2 + 294*a1*a2*b1*ka*kc - 6*a1*b1**2*ka**2 - 6*a1*b1*b2*ka**2 - 60*a2**2*b1*ka**2 - 90*a2*b1**2*ka**2 - 90*a2*b1*
b2*ka**2) + 14*df(x1,t)*x1**6*x2**4*a1**8*( - 15*a1**2*kc**2 + 9*a1*a2*ka*kc + 18*a1*b1*ka*kc - 5*b1**2*ka**2 - 5*b1*b2*
ka**2) + 28*df(x1,t)*x1**6*x2**3*x4*a1**8*b1*kc**2*( - a1 - 16*a2 + 18*b2) + df(x1,t)*x1**6*x2**3*a1**6*vm*(28*a1**3*kc
**2 - 49*a1**2*a2*ka*kc + 448*a1**2*a2*kc**2 - 42*a1**2*b1*ka*kc - 385*a1*a2**2*ka*kc + 10*a1*a2*b1*ka**2 - 490*a1*a2*b1
*ka*kc + 15*a1*b1**2*ka**2 + 15*a1*b1*b2*ka**2 + 80*a2**2*b1*ka**2 + 120*a2*b1**2*ka**2 + 120*a2*b1*b2*ka**2) + 14*df(x1
,t)*x1**5*x2**5*a1**8*(18*a1**2*kc**2 - 9*a1*a2*ka*kc - 18*a1*b1*ka*kc + 4*b1**2*ka**2 + 4*b1*b2*ka**2) + 14*df(x1,t)*x1
**5*x2**4*x4*a1**8*b1*kc**2*(4*a1 + 40*a2 - 45*b2) + df(x1,t)*x1**5*x2**4*a1**6*vm*( - 56*a1**3*kc**2 + 105*a1**2*a2*ka*
kc - 560*a1**2*a2*kc**2 + 70*a1**2*b1*ka*kc + 385*a1*a2**2*ka*kc - 25*a1*a2*b1*ka**2 + 490*a1*a2*b1*ka*kc - 20*a1*b1**2*
ka**2 - 20*a1*b1*b2*ka**2 - 60*a2**2*b1*ka**2 - 90*a2*b1**2*ka**2 - 90*a2*b1*b2*ka**2) + 14*df(x1,t)*x1**4*x2**6*a1**8*(
 - 15*a1**2*kc**2 + 6*a1*a2*ka*kc + 12*a1*b1*ka*kc - 2*b1**2*ka**2 - 2*b1*b2*ka**2) + 14*df(x1,t)*x1**4*x2**5*x4*a1**8*
b1*kc**2*( - 5*a1 - 32*a2 + 36*b2) + df(x1,t)*x1**4*x2**5*a1**6*vm*(70*a1**3*kc**2 - 119*a1**2*a2*ka*kc + 448*a1**2*a2*
kc**2 - 70*a1**2*b1*ka*kc - 231*a1*a2**2*ka*kc + 24*a1*a2*b1*ka**2 - 294*a1*a2*b1*ka*kc + 15*a1*b1**2*ka**2 + 15*a1*b1*
b2*ka**2 + 24*a2**2*b1*ka**2 + 36*a2*b1**2*ka**2 + 36*a2*b1*b2*ka**2) + 4*df(x1,t)*x1**3*x2**7*a1**8*(30*a1**2*kc**2 - 9
*a1*a2*ka*kc - 18*a1*b1*ka*kc + 2*b1**2*ka**2 + 2*b1*b2*ka**2) + 28*df(x1,t)*x1**3*x2**6*x4*a1**8*b1*kc**2*(2*a1 + 8*a2 
- 9*b2) + df(x1,t)*x1**3*x2**6*a1**6*vm*( - 56*a1**3*kc**2 + 77*a1**2*a2*ka*kc - 224*a1**2*a2*kc**2 + 42*a1**2*b1*ka*kc 
+ 77*a1*a2**2*ka*kc - 11*a1*a2*b1*ka**2 + 98*a1*a2*b1*ka*kc - 6*a1*b1**2*ka**2 - 6*a1*b1*b2*ka**2 - 4*a2**2*b1*ka**2 - 6
*a2*b1**2*ka**2 - 6*a2*b1*b2*ka**2) + df(x1,t)*x1**2*x2**8*a1**8*( - 45*a1**2*kc**2 + 9*a1*a2*ka*kc + 18*a1*b1*ka*kc - 
b1**2*ka**2 - b1*b2*ka**2) + 4*df(x1,t)*x1**2*x2**7*x4*a1**8*b1*kc**2*( - 7*a1 - 16*a2 + 18*b2) + df(x1,t)*x1**2*x2**7*
a1**7*vm*(28*a1**2*kc**2 - 27*a1*a2*ka*kc + 64*a1*a2*kc**2 - 14*a1*b1*ka*kc - 11*a2**2*ka*kc + 2*a2*b1*ka**2 - 14*a2*b1*
ka*kc + b1**2*ka**2 + b1*b2*ka**2) + df(x1,t)*x1*x2**9*a1**9*kc*(10*a1*kc - a2*ka - 2*b1*ka) + df(x1,t)*x1*x2**8*x4*a1**
8*b1*kc**2*(8*a1 + 8*a2 - 9*b2) + 2*df(x1,t)*x1*x2**8*a1**8*kc*vm*( - 4*a1*kc + 2*a2*ka - 4*a2*kc + b1*ka) - df(x1,t)*x2
**10*a1**10*kc**2 - df(x1,t)*x2**9*x4*a1**9*b1*kc**2 + df(x1,t)*x2**9*a1**9*kc**2*vm + x1**10*x4*a1**9*b1*kc**2*(a2 - b2
) + x1**10*a1**7*a2*vm*( - a1**2*kc**2 + 2*a1*a2*ka*kc + 2*a1*b1*ka*kc - a2*b1*ka**2 - b1**2*ka**2 - b1*b2*ka**2) + 9*x1
**9*x2*x4*a1**9*b1*kc**2*( - a2 + b2) + x1**9*x2*a1**7*a2*vm*(9*a1**2*kc**2 - 16*a1*a2*ka*kc - 16*a1*b1*ka*kc + 7*a2*b1*
ka**2 + 7*b1**2*ka**2 + 7*b1*b2*ka**2) + 36*x1**8*x2**2*x4*a1**9*b1*kc**2*(a2 - b2) + x1**8*x2**2*a1**7*a2*vm*( - 36*a1
**2*kc**2 + 56*a1*a2*ka*kc + 56*a1*b1*ka*kc - 21*a2*b1*ka**2 - 21*b1**2*ka**2 - 21*b1*b2*ka**2) + 84*x1**7*x2**3*x4*a1**
9*b1*kc**2*( - a2 + b2) + 7*x1**7*x2**3*a1**7*a2*vm*(12*a1**2*kc**2 - 16*a1*a2*ka*kc - 16*a1*b1*ka*kc + 5*a2*b1*ka**2 + 
5*b1**2*ka**2 + 5*b1*b2*ka**2) + 126*x1**6*x2**4*x4*a1**9*b1*kc**2*(a2 - b2) + 7*x1**6*x2**4*a1**7*a2*vm*( - 18*a1**2*kc
**2 + 20*a1*a2*ka*kc + 20*a1*b1*ka*kc - 5*a2*b1*ka**2 - 5*b1**2*ka**2 - 5*b1*b2*ka**2) + 126*x1**5*x2**5*x4*a1**9*b1*kc
**2*( - a2 + b2) + 7*x1**5*x2**5*a1**7*a2*vm*(18*a1**2*kc**2 - 16*a1*a2*ka*kc - 16*a1*b1*ka*kc + 3*a2*b1*ka**2 + 3*b1**2
*ka**2 + 3*b1*b2*ka**2) + 84*x1**4*x2**6*x4*a1**9*b1*kc**2*(a2 - b2) + 7*x1**4*x2**6*a1**7*a2*vm*( - 12*a1**2*kc**2 + 8*
a1*a2*ka*kc + 8*a1*b1*ka*kc - a2*b1*ka**2 - b1**2*ka**2 - b1*b2*ka**2) + 36*x1**3*x2**7*x4*a1**9*b1*kc**2*( - a2 + b2) +
 x1**3*x2**7*a1**7*a2*vm*(36*a1**2*kc**2 - 16*a1*a2*ka*kc - 16*a1*b1*ka*kc + a2*b1*ka**2 + b1**2*ka**2 + b1*b2*ka**2) + 
9*x1**2*x2**8*x4*a1**9*b1*kc**2*(a2 - b2) + x1**2*x2**8*a1**8*a2*kc*vm*( - 9*a1*kc + 2*a2*ka + 2*b1*ka) + x1*x2**9*x4*a1
**9*b1*kc**2*( - a2 + b2) + x1*x2**9*a1**9*a2*kc**2*vm$

aa_(5) := df(x1,t) + x1*xi1*ka*vm + x1*a1 - x2*a1$

aa_(6) :=  - x1 + y1$

aa_(7) :=  - df(x1,t,3)*df(x1,t)**7*x1**2*ka*kc*vm + df(x1,t,3)*df(x1,t)**6*x1**3*ka*vm*( - 7*a1*kc + b1*ka) + 7*df(x1,t
,3)*df(x1,t)**6*x1**2*x2*a1*ka*kc*vm + 3*df(x1,t,3)*df(x1,t)**5*x1**4*a1*ka*vm*( - 7*a1*kc + 2*b1*ka) + 6*df(x1,t,3)*df(
x1,t)**5*x1**3*x2*a1*ka*vm*(7*a1*kc - b1*ka) - 21*df(x1,t,3)*df(x1,t)**5*x1**2*x2**2*a1**2*ka*kc*vm + 5*df(x1,t,3)*df(x1
,t)**4*x1**5*a1**2*ka*vm*( - 7*a1*kc + 3*b1*ka) + 15*df(x1,t,3)*df(x1,t)**4*x1**4*x2*a1**2*ka*vm*(7*a1*kc - 2*b1*ka) + 
15*df(x1,t,3)*df(x1,t)**4*x1**3*x2**2*a1**2*ka*vm*( - 7*a1*kc + b1*ka) + 35*df(x1,t,3)*df(x1,t)**4*x1**2*x2**3*a1**3*ka*
kc*vm + 5*df(x1,t,3)*df(x1,t)**3*x1**6*a1**3*ka*vm*( - 7*a1*kc + 4*b1*ka) + 20*df(x1,t,3)*df(x1,t)**3*x1**5*x2*a1**3*ka*
vm*(7*a1*kc - 3*b1*ka) + 30*df(x1,t,3)*df(x1,t)**3*x1**4*x2**2*a1**3*ka*vm*( - 7*a1*kc + 2*b1*ka) + 20*df(x1,t,3)*df(x1,
t)**3*x1**3*x2**3*a1**3*ka*vm*(7*a1*kc - b1*ka) - 35*df(x1,t,3)*df(x1,t)**3*x1**2*x2**4*a1**4*ka*kc*vm + 3*df(x1,t,3)*df
(x1,t)**2*x1**7*a1**4*ka*vm*( - 7*a1*kc + 5*b1*ka) + 15*df(x1,t,3)*df(x1,t)**2*x1**6*x2*a1**4*ka*vm*(7*a1*kc - 4*b1*ka) 
+ 30*df(x1,t,3)*df(x1,t)**2*x1**5*x2**2*a1**4*ka*vm*( - 7*a1*kc + 3*b1*ka) + 30*df(x1,t,3)*df(x1,t)**2*x1**4*x2**3*a1**4
*ka*vm*(7*a1*kc - 2*b1*ka) + 15*df(x1,t,3)*df(x1,t)**2*x1**3*x2**4*a1**4*ka*vm*( - 7*a1*kc + b1*ka) + 21*df(x1,t,3)*df(
x1,t)**2*x1**2*x2**5*a1**5*ka*kc*vm + df(x1,t,3)*df(x1,t)*x1**8*a1**5*ka*vm*( - 7*a1*kc + 6*b1*ka) + 6*df(x1,t,3)*df(x1,
t)*x1**7*x2*a1**5*ka*vm*(7*a1*kc - 5*b1*ka) + 15*df(x1,t,3)*df(x1,t)*x1**6*x2**2*a1**5*ka*vm*( - 7*a1*kc + 4*b1*ka) + 20
*df(x1,t,3)*df(x1,t)*x1**5*x2**3*a1**5*ka*vm*(7*a1*kc - 3*b1*ka) + 15*df(x1,t,3)*df(x1,t)*x1**4*x2**4*a1**5*ka*vm*( - 7*
a1*kc + 2*b1*ka) + 6*df(x1,t,3)*df(x1,t)*x1**3*x2**5*a1**5*ka*vm*(7*a1*kc - b1*ka) - 7*df(x1,t,3)*df(x1,t)*x1**2*x2**6*
a1**6*ka*kc*vm + df(x1,t,3)*x1**9*a1**6*ka*vm*( - a1*kc + b1*ka) + df(x1,t,3)*x1**8*x2*a1**6*ka*vm*(7*a1*kc - 6*b1*ka) +
 3*df(x1,t,3)*x1**7*x2**2*a1**6*ka*vm*( - 7*a1*kc + 5*b1*ka) + 5*df(x1,t,3)*x1**6*x2**3*a1**6*ka*vm*(7*a1*kc - 4*b1*ka) 
+ 5*df(x1,t,3)*x1**5*x2**4*a1**6*ka*vm*( - 7*a1*kc + 3*b1*ka) + 3*df(x1,t,3)*x1**4*x2**5*a1**6*ka*vm*(7*a1*kc - 2*b1*ka)
 + df(x1,t,3)*x1**3*x2**6*a1**6*ka*vm*( - 7*a1*kc + b1*ka) + df(x1,t,3)*x1**2*x2**7*a1**7*ka*kc*vm + 3*df(x1,t,2)**2*df(
x1,t)**6*x1**2*ka*kc*vm + 2*df(x1,t,2)**2*df(x1,t)**5*x1**3*ka*vm*(9*a1*kc - b1*ka) - 18*df(x1,t,2)**2*df(x1,t)**5*x1**2
*x2*a1*ka*kc*vm + 5*df(x1,t,2)**2*df(x1,t)**4*x1**4*a1*ka*vm*(9*a1*kc - 2*b1*ka) + 10*df(x1,t,2)**2*df(x1,t)**4*x1**3*x2
*a1*ka*vm*( - 9*a1*kc + b1*ka) + 45*df(x1,t,2)**2*df(x1,t)**4*x1**2*x2**2*a1**2*ka*kc*vm + 20*df(x1,t,2)**2*df(x1,t)**3*
x1**5*a1**2*ka*vm*(3*a1*kc - b1*ka) + 20*df(x1,t,2)**2*df(x1,t)**3*x1**4*x2*a1**2*ka*vm*( - 9*a1*kc + 2*b1*ka) + 20*df(
x1,t,2)**2*df(x1,t)**3*x1**3*x2**2*a1**2*ka*vm*(9*a1*kc - b1*ka) - 60*df(x1,t,2)**2*df(x1,t)**3*x1**2*x2**3*a1**3*ka*kc*
vm + 5*df(x1,t,2)**2*df(x1,t)**2*x1**6*a1**3*ka*vm*(9*a1*kc - 4*b1*ka) + 60*df(x1,t,2)**2*df(x1,t)**2*x1**5*x2*a1**3*ka*
vm*( - 3*a1*kc + b1*ka) + 30*df(x1,t,2)**2*df(x1,t)**2*x1**4*x2**2*a1**3*ka*vm*(9*a1*kc - 2*b1*ka) + 20*df(x1,t,2)**2*df
(x1,t)**2*x1**3*x2**3*a1**3*ka*vm*( - 9*a1*kc + b1*ka) + 45*df(x1,t,2)**2*df(x1,t)**2*x1**2*x2**4*a1**4*ka*kc*vm + 2*df(
x1,t,2)**2*df(x1,t)*x1**7*a1**4*ka*vm*(9*a1*kc - 5*b1*ka) + 10*df(x1,t,2)**2*df(x1,t)*x1**6*x2*a1**4*ka*vm*( - 9*a1*kc +
 4*b1*ka) + 60*df(x1,t,2)**2*df(x1,t)*x1**5*x2**2*a1**4*ka*vm*(3*a1*kc - b1*ka) + 20*df(x1,t,2)**2*df(x1,t)*x1**4*x2**3*
a1**4*ka*vm*( - 9*a1*kc + 2*b1*ka) + 10*df(x1,t,2)**2*df(x1,t)*x1**3*x2**4*a1**4*ka*vm*(9*a1*kc - b1*ka) - 18*df(x1,t,2)
**2*df(x1,t)*x1**2*x2**5*a1**5*ka*kc*vm + df(x1,t,2)**2*x1**8*a1**5*ka*vm*(3*a1*kc - 2*b1*ka) + 2*df(x1,t,2)**2*x1**7*x2
*a1**5*ka*vm*( - 9*a1*kc + 5*b1*ka) + 5*df(x1,t,2)**2*x1**6*x2**2*a1**5*ka*vm*(9*a1*kc - 4*b1*ka) + 20*df(x1,t,2)**2*x1
**5*x2**3*a1**5*ka*vm*( - 3*a1*kc + b1*ka) + 5*df(x1,t,2)**2*x1**4*x2**4*a1**5*ka*vm*(9*a1*kc - 2*b1*ka) + 2*df(x1,t,2)
**2*x1**3*x2**5*a1**5*ka*vm*( - 9*a1*kc + b1*ka) + 3*df(x1,t,2)**2*x1**2*x2**6*a1**6*ka*kc*vm + df(x1,t,2)*df(x1,t)**8*
x1**2*ka*(a1*kc - b1*ka) - df(x1,t,2)*df(x1,t)**8*x1*x2*a1*ka*kc - df(x1,t,2)*df(x1,t)**8*x1*y2*b1*kc**2 + df(x1,t,2)*df
(x1,t)**8*x1*kc*vm*( - 3*ka + kc) + 8*df(x1,t,2)*df(x1,t)**7*x1**3*a1*ka*(a1*kc - b1*ka) + 8*df(x1,t,2)*df(x1,t)**7*x1**
2*x2*a1*ka*( - 2*a1*kc + b1*ka) - 8*df(x1,t,2)*df(x1,t)**7*x1**2*y2*a1*b1*kc**2 + df(x1,t,2)*df(x1,t)**7*x1**2*vm*( - 15
*a1*ka*kc + 8*a1*kc**2 + b1*ka**2 - 2*b1*ka*kc) + 8*df(x1,t,2)*df(x1,t)**7*x1*x2**2*a1**2*ka*kc + 8*df(x1,t,2)*df(x1,t)
**7*x1*x2*y2*a1*b1*kc**2 + 4*df(x1,t,2)*df(x1,t)**7*x1*x2*a1*kc*vm*(5*ka - 2*kc) + 28*df(x1,t,2)*df(x1,t)**6*x1**4*a1**2
*ka*(a1*kc - b1*ka) + 28*df(x1,t,2)*df(x1,t)**6*x1**3*x2*a1**2*ka*( - 3*a1*kc + 2*b1*ka) - 28*df(x1,t,2)*df(x1,t)**6*x1
**3*y2*a1**2*b1*kc**2 + df(x1,t,2)*df(x1,t)**6*x1**3*vm*( - 27*a1**2*ka*kc + 28*a1**2*kc**2 - 6*a1*a2*ka*kc + 2*a1*b1*ka
**2 - 14*a1*b1*ka*kc + b1**2*ka**2 + b1*b2*ka**2) + 28*df(x1,t,2)*df(x1,t)**6*x1**2*x2**2*a1**2*ka*(3*a1*kc - b1*ka) + 
56*df(x1,t,2)*df(x1,t)**6*x1**2*x2*y2*a1**2*b1*kc**2 + df(x1,t,2)*df(x1,t)**6*x1**2*x2*a1*vm*(83*a1*ka*kc - 56*a1*kc**2 
+ 6*a2*ka*kc - 5*b1*ka**2 + 14*b1*ka*kc) - 28*df(x1,t,2)*df(x1,t)**6*x1*x2**3*a1**3*ka*kc - 28*df(x1,t,2)*df(x1,t)**6*x1
*x2**2*y2*a1**2*b1*kc**2 + 28*df(x1,t,2)*df(x1,t)**6*x1*x2**2*a1**2*kc*vm*( - 2*ka + kc) + 56*df(x1,t,2)*df(x1,t)**5*x1
**5*a1**3*ka*(a1*kc - b1*ka) + 56*df(x1,t,2)*df(x1,t)**5*x1**4*x2*a1**3*ka*( - 4*a1*kc + 3*b1*ka) - 56*df(x1,t,2)*df(x1,
t)**5*x1**4*y2*a1**3*b1*kc**2 + df(x1,t,2)*df(x1,t)**5*x1**4*a1*vm*( - 15*a1**2*ka*kc + 56*a1**2*kc**2 - 36*a1*a2*ka*kc 
- 5*a1*b1*ka**2 - 42*a1*b1*ka*kc + 4*a2*b1*ka**2 + 6*b1**2*ka**2 + 6*b1*b2*ka**2) + 168*df(x1,t,2)*df(x1,t)**5*x1**3*x2
**2*a1**3*ka*(2*a1*kc - b1*ka) + 168*df(x1,t,2)*df(x1,t)**5*x1**3*x2*y2*a1**3*b1*kc**2 + 2*df(x1,t,2)*df(x1,t)**5*x1**3*
x2*a1*vm*(57*a1**2*ka*kc - 84*a1**2*kc**2 + 36*a1*a2*ka*kc - 2*a1*b1*ka**2 + 42*a1*b1*ka*kc - 2*a2*b1*ka**2 - 3*b1**2*ka
**2 - 3*b1*b2*ka**2) + 56*df(x1,t,2)*df(x1,t)**5*x1**2*x2**3*a1**3*ka*( - 4*a1*kc + b1*ka) - 168*df(x1,t,2)*df(x1,t)**5*
x1**2*x2**2*y2*a1**3*b1*kc**2 + 3*df(x1,t,2)*df(x1,t)**5*x1**2*x2**2*a1**2*vm*( - 61*a1*ka*kc + 56*a1*kc**2 - 12*a2*ka*
kc + 3*b1*ka**2 - 14*b1*ka*kc) + 56*df(x1,t,2)*df(x1,t)**5*x1*x2**4*a1**4*ka*kc + 56*df(x1,t,2)*df(x1,t)**5*x1*x2**3*y2*
a1**3*b1*kc**2 + 28*df(x1,t,2)*df(x1,t)**5*x1*x2**3*a1**3*kc*vm*(3*ka - 2*kc) + 70*df(x1,t,2)*df(x1,t)**4*x1**6*a1**4*ka
*(a1*kc - b1*ka) + 70*df(x1,t,2)*df(x1,t)**4*x1**5*x2*a1**4*ka*( - 5*a1*kc + 4*b1*ka) - 70*df(x1,t,2)*df(x1,t)**4*x1**5*
y2*a1**4*b1*kc**2 + 5*df(x1,t,2)*df(x1,t)**4*x1**5*a1**2*vm*(3*a1**2*ka*kc + 14*a1**2*kc**2 - 18*a1*a2*ka*kc - 4*a1*b1*
ka**2 - 14*a1*b1*ka*kc + 4*a2*b1*ka**2 + 3*b1**2*ka**2 + 3*b1*b2*ka**2) + 140*df(x1,t,2)*df(x1,t)**4*x1**4*x2**2*a1**4*
ka*(5*a1*kc - 3*b1*ka) + 280*df(x1,t,2)*df(x1,t)**4*x1**4*x2*y2*a1**4*b1*kc**2 + 5*df(x1,t,2)*df(x1,t)**4*x1**4*x2*a1**2
*vm*(5*a1**2*ka*kc - 56*a1**2*kc**2 + 54*a1*a2*ka*kc + 7*a1*b1*ka**2 + 42*a1*b1*ka*kc - 8*a2*b1*ka**2 - 6*b1**2*ka**2 - 
6*b1*b2*ka**2) + 140*df(x1,t,2)*df(x1,t)**4*x1**3*x2**3*a1**4*ka*( - 5*a1*kc + 2*b1*ka) - 420*df(x1,t,2)*df(x1,t)**4*x1
**3*x2**2*y2*a1**4*b1*kc**2 + 5*df(x1,t,2)*df(x1,t)**4*x1**3*x2**2*a1**2*vm*( - 33*a1**2*ka*kc + 84*a1**2*kc**2 - 54*a1*
a2*ka*kc - 2*a1*b1*ka**2 - 42*a1*b1*ka*kc + 4*a2*b1*ka**2 + 3*b1**2*ka**2 + 3*b1*b2*ka**2) + 70*df(x1,t,2)*df(x1,t)**4*
x1**2*x2**4*a1**4*ka*(5*a1*kc - b1*ka) + 280*df(x1,t,2)*df(x1,t)**4*x1**2*x2**3*y2*a1**4*b1*kc**2 + 5*df(x1,t,2)*df(x1,t
)**4*x1**2*x2**3*a1**3*vm*(39*a1*ka*kc - 56*a1*kc**2 + 18*a2*ka*kc - b1*ka**2 + 14*b1*ka*kc) - 70*df(x1,t,2)*df(x1,t)**4
*x1*x2**5*a1**5*ka*kc - 70*df(x1,t,2)*df(x1,t)**4*x1*x2**4*y2*a1**4*b1*kc**2 + 70*df(x1,t,2)*df(x1,t)**4*x1*x2**4*a1**4*
kc*vm*( - ka + kc) + 56*df(x1,t,2)*df(x1,t)**3*x1**7*a1**5*ka*(a1*kc - b1*ka) + 56*df(x1,t,2)*df(x1,t)**3*x1**6*x2*a1**5
*ka*( - 6*a1*kc + 5*b1*ka) - 56*df(x1,t,2)*df(x1,t)**3*x1**6*y2*a1**5*b1*kc**2 + df(x1,t,2)*df(x1,t)**3*x1**6*a1**3*vm*(
27*a1**2*ka*kc + 56*a1**2*kc**2 - 120*a1*a2*ka*kc - 25*a1*b1*ka**2 - 70*a1*b1*ka*kc + 40*a2*b1*ka**2 + 20*b1**2*ka**2 + 
20*b1*b2*ka**2) + 280*df(x1,t,2)*df(x1,t)**3*x1**5*x2**2*a1**5*ka*(3*a1*kc - 2*b1*ka) + 280*df(x1,t,2)*df(x1,t)**3*x1**5
*x2*y2*a1**5*b1*kc**2 + 20*df(x1,t,2)*df(x1,t)**3*x1**5*x2*a1**3*vm*( - 4*a1**2*ka*kc - 14*a1**2*kc**2 + 24*a1*a2*ka*kc 
+ 4*a1*b1*ka**2 + 14*a1*b1*ka*kc - 6*a2*b1*ka**2 - 3*b1**2*ka**2 - 3*b1*b2*ka**2) + 560*df(x1,t,2)*df(x1,t)**3*x1**4*x2
**3*a1**5*ka*( - 2*a1*kc + b1*ka) - 560*df(x1,t,2)*df(x1,t)**3*x1**4*x2**2*y2*a1**5*b1*kc**2 + 10*df(x1,t,2)*df(x1,t)**3
*x1**4*x2**2*a1**3*vm*(5*a1**2*ka*kc + 56*a1**2*kc**2 - 72*a1*a2*ka*kc - 9*a1*b1*ka**2 - 42*a1*b1*ka*kc + 12*a2*b1*ka**2
 + 6*b1**2*ka**2 + 6*b1*b2*ka**2) + 280*df(x1,t,2)*df(x1,t)**3*x1**3*x2**4*a1**5*ka*(3*a1*kc - b1*ka) + 560*df(x1,t,2)*
df(x1,t)**3*x1**3*x2**3*y2*a1**5*b1*kc**2 + 20*df(x1,t,2)*df(x1,t)**3*x1**3*x2**3*a1**3*vm*(3*a1**2*ka*kc - 28*a1**2*kc
**2 + 24*a1*a2*ka*kc + 2*a1*b1*ka**2 + 14*a1*b1*ka*kc - 2*a2*b1*ka**2 - b1**2*ka**2 - b1*b2*ka**2) + 56*df(x1,t,2)*df(x1
,t)**3*x1**2*x2**5*a1**5*ka*( - 6*a1*kc + b1*ka) - 280*df(x1,t,2)*df(x1,t)**3*x1**2*x2**4*y2*a1**5*b1*kc**2 + 5*df(x1,t,
2)*df(x1,t)**3*x1**2*x2**4*a1**4*vm*( - 17*a1*ka*kc + 56*a1*kc**2 - 24*a2*ka*kc - b1*ka**2 - 14*b1*ka*kc) + 56*df(x1,t,2
)*df(x1,t)**3*x1*x2**6*a1**6*ka*kc + 56*df(x1,t,2)*df(x1,t)**3*x1*x2**5*y2*a1**5*b1*kc**2 + 28*df(x1,t,2)*df(x1,t)**3*x1
*x2**5*a1**5*kc*vm*(ka - 2*kc) + 28*df(x1,t,2)*df(x1,t)**2*x1**8*a1**6*ka*(a1*kc - b1*ka) + 28*df(x1,t,2)*df(x1,t)**2*x1
**7*x2*a1**6*ka*( - 7*a1*kc + 6*b1*ka) - 28*df(x1,t,2)*df(x1,t)**2*x1**7*y2*a1**6*b1*kc**2 + df(x1,t,2)*df(x1,t)**2*x1**
7*a1**4*vm*(15*a1**2*ka*kc + 28*a1**2*kc**2 - 90*a1*a2*ka*kc - 14*a1*b1*ka**2 - 42*a1*b1*ka*kc + 40*a2*b1*ka**2 + 15*b1
**2*ka**2 + 15*b1*b2*ka**2) + 84*df(x1,t,2)*df(x1,t)**2*x1**6*x2**2*a1**6*ka*(7*a1*kc - 5*b1*ka) + 168*df(x1,t,2)*df(x1,
t)**2*x1**6*x2*y2*a1**6*b1*kc**2 + df(x1,t,2)*df(x1,t)**2*x1**6*x2*a1**4*vm*( - 75*a1**2*ka*kc - 168*a1**2*kc**2 + 450*
a1*a2*ka*kc + 65*a1*b1*ka**2 + 210*a1*b1*ka*kc - 160*a2*b1*ka**2 - 60*b1**2*ka**2 - 60*b1*b2*ka**2) + 140*df(x1,t,2)*df(
x1,t)**2*x1**5*x2**3*a1**6*ka*( - 7*a1*kc + 4*b1*ka) - 420*df(x1,t,2)*df(x1,t)**2*x1**5*x2**2*y2*a1**6*b1*kc**2 + 30*df(
x1,t,2)*df(x1,t)**2*x1**5*x2**2*a1**4*vm*(5*a1**2*ka*kc + 14*a1**2*kc**2 - 30*a1*a2*ka*kc - 4*a1*b1*ka**2 - 14*a1*b1*ka*
kc + 8*a2*b1*ka**2 + 3*b1**2*ka**2 + 3*b1*b2*ka**2) + 140*df(x1,t,2)*df(x1,t)**2*x1**4*x2**4*a1**6*ka*(7*a1*kc - 3*b1*ka
) + 560*df(x1,t,2)*df(x1,t)**2*x1**4*x2**3*y2*a1**6*b1*kc**2 + 10*df(x1,t,2)*df(x1,t)**2*x1**4*x2**3*a1**4*vm*( - 15*a1
**2*ka*kc - 56*a1**2*kc**2 + 90*a1*a2*ka*kc + 11*a1*b1*ka**2 + 42*a1*b1*ka*kc - 16*a2*b1*ka**2 - 6*b1**2*ka**2 - 6*b1*b2
*ka**2) + 84*df(x1,t,2)*df(x1,t)**2*x1**3*x2**5*a1**6*ka*( - 7*a1*kc + 2*b1*ka) - 420*df(x1,t,2)*df(x1,t)**2*x1**3*x2**4
*y2*a1**6*b1*kc**2 + 5*df(x1,t,2)*df(x1,t)**2*x1**3*x2**4*a1**4*vm*(15*a1**2*ka*kc + 84*a1**2*kc**2 - 90*a1*a2*ka*kc - 
10*a1*b1*ka**2 - 42*a1*b1*ka*kc + 8*a2*b1*ka**2 + 3*b1**2*ka**2 + 3*b1*b2*ka**2) + 28*df(x1,t,2)*df(x1,t)**2*x1**2*x2**6
*a1**6*ka*(7*a1*kc - b1*ka) + 168*df(x1,t,2)*df(x1,t)**2*x1**2*x2**5*y2*a1**6*b1*kc**2 + 3*df(x1,t,2)*df(x1,t)**2*x1**2*
x2**5*a1**5*vm*( - 5*a1*ka*kc - 56*a1*kc**2 + 30*a2*ka*kc + 3*b1*ka**2 + 14*b1*ka*kc) - 28*df(x1,t,2)*df(x1,t)**2*x1*x2
**7*a1**7*ka*kc - 28*df(x1,t,2)*df(x1,t)**2*x1*x2**6*y2*a1**6*b1*kc**2 + 28*df(x1,t,2)*df(x1,t)**2*x1*x2**6*a1**6*kc**2*
vm + 8*df(x1,t,2)*df(x1,t)*x1**9*a1**7*ka*(a1*kc - b1*ka) + 8*df(x1,t,2)*df(x1,t)*x1**8*x2*a1**7*ka*( - 8*a1*kc + 7*b1*
ka) - 8*df(x1,t,2)*df(x1,t)*x1**8*y2*a1**7*b1*kc**2 + df(x1,t,2)*df(x1,t)*x1**8*a1**5*vm*(3*a1**2*ka*kc + 8*a1**2*kc**2 
- 36*a1*a2*ka*kc - 3*a1*b1*ka**2 - 14*a1*b1*ka*kc + 20*a2*b1*ka**2 + 6*b1**2*ka**2 + 6*b1*b2*ka**2) + 56*df(x1,t,2)*df(
x1,t)*x1**7*x2**2*a1**7*ka*(4*a1*kc - 3*b1*ka) + 56*df(x1,t,2)*df(x1,t)*x1**7*x2*y2*a1**7*b1*kc**2 + 2*df(x1,t,2)*df(x1,
t)*x1**7*x2*a1**5*vm*( - 11*a1**2*ka*kc - 28*a1**2*kc**2 + 108*a1*a2*ka*kc + 10*a1*b1*ka**2 + 42*a1*b1*ka*kc - 50*a2*b1*
ka**2 - 15*b1**2*ka**2 - 15*b1*b2*ka**2) + 56*df(x1,t,2)*df(x1,t)*x1**6*x2**3*a1**7*ka*( - 8*a1*kc + 5*b1*ka) - 168*df(
x1,t,2)*df(x1,t)*x1**6*x2**2*y2*a1**7*b1*kc**2 + df(x1,t,2)*df(x1,t)*x1**6*x2**2*a1**5*vm*(69*a1**2*ka*kc + 168*a1**2*kc
**2 - 540*a1*a2*ka*kc - 55*a1*b1*ka**2 - 210*a1*b1*ka*kc + 200*a2*b1*ka**2 + 60*b1**2*ka**2 + 60*b1*b2*ka**2) + 280*df(
x1,t,2)*df(x1,t)*x1**5*x2**4*a1**7*ka*(2*a1*kc - b1*ka) + 280*df(x1,t,2)*df(x1,t)*x1**5*x2**3*y2*a1**7*b1*kc**2 + 20*df(
x1,t,2)*df(x1,t)*x1**5*x2**3*a1**5*vm*( - 6*a1**2*ka*kc - 14*a1**2*kc**2 + 36*a1*a2*ka*kc + 4*a1*b1*ka**2 + 14*a1*b1*ka*
kc - 10*a2*b1*ka**2 - 3*b1**2*ka**2 - 3*b1*b2*ka**2) + 56*df(x1,t,2)*df(x1,t)*x1**4*x2**5*a1**7*ka*( - 8*a1*kc + 3*b1*ka
) - 280*df(x1,t,2)*df(x1,t)*x1**4*x2**4*y2*a1**7*b1*kc**2 + 5*df(x1,t,2)*df(x1,t)*x1**4*x2**4*a1**5*vm*(25*a1**2*ka*kc +
 56*a1**2*kc**2 - 108*a1*a2*ka*kc - 13*a1*b1*ka**2 - 42*a1*b1*ka*kc + 20*a2*b1*ka**2 + 6*b1**2*ka**2 + 6*b1*b2*ka**2) + 
56*df(x1,t,2)*df(x1,t)*x1**3*x2**6*a1**7*ka*(4*a1*kc - b1*ka) + 168*df(x1,t,2)*df(x1,t)*x1**3*x2**5*y2*a1**7*b1*kc**2 + 
2*df(x1,t,2)*df(x1,t)*x1**3*x2**5*a1**5*vm*( - 39*a1**2*ka*kc - 84*a1**2*kc**2 + 108*a1*a2*ka*kc + 14*a1*b1*ka**2 + 42*
a1*b1*ka*kc - 10*a2*b1*ka**2 - 3*b1**2*ka**2 - 3*b1*b2*ka**2) + 8*df(x1,t,2)*df(x1,t)*x1**2*x2**7*a1**7*ka*( - 8*a1*kc +
 b1*ka) - 56*df(x1,t,2)*df(x1,t)*x1**2*x2**6*y2*a1**7*b1*kc**2 + df(x1,t,2)*df(x1,t)*x1**2*x2**6*a1**6*vm*(27*a1*ka*kc +
 56*a1*kc**2 - 36*a2*ka*kc - 5*b1*ka**2 - 14*b1*ka*kc) + 8*df(x1,t,2)*df(x1,t)*x1*x2**8*a1**8*ka*kc + 8*df(x1,t,2)*df(x1
,t)*x1*x2**7*y2*a1**7*b1*kc**2 + 4*df(x1,t,2)*df(x1,t)*x1*x2**7*a1**7*kc*vm*( - ka - 2*kc) + df(x1,t,2)*x1**10*a1**8*ka*
(a1*kc - b1*ka) + df(x1,t,2)*x1**9*x2*a1**8*ka*( - 9*a1*kc + 8*b1*ka) - df(x1,t,2)*x1**9*y2*a1**8*b1*kc**2 + df(x1,t,2)*
x1**9*a1**6*vm*(a1**2*kc**2 - 6*a1*a2*ka*kc - 2*a1*b1*ka*kc + 4*a2*b1*ka**2 + b1**2*ka**2 + b1*b2*ka**2) + 4*df(x1,t,2)*
x1**8*x2**2*a1**8*ka*(9*a1*kc - 7*b1*ka) + 8*df(x1,t,2)*x1**8*x2*y2*a1**8*b1*kc**2 + df(x1,t,2)*x1**8*x2*a1**6*vm*( - a1
**2*ka*kc - 8*a1**2*kc**2 + 42*a1*a2*ka*kc + a1*b1*ka**2 + 14*a1*b1*ka*kc - 24*a2*b1*ka**2 - 6*b1**2*ka**2 - 6*b1*b2*ka
**2) + 28*df(x1,t,2)*x1**7*x2**3*a1**8*ka*( - 3*a1*kc + 2*b1*ka) - 28*df(x1,t,2)*x1**7*x2**2*y2*a1**8*b1*kc**2 + df(x1,t
,2)*x1**7*x2**2*a1**6*vm*(7*a1**2*ka*kc + 28*a1**2*kc**2 - 126*a1*a2*ka*kc - 6*a1*b1*ka**2 - 42*a1*b1*ka*kc + 60*a2*b1*
ka**2 + 15*b1**2*ka**2 + 15*b1*b2*ka**2) + 14*df(x1,t,2)*x1**6*x2**4*a1**8*ka*(9*a1*kc - 5*b1*ka) + 56*df(x1,t,2)*x1**6*
x2**3*y2*a1**8*b1*kc**2 + df(x1,t,2)*x1**6*x2**3*a1**6*vm*( - 21*a1**2*ka*kc - 56*a1**2*kc**2 + 210*a1*a2*ka*kc + 15*a1*
b1*ka**2 + 70*a1*b1*ka*kc - 80*a2*b1*ka**2 - 20*b1**2*ka**2 - 20*b1*b2*ka**2) + 14*df(x1,t,2)*x1**5*x2**5*a1**8*ka*( - 9
*a1*kc + 4*b1*ka) - 70*df(x1,t,2)*x1**5*x2**4*y2*a1**8*b1*kc**2 + 5*df(x1,t,2)*x1**5*x2**4*a1**6*vm*(7*a1**2*ka*kc + 14*
a1**2*kc**2 - 42*a1*a2*ka*kc - 4*a1*b1*ka**2 - 14*a1*b1*ka*kc + 12*a2*b1*ka**2 + 3*b1**2*ka**2 + 3*b1*b2*ka**2) + 28*df(
x1,t,2)*x1**4*x2**6*a1**8*ka*(3*a1*kc - b1*ka) + 56*df(x1,t,2)*x1**4*x2**5*y2*a1**8*b1*kc**2 + df(x1,t,2)*x1**4*x2**5*a1
**6*vm*( - 35*a1**2*ka*kc - 56*a1**2*kc**2 + 126*a1*a2*ka*kc + 15*a1*b1*ka**2 + 42*a1*b1*ka*kc - 24*a2*b1*ka**2 - 6*b1**
2*ka**2 - 6*b1*b2*ka**2) + 4*df(x1,t,2)*x1**3*x2**7*a1**8*ka*( - 9*a1*kc + 2*b1*ka) - 28*df(x1,t,2)*x1**3*x2**6*y2*a1**8
*b1*kc**2 + df(x1,t,2)*x1**3*x2**6*a1**6*vm*(21*a1**2*ka*kc + 28*a1**2*kc**2 - 42*a1*a2*ka*kc - 6*a1*b1*ka**2 - 14*a1*b1
*ka*kc + 4*a2*b1*ka**2 + b1**2*ka**2 + b1*b2*ka**2) + df(x1,t,2)*x1**2*x2**8*a1**8*ka*(9*a1*kc - b1*ka) + 8*df(x1,t,2)*
x1**2*x2**7*y2*a1**8*b1*kc**2 + df(x1,t,2)*x1**2*x2**7*a1**7*vm*( - 7*a1*ka*kc - 8*a1*kc**2 + 6*a2*ka*kc + b1*ka**2 + 2*
b1*ka*kc) - df(x1,t,2)*x1*x2**9*a1**9*ka*kc - df(x1,t,2)*x1*x2**8*y2*a1**8*b1*kc**2 + df(x1,t,2)*x1*x2**8*a1**8*kc*vm*(
ka + kc) + df(x1,t)**11*kc*(ka - kc) + 2*df(x1,t)**10*x1*kc*(4*a1*ka - 5*a1*kc + b1*ka) + df(x1,t)**10*x2*a1*kc*( - 9*ka
 + 10*kc) + df(x1,t)**10*y2*b1*kc**2 + df(x1,t)**10*kc*vm*(ka - kc) + df(x1,t)**9*x1**2*(28*a1**2*ka*kc - 45*a1**2*kc**2
 + a1*a2*ka*kc + 18*a1*b1*ka*kc - b1**2*ka**2 - b1*b2*ka**2) + df(x1,t)**9*x1*x2*a1*kc*( - 64*a1*ka + 90*a1*kc - a2*ka -
 18*b1*ka) + df(x1,t)**9*x1*y2*b1*kc**2*(8*a1 - b2) + 2*df(x1,t)**9*x1*kc*vm*(2*a1*ka - 4*a1*kc + b1*ka) + 9*df(x1,t)**9
*x2**2*a1**2*kc*(4*ka - 5*kc) - 9*df(x1,t)**9*x2*y2*a1*b1*kc**2 + df(x1,t)**9*x2*a1*kc*vm*( - 8*ka + 9*kc) + 8*df(x1,t)
**8*x1**3*a1*(7*a1**2*ka*kc - 15*a1**2*kc**2 + a1*a2*ka*kc + 9*a1*b1*ka*kc - b1**2*ka**2 - b1*b2*ka**2) + 4*df(x1,t)**8*
x1**2*x2*a1*( - 49*a1**2*ka*kc + 90*a1**2*kc**2 - 4*a1*a2*ka*kc - 36*a1*b1*ka*kc + 2*b1**2*ka**2 + 2*b1*b2*ka**2) + df(
x1,t)**8*x1**2*y2*a1*b1*kc**2*(28*a1 + a2 - 9*b2) + df(x1,t)**8*x1**2*vm*(3*a1**2*ka*kc - 28*a1**2*kc**2 + 5*a1*a2*ka*kc
 - a1*a2*kc**2 + 2*a1*b1*ka**2 + 14*a1*b1*ka*kc - b1**2*ka**2 - b1*b2*ka**2) + 8*df(x1,t)**8*x1*x2**2*a1**2*kc*(28*a1*ka
 - 45*a1*kc + a2*ka + 9*b1*ka) + df(x1,t)**8*x1*x2*y2*a1*b1*kc**2*( - 64*a1 - a2 + 9*b2) + df(x1,t)**8*x1*x2*a1*kc*vm*( 
- 28*a1*ka + 64*a1*kc - 4*a2*ka + a2*kc - 16*b1*ka) + 12*df(x1,t)**8*x2**3*a1**3*kc*( - 7*ka + 10*kc) + 36*df(x1,t)**8*
x2**2*y2*a1**2*b1*kc**2 + 4*df(x1,t)**8*x2**2*a1**2*kc*vm*(7*ka - 9*kc) + 14*df(x1,t)**7*x1**4*a1**2*(5*a1**2*ka*kc - 15
*a1**2*kc**2 + 2*a1*a2*ka*kc + 12*a1*b1*ka*kc - 2*b1**2*ka**2 - 2*b1*b2*ka**2) + 28*df(x1,t)**7*x1**3*x2*a1**2*( - 12*a1
**2*ka*kc + 30*a1**2*kc**2 - 3*a1*a2*ka*kc - 18*a1*b1*ka*kc + 2*b1**2*ka**2 + 2*b1*b2*ka**2) + 4*df(x1,t)**7*x1**3*y2*a1
**2*b1*kc**2*(14*a1 + 2*a2 - 9*b2) + df(x1,t)**7*x1**3*a1*vm*( - 10*a1**2*ka*kc - 56*a1**2*kc**2 + 29*a1*a2*ka*kc - 8*a1
*a2*kc**2 + 10*a1*b1*ka**2 + 42*a1*b1*ka*kc - a2**2*ka*kc - 3*a2*b1*ka**2 + 2*a2*b1*ka*kc - 6*b1**2*ka**2 - 6*b1*b2*ka**
2) + 28*df(x1,t)**7*x1**2*x2**2*a1**2*(21*a1**2*ka*kc - 45*a1**2*kc**2 + 3*a1*a2*ka*kc + 18*a1*b1*ka*kc - b1**2*ka**2 - 
b1*b2*ka**2) + 4*df(x1,t)**7*x1**2*x2*y2*a1**2*b1*kc**2*( - 49*a1 - 4*a2 + 18*b2) + df(x1,t)**7*x1**2*x2*a1*vm*( - 18*a1
**2*ka*kc + 196*a1**2*kc**2 - 57*a1*a2*ka*kc + 16*a1*a2*kc**2 - 12*a1*b1*ka**2 - 98*a1*b1*ka*kc + a2**2*ka*kc + 2*a2*b1*
ka**2 - 2*a2*b1*ka*kc + 7*b1**2*ka**2 + 7*b1*b2*ka**2) + 28*df(x1,t)**7*x1*x2**3*a1**3*kc*( - 16*a1*ka + 30*a1*kc - a2*
ka - 6*b1*ka) + 4*df(x1,t)**7*x1*x2**2*y2*a1**2*b1*kc**2*(56*a1 + 2*a2 - 9*b2) + 4*df(x1,t)**7*x1*x2**2*a1**2*kc*vm*(21*
a1*ka - 56*a1*kc + 7*a2*ka - 2*a2*kc + 14*b1*ka) + 42*df(x1,t)**7*x2**4*a1**4*kc*(3*ka - 5*kc) - 84*df(x1,t)**7*x2**3*y2
*a1**3*b1*kc**2 + 28*df(x1,t)**7*x2**3*a1**3*kc*vm*( - 2*ka + 3*kc) + 28*df(x1,t)**6*x1**5*a1**3*(2*a1**2*ka*kc - 9*a1**
2*kc**2 + 2*a1*a2*ka*kc + 9*a1*b1*ka*kc - 2*b1**2*ka**2 - 2*b1*b2*ka**2) + 14*df(x1,t)**6*x1**4*x2*a1**3*( - 25*a1**2*ka
*kc + 90*a1**2*kc**2 - 16*a1*a2*ka*kc - 72*a1*b1*ka*kc + 12*b1**2*ka**2 + 12*b1*b2*ka**2) + 14*df(x1,t)**6*x1**4*y2*a1**
3*b1*kc**2*(5*a1 + 2*a2 - 6*b2) + df(x1,t)**6*x1**4*a1*vm*( - 25*a1**3*ka*kc - 70*a1**3*kc**2 + 69*a1**2*a2*ka*kc - 28*
a1**2*a2*kc**2 + 20*a1**2*b1*ka**2 + 70*a1**2*b1*ka*kc - 4*a1*a2**2*ka*kc - 14*a1*a2*b1*ka**2 + 14*a1*a2*b1*ka*kc - 15*
a1*b1**2*ka**2 - 15*a1*b1*b2*ka**2 + a2**2*b1*ka**2 - a2*b1**2*ka**2 - a2*b1*b2*ka**2) + 168*df(x1,t)**6*x1**3*x2**2*a1
**3*(5*a1**2*ka*kc - 15*a1**2*kc**2 + 2*a1*a2*ka*kc + 9*a1*b1*ka*kc - b1**2*ka**2 - b1*b2*ka**2) + 84*df(x1,t)**6*x1**3*
x2*y2*a1**3*b1*kc**2*( - 4*a1 - a2 + 3*b2) + df(x1,t)**6*x1**3*x2*a1*vm*(50*a1**3*ka*kc + 336*a1**3*kc**2 - 222*a1**2*a2
*ka*kc + 84*a1**2*a2*kc**2 - 50*a1**2*b1*ka**2 - 252*a1**2*b1*ka*kc + 8*a1*a2**2*ka*kc + 26*a1*a2*b1*ka**2 - 28*a1*a2*b1
*ka*kc + 36*a1*b1**2*ka**2 + 36*a1*b1*b2*ka**2 - a2**2*b1*ka**2 + a2*b1**2*ka**2 + a2*b1*b2*ka**2) + 28*df(x1,t)**6*x1**
2*x2**3*a1**3*( - 35*a1**2*ka*kc + 90*a1**2*kc**2 - 8*a1*a2*ka*kc - 36*a1*b1*ka*kc + 2*b1**2*ka**2 + 2*b1*b2*ka**2) + 84
*df(x1,t)**6*x1**2*x2**2*y2*a1**3*b1*kc**2*(7*a1 + a2 - 3*b2) + df(x1,t)**6*x1**2*x2**2*a1**2*vm*(45*a1**2*ka*kc - 588*
a1**2*kc**2 + 237*a1*a2*ka*kc - 84*a1*a2*kc**2 + 30*a1*b1*ka**2 + 294*a1*b1*ka*kc - 4*a2**2*ka*kc - 12*a2*b1*ka**2 + 14*
a2*b1*ka*kc - 21*b1**2*ka**2 - 21*b1*b2*ka**2) + 28*df(x1,t)**6*x1*x2**4*a1**4*kc*(20*a1*ka - 45*a1*kc + 2*a2*ka + 9*b1*
ka) + 28*df(x1,t)**6*x1*x2**3*y2*a1**3*b1*kc**2*( - 16*a1 - a2 + 3*b2) + 28*df(x1,t)**6*x1*x2**3*a1**3*kc*vm*( - 5*a1*ka
 + 16*a1*kc - 3*a2*ka + a2*kc - 4*b1*ka) + 126*df(x1,t)**6*x2**5*a1**5*kc*( - ka + 2*kc) + 126*df(x1,t)**6*x2**4*y2*a1**
4*b1*kc**2 + 14*df(x1,t)**6*x2**4*a1**4*kc*vm*(5*ka - 9*kc) + 14*df(x1,t)**5*x1**6*a1**4*(2*a1**2*ka*kc - 15*a1**2*kc**2
 + 5*a1*a2*ka*kc + 18*a1*b1*ka*kc - 5*b1**2*ka**2 - 5*b1*b2*ka**2) + 14*df(x1,t)**5*x1**5*x2*a1**4*( - 16*a1**2*ka*kc + 
90*a1**2*kc**2 - 25*a1*a2*ka*kc - 90*a1*b1*ka*kc + 20*b1**2*ka**2 + 20*b1*b2*ka**2) + 14*df(x1,t)**5*x1**5*y2*a1**4*b1*
kc**2*(4*a1 + 4*a2 - 9*b2) + df(x1,t)**5*x1**5*a1**2*vm*( - 24*a1**3*ka*kc - 56*a1**3*kc**2 + 85*a1**2*a2*ka*kc - 56*a1
**2*a2*kc**2 + 20*a1**2*b1*ka**2 + 70*a1**2*b1*ka*kc - 3*a1*a2**2*ka*kc - 25*a1*a2*b1*ka**2 + 42*a1*a2*b1*ka*kc - 20*a1*
b1**2*ka**2 - 20*a1*b1*b2*ka**2 + 4*a2**2*b1*ka**2 - 6*a2*b1**2*ka**2 - 6*a2*b1*b2*ka**2) + 70*df(x1,t)**5*x1**4*x2**2*
a1**4*(10*a1**2*ka*kc - 45*a1**2*kc**2 + 10*a1*a2*ka*kc + 36*a1*b1*ka*kc - 6*b1**2*ka**2 - 6*b1*b2*ka**2) + 14*df(x1,t)
**5*x1**4*x2*y2*a1**4*b1*kc**2*( - 25*a1 - 16*a2 + 36*b2) + df(x1,t)**5*x1**4*x2*a1**2*vm*(100*a1**3*ka*kc + 350*a1**3*
kc**2 - 395*a1**2*a2*ka*kc + 224*a1**2*a2*kc**2 - 80*a1**2*b1*ka**2 - 350*a1**2*b1*ka*kc + 9*a1*a2**2*ka*kc + 80*a1*a2*
b1*ka**2 - 126*a1*a2*b1*ka*kc + 75*a1*b1**2*ka**2 + 75*a1*b1*b2*ka**2 - 8*a2**2*b1*ka**2 + 12*a2*b1**2*ka**2 + 12*a2*b1*
b2*ka**2) + 140*df(x1,t)**5*x1**3*x2**3*a1**4*( - 8*a1**2*ka*kc + 30*a1**2*kc**2 - 5*a1*a2*ka*kc - 18*a1*b1*ka*kc + 2*b1
**2*ka**2 + 2*b1*b2*ka**2) + 84*df(x1,t)**5*x1**3*x2**2*y2*a1**4*b1*kc**2*(10*a1 + 4*a2 - 9*b2) + df(x1,t)**5*x1**3*x2**
2*a1**2*vm*( - 100*a1**3*ka*kc - 840*a1**3*kc**2 + 675*a1**2*a2*ka*kc - 336*a1**2*a2*kc**2 + 100*a1**2*b1*ka**2 + 630*a1
**2*b1*ka*kc - 9*a1*a2**2*ka*kc - 85*a1*a2*b1*ka**2 + 126*a1*a2*b1*ka*kc - 90*a1*b1**2*ka**2 - 90*a1*b1*b2*ka**2 + 4*a2
**2*b1*ka**2 - 6*a2*b1**2*ka**2 - 6*a2*b1*b2*ka**2) + 70*df(x1,t)**5*x1**2*x2**4*a1**4*(14*a1**2*ka*kc - 45*a1**2*kc**2 
+ 5*a1*a2*ka*kc + 18*a1*b1*ka*kc - b1**2*ka**2 - b1*b2*ka**2) + 28*df(x1,t)**5*x1**2*x2**3*y2*a1**4*b1*kc**2*( - 35*a1 -
 8*a2 + 18*b2) + df(x1,t)**5*x1**2*x2**3*a1**3*vm*( - 60*a1**2*ka*kc + 980*a1**2*kc**2 - 505*a1*a2*ka*kc + 224*a1*a2*kc
**2 - 40*a1*b1*ka**2 - 490*a1*b1*ka*kc + 3*a2**2*ka*kc + 30*a2*b1*ka**2 - 42*a2*b1*ka*kc + 35*b1**2*ka**2 + 35*b1*b2*ka
**2) + 14*df(x1,t)**5*x1*x2**5*a1**5*kc*( - 32*a1*ka + 90*a1*kc - 5*a2*ka - 18*b1*ka) + 14*df(x1,t)**5*x1*x2**4*y2*a1**4
*b1*kc**2*(40*a1 + 4*a2 - 9*b2) + 28*df(x1,t)**5*x1*x2**4*a1**4*kc*vm*(5*a1*ka - 20*a1*kc + 5*a2*ka - 2*a2*kc + 5*b1*ka)
 + 42*df(x1,t)**5*x2**6*a1**6*kc*(2*ka - 5*kc) - 126*df(x1,t)**5*x2**5*y2*a1**5*b1*kc**2 + 14*df(x1,t)**5*x2**5*a1**5*kc
*vm*( - 4*ka + 9*kc) + 8*df(x1,t)**4*x1**7*a1**5*(a1**2*ka*kc - 15*a1**2*kc**2 + 7*a1*a2*ka*kc + 21*a1*b1*ka*kc - 7*b1**
2*ka**2 - 7*b1*b2*ka**2) + 28*df(x1,t)**4*x1**6*x2*a1**5*( - 3*a1**2*ka*kc + 30*a1**2*kc**2 - 12*a1*a2*ka*kc - 36*a1*b1*
ka*kc + 10*b1**2*ka**2 + 10*b1*b2*ka**2) + 14*df(x1,t)**4*x1**6*y2*a1**5*b1*kc**2*(2*a1 + 5*a2 - 9*b2) + df(x1,t)**4*x1
**6*a1**3*vm*( - 11*a1**3*ka*kc - 28*a1**3*kc**2 + 55*a1**2*a2*ka*kc - 70*a1**2*a2*kc**2 + 10*a1**2*b1*ka**2 + 42*a1**2*
b1*ka*kc + 10*a1*a2**2*ka*kc - 20*a1*a2*b1*ka**2 + 70*a1*a2*b1*ka*kc - 15*a1*b1**2*ka**2 - 15*a1*b1*b2*ka**2 + 5*a2**2*
b1*ka**2 - 15*a2*b1**2*ka**2 - 15*a2*b1*b2*ka**2) + 56*df(x1,t)**4*x1**5*x2**2*a1**5*(6*a1**2*ka*kc - 45*a1**2*kc**2 + 
15*a1*a2*ka*kc + 45*a1*b1*ka*kc - 10*b1**2*ka**2 - 10*b1*b2*ka**2) + 14*df(x1,t)**4*x1**5*x2*y2*a1**5*b1*kc**2*( - 16*a1
 - 25*a2 + 45*b2) + df(x1,t)**4*x1**5*x2*a1**3*vm*(72*a1**3*ka*kc + 224*a1**3*kc**2 - 360*a1**2*a2*ka*kc + 350*a1**2*a2*
kc**2 - 60*a1**2*b1*ka**2 - 280*a1**2*b1*ka*kc - 40*a1*a2**2*ka*kc + 100*a1*a2*b1*ka**2 - 280*a1*a2*b1*ka*kc + 80*a1*b1
**2*ka**2 + 80*a1*b1*b2*ka**2 - 15*a2**2*b1*ka**2 + 45*a2*b1**2*ka**2 + 45*a2*b1*b2*ka**2) + 140*df(x1,t)**4*x1**4*x2**3
*a1**5*( - 5*a1**2*ka*kc + 30*a1**2*kc**2 - 8*a1*a2*ka*kc - 24*a1*b1*ka*kc + 4*b1**2*ka**2 + 4*b1*b2*ka**2) + 140*df(x1,
t)**4*x1**4*x2**2*y2*a1**5*b1*kc**2*(5*a1 + 5*a2 - 9*b2) + 5*df(x1,t)**4*x1**4*x2**2*a1**3*vm*( - 30*a1**3*ka*kc - 140*
a1**3*kc**2 + 178*a1**2*a2*ka*kc - 140*a1**2*a2*kc**2 + 24*a1**2*b1*ka**2 + 140*a1**2*b1*ka*kc + 12*a1*a2**2*ka*kc - 36*
a1*a2*b1*ka**2 + 84*a1*a2*b1*ka*kc - 30*a1*b1**2*ka**2 - 30*a1*b1*b2*ka**2 + 3*a2**2*b1*ka**2 - 9*a2*b1**2*ka**2 - 9*a2*
b1*b2*ka**2) + 280*df(x1,t)**4*x1**3*x2**4*a1**5*(3*a1**2*ka*kc - 15*a1**2*kc**2 + 3*a1*a2*ka*kc + 9*a1*b1*ka*kc - b1**2
*ka**2 - b1*b2*ka**2) + 140*df(x1,t)**4*x1**3*x2**3*y2*a1**5*b1*kc**2*( - 8*a1 - 5*a2 + 9*b2) + 5*df(x1,t)**4*x1**3*x2**
3*a1**3*vm*(20*a1**3*ka*kc + 224*a1**3*kc**2 - 212*a1**2*a2*ka*kc + 140*a1**2*a2*kc**2 - 20*a1**2*b1*ka**2 - 168*a1**2*
b1*ka*kc - 8*a1*a2**2*ka*kc + 28*a1*a2*b1*ka**2 - 56*a1*a2*b1*ka*kc + 24*a1*b1**2*ka**2 + 24*a1*b1*b2*ka**2 - a2**2*b1*
ka**2 + 3*a2*b1**2*ka**2 + 3*a2*b1*b2*ka**2) + 28*df(x1,t)**4*x1**2*x2**5*a1**5*( - 21*a1**2*ka*kc + 90*a1**2*kc**2 - 12
*a1*a2*ka*kc - 36*a1*b1*ka*kc + 2*b1**2*ka**2 + 2*b1*b2*ka**2) + 70*df(x1,t)**4*x1**2*x2**4*y2*a1**5*b1*kc**2*(14*a1 + 5
*a2 - 9*b2) + 5*df(x1,t)**4*x1**2*x2**4*a1**4*vm*(9*a1**2*ka*kc - 196*a1**2*kc**2 + 123*a1*a2*ka*kc - 70*a1*a2*kc**2 + 6
*a1*b1*ka**2 + 98*a1*b1*ka*kc + 2*a2**2*ka*kc - 8*a2*b1*ka**2 + 14*a2*b1*ka*kc - 7*b1**2*ka**2 - 7*b1*b2*ka**2) + 56*df(
x1,t)**4*x1*x2**6*a1**6*kc*(4*a1*ka - 15*a1*kc + a2*ka + 3*b1*ka) + 14*df(x1,t)**4*x1*x2**5*y2*a1**5*b1*kc**2*( - 32*a1 
- 5*a2 + 9*b2) + 14*df(x1,t)**4*x1*x2**5*a1**5*kc*vm*( - 6*a1*ka + 32*a1*kc - 10*a2*ka + 5*a2*kc - 8*b1*ka) + 12*df(x1,t
)**4*x2**7*a1**7*kc*( - 3*ka + 10*kc) + 84*df(x1,t)**4*x2**6*y2*a1**6*b1*kc**2 + 28*df(x1,t)**4*x2**6*a1**6*kc*vm*(ka - 
3*kc) + df(x1,t)**3*x1**8*a1**6*(a1**2*ka*kc - 45*a1**2*kc**2 + 28*a1*a2*ka*kc + 72*a1*b1*ka*kc - 28*b1**2*ka**2 - 28*b1
*b2*ka**2) + 4*df(x1,t)**3*x1**7*x2*a1**6*( - 4*a1**2*ka*kc + 90*a1**2*kc**2 - 49*a1*a2*ka*kc - 126*a1*b1*ka*kc + 42*b1
**2*ka**2 + 42*b1*b2*ka**2) + 4*df(x1,t)**3*x1**7*y2*a1**6*b1*kc**2*(2*a1 + 14*a2 - 21*b2) + df(x1,t)**3*x1**7*a1**4*vm*
( - 2*a1**3*ka*kc - 8*a1**3*kc**2 + 15*a1**2*a2*ka*kc - 56*a1**2*a2*kc**2 + 2*a1**2*b1*ka**2 + 14*a1**2*b1*ka*kc + 25*a1
*a2**2*ka*kc - 5*a1*a2*b1*ka**2 + 70*a1*a2*b1*ka*kc - 6*a1*b1**2*ka**2 - 6*a1*b1*b2*ka**2 - 20*a2*b1**2*ka**2 - 20*a2*b1
*b2*ka**2) + 84*df(x1,t)**3*x1**6*x2**2*a1**6*(a1**2*ka*kc - 15*a1**2*kc**2 + 7*a1*a2*ka*kc + 18*a1*b1*ka*kc - 5*b1**2*
ka**2 - 5*b1*b2*ka**2) + 84*df(x1,t)**3*x1**6*x2*y2*a1**6*b1*kc**2*( - a1 - 4*a2 + 6*b2) + df(x1,t)**3*x1**6*x2*a1**4*vm
*(22*a1**3*ka*kc + 84*a1**3*kc**2 - 159*a1**2*a2*ka*kc + 336*a1**2*a2*kc**2 - 20*a1**2*b1*ka**2 - 126*a1**2*b1*ka*kc - 
125*a1*a2**2*ka*kc + 50*a1*a2*b1*ka**2 - 350*a1*a2*b1*ka*kc + 45*a1*b1**2*ka**2 + 45*a1*b1*b2*ka**2 + 80*a2*b1**2*ka**2 
+ 80*a2*b1*b2*ka**2) + 28*df(x1,t)**3*x1**5*x2**3*a1**6*( - 8*a1**2*ka*kc + 90*a1**2*kc**2 - 35*a1*a2*ka*kc - 90*a1*b1*
ka*kc + 20*b1**2*ka**2 + 20*b1*b2*ka**2) + 84*df(x1,t)**3*x1**5*x2**2*y2*a1**6*b1*kc**2*(4*a1 + 10*a2 - 15*b2) + 2*df(x1
,t)**3*x1**5*x2**2*a1**4*vm*( - 36*a1**3*ka*kc - 168*a1**3*kc**2 + 285*a1**2*a2*ka*kc - 420*a1**2*a2*kc**2 + 30*a1**2*b1
*ka**2 + 210*a1**2*b1*ka*kc + 125*a1*a2**2*ka*kc - 75*a1*a2*b1*ka**2 + 350*a1*a2*b1*ka*kc - 60*a1*b1**2*ka**2 - 60*a1*b1
*b2*ka**2 - 60*a2*b1**2*ka**2 - 60*a2*b1*b2*ka**2) + 70*df(x1,t)**3*x1**4*x2**4*a1**6*(5*a1**2*ka*kc - 45*a1**2*kc**2 + 
14*a1*a2*ka*kc + 36*a1*b1*ka*kc - 6*b1**2*ka**2 - 6*b1*b2*ka**2) + 140*df(x1,t)**3*x1**4*x2**3*y2*a1**6*b1*kc**2*( - 5*
a1 - 8*a2 + 12*b2) + 10*df(x1,t)**3*x1**4*x2**3*a1**4*vm*(10*a1**3*ka*kc + 70*a1**3*kc**2 - 99*a1**2*a2*ka*kc + 112*a1**
2*a2*kc**2 - 8*a1**2*b1*ka**2 - 70*a1**2*b1*ka*kc - 25*a1*a2**2*ka*kc + 20*a1*a2*b1*ka**2 - 70*a1*a2*b1*ka*kc + 15*a1*b1
**2*ka**2 + 15*a1*b1*b2*ka**2 + 8*a2*b1**2*ka**2 + 8*a2*b1*b2*ka**2) + 84*df(x1,t)**3*x1**3*x2**5*a1**6*( - 4*a1**2*ka*
kc + 30*a1**2*kc**2 - 7*a1*a2*ka*kc - 18*a1*b1*ka*kc + 2*b1**2*ka**2 + 2*b1*b2*ka**2) + 420*df(x1,t)**3*x1**3*x2**4*y2*
a1**6*b1*kc**2*(2*a1 + 2*a2 - 3*b2) + 5*df(x1,t)**3*x1**3*x2**4*a1**4*vm*( - 10*a1**3*ka*kc - 168*a1**3*kc**2 + 183*a1**
2*a2*ka*kc - 168*a1**2*a2*kc**2 + 10*a1**2*b1*ka**2 + 126*a1**2*b1*ka*kc + 25*a1*a2**2*ka*kc - 25*a1*a2*b1*ka**2 + 70*a1
*a2*b1*ka*kc - 18*a1*b1**2*ka**2 - 18*a1*b1*b2*ka**2 - 4*a2*b1**2*ka**2 - 4*a2*b1*b2*ka**2) + 28*df(x1,t)**3*x1**2*x2**6
*a1**6*(7*a1**2*ka*kc - 45*a1**2*kc**2 + 7*a1*a2*ka*kc + 18*a1*b1*ka*kc - b1**2*ka**2 - b1*b2*ka**2) + 84*df(x1,t)**3*x1
**2*x2**5*y2*a1**6*b1*kc**2*( - 7*a1 - 4*a2 + 6*b2) + df(x1,t)**3*x1**2*x2**5*a1**5*vm*( - 18*a1**2*ka*kc + 588*a1**2*kc
**2 - 435*a1*a2*ka*kc + 336*a1*a2*kc**2 - 12*a1*b1*ka**2 - 294*a1*b1*ka*kc - 25*a2**2*ka*kc + 30*a2*b1*ka**2 - 70*a2*b1*
ka*kc + 21*b1**2*ka**2 + 21*b1*b2*ka**2) + 4*df(x1,t)**3*x1*x2**7*a1**7*kc*( - 16*a1*ka + 90*a1*kc - 7*a2*ka - 18*b1*ka)
 + 28*df(x1,t)**3*x1*x2**6*y2*a1**6*b1*kc**2*(8*a1 + 2*a2 - 3*b2) + 28*df(x1,t)**3*x1*x2**6*a1**6*kc*vm*(a1*ka - 8*a1*kc
 + 3*a2*ka - 2*a2*kc + 2*b1*ka) + 9*df(x1,t)**3*x2**8*a1**8*kc*(ka - 5*kc) - 36*df(x1,t)**3*x2**7*y2*a1**7*b1*kc**2 + 4*
df(x1,t)**3*x2**7*a1**7*kc*vm*( - 2*ka + 9*kc) + 2*df(x1,t)**2*x1**9*a1**7*( - 5*a1**2*kc**2 + 4*a1*a2*ka*kc + 9*a1*b1*
ka*kc - 4*b1**2*ka**2 - 4*b1*b2*ka**2) + df(x1,t)**2*x1**8*x2*a1**7*( - a1**2*ka*kc + 90*a1**2*kc**2 - 64*a1*a2*ka*kc - 
144*a1*b1*ka*kc + 56*b1**2*ka**2 + 56*b1*b2*ka**2) + df(x1,t)**2*x1**8*y2*a1**7*b1*kc**2*(a1 + 28*a2 - 36*b2) + df(x1,t)
**2*x1**8*a1**5*vm*( - a1**3*kc**2 - a1**2*a2*ka*kc - 28*a1**2*a2*kc**2 + 2*a1**2*b1*ka*kc + 24*a1*a2**2*ka*kc + 2*a1*a2
*b1*ka**2 + 42*a1*a2*b1*ka*kc - a1*b1**2*ka**2 - a1*b1*b2*ka**2 - 5*a2**2*b1*ka**2 - 15*a2*b1**2*ka**2 - 15*a2*b1*b2*ka
**2) + 8*df(x1,t)**2*x1**7*x2**2*a1**7*(a1**2*ka*kc - 45*a1**2*kc**2 + 28*a1*a2*ka*kc + 63*a1*b1*ka*kc - 21*b1**2*ka**2 
- 21*b1*b2*ka**2) + 4*df(x1,t)**2*x1**7*x2*y2*a1**7*b1*kc**2*( - 4*a1 - 49*a2 + 63*b2) + df(x1,t)**2*x1**7*x2*a1**5*vm*(
2*a1**3*ka*kc + 16*a1**3*kc**2 - 22*a1**2*a2*ka*kc + 196*a1**2*a2*kc**2 - 2*a1**2*b1*ka**2 - 28*a1**2*b1*ka*kc - 144*a1*
a2**2*ka*kc + 2*a1*a2*b1*ka**2 - 252*a1*a2*b1*ka*kc + 12*a1*b1**2*ka**2 + 12*a1*b1*b2*ka**2 + 25*a2**2*b1*ka**2 + 75*a2*
b1**2*ka**2 + 75*a2*b1*b2*ka**2) + 28*df(x1,t)**2*x1**6*x2**3*a1**7*( - a1**2*ka*kc + 30*a1**2*kc**2 - 16*a1*a2*ka*kc - 
36*a1*b1*ka*kc + 10*b1**2*ka**2 + 10*b1*b2*ka**2) + 84*df(x1,t)**2*x1**6*x2**2*y2*a1**7*b1*kc**2*(a1 + 7*a2 - 9*b2) + df
(x1,t)**2*x1**6*x2**2*a1**5*vm*( - 11*a1**3*ka*kc - 84*a1**3*kc**2 + 153*a1**2*a2*ka*kc - 588*a1**2*a2*kc**2 + 10*a1**2*
b1*ka**2 + 126*a1**2*b1*ka*kc + 360*a1*a2**2*ka*kc - 40*a1*a2*b1*ka**2 + 630*a1*a2*b1*ka*kc - 45*a1*b1**2*ka**2 - 45*a1*
b1*b2*ka**2 - 50*a2**2*b1*ka**2 - 150*a2*b1**2*ka**2 - 150*a2*b1*b2*ka**2) + 28*df(x1,t)**2*x1**5*x2**4*a1**7*(2*a1**2*
ka*kc - 45*a1**2*kc**2 + 20*a1*a2*ka*kc + 45*a1*b1*ka*kc - 10*b1**2*ka**2 - 10*b1*b2*ka**2) + 28*df(x1,t)**2*x1**5*x2**3
*y2*a1**7*b1*kc**2*( - 8*a1 - 35*a2 + 45*b2) + 2*df(x1,t)**2*x1**5*x2**3*a1**5*vm*(12*a1**3*ka*kc + 112*a1**3*kc**2 - 
200*a1**2*a2*ka*kc + 490*a1**2*a2*kc**2 - 10*a1**2*b1*ka**2 - 140*a1**2*b1*ka*kc - 240*a1*a2**2*ka*kc + 50*a1*a2*b1*ka**
2 - 420*a1*a2*b1*ka*kc + 40*a1*b1**2*ka**2 + 40*a1*b1*b2*ka**2 + 25*a2**2*b1*ka**2 + 75*a2*b1**2*ka**2 + 75*a2*b1*b2*ka
**2) + 14*df(x1,t)**2*x1**4*x2**5*a1**7*( - 5*a1**2*ka*kc + 90*a1**2*kc**2 - 32*a1*a2*ka*kc - 72*a1*b1*ka*kc + 12*b1**2*
ka**2 + 12*b1*b2*ka**2) + 70*df(x1,t)**2*x1**4*x2**4*y2*a1**7*b1*kc**2*(5*a1 + 14*a2 - 18*b2) + 5*df(x1,t)**2*x1**4*x2**
4*a1**5*vm*( - 5*a1**3*ka*kc - 70*a1**3*kc**2 + 109*a1**2*a2*ka*kc - 196*a1**2*a2*kc**2 + 4*a1**2*b1*ka**2 + 70*a1**2*b1
*ka*kc + 72*a1*a2**2*ka*kc - 22*a1*a2*b1*ka**2 + 126*a1*a2*b1*ka*kc - 15*a1*b1**2*ka**2 - 15*a1*b1*b2*ka**2 - 5*a2**2*b1
*ka**2 - 15*a2*b1**2*ka**2 - 15*a2*b1*b2*ka**2) + 56*df(x1,t)**2*x1**3*x2**6*a1**7*(a1**2*ka*kc - 15*a1**2*kc**2 + 4*a1*
a2*ka*kc + 9*a1*b1*ka*kc - b1**2*ka**2 - b1*b2*ka**2) + 84*df(x1,t)**2*x1**3*x2**5*y2*a1**7*b1*kc**2*( - 4*a1 - 7*a2 + 9
*b2) + df(x1,t)**2*x1**3*x2**5*a1**5*vm*(10*a1**3*ka*kc + 336*a1**3*kc**2 - 414*a1**2*a2*ka*kc + 588*a1**2*a2*kc**2 - 10
*a1**2*b1*ka**2 - 252*a1**2*b1*ka*kc - 144*a1*a2**2*ka*kc + 58*a1*a2*b1*ka**2 - 252*a1*a2*b1*ka*kc + 36*a1*b1**2*ka**2 +
 36*a1*b1*b2*ka**2 + 5*a2**2*b1*ka**2 + 15*a2*b1**2*ka**2 + 15*a2*b1*b2*ka**2) + 4*df(x1,t)**2*x1**2*x2**7*a1**7*( - 7*
a1**2*ka*kc + 90*a1**2*kc**2 - 16*a1*a2*ka*kc - 36*a1*b1*ka*kc + 2*b1**2*ka**2 + 2*b1*b2*ka**2) + 28*df(x1,t)**2*x1**2*
x2**6*y2*a1**7*b1*kc**2*(7*a1 + 7*a2 - 9*b2) + df(x1,t)**2*x1**2*x2**6*a1**6*vm*(3*a1**2*ka*kc - 196*a1**2*kc**2 + 167*
a1*a2*ka*kc - 196*a1*a2*kc**2 + 2*a1*b1*ka**2 + 98*a1*b1*ka*kc + 24*a2**2*ka*kc - 12*a2*b1*ka**2 + 42*a2*b1*ka*kc - 7*b1
**2*ka**2 - 7*b1*b2*ka**2) + 2*df(x1,t)**2*x1*x2**8*a1**8*kc*(4*a1*ka - 45*a1*kc + 4*a2*ka + 9*b1*ka) + 4*df(x1,t)**2*x1
*x2**7*y2*a1**7*b1*kc**2*( - 16*a1 - 7*a2 + 9*b2) + 4*df(x1,t)**2*x1*x2**7*a1**7*kc*vm*( - a1*ka + 16*a1*kc - 7*a2*ka + 
7*a2*kc - 4*b1*ka) + df(x1,t)**2*x2**9*a1**9*kc*( - ka + 10*kc) + 9*df(x1,t)**2*x2**8*y2*a1**8*b1*kc**2 + df(x1,t)**2*x2
**8*a1**8*kc*vm*(ka - 9*kc) + df(x1,t)*x1**10*a1**8*( - a1**2*kc**2 + a1*a2*ka*kc + 2*a1*b1*ka*kc - b1**2*ka**2 - b1*b2*
ka**2) + df(x1,t)*x1**9*x2*a1**8*(10*a1**2*kc**2 - 9*a1*a2*ka*kc - 18*a1*b1*ka*kc + 8*b1**2*ka**2 + 8*b1*b2*ka**2) + df(
x1,t)*x1**9*y2*a1**8*b1*kc**2*(8*a2 - 9*b2) + df(x1,t)*x1**9*a1**6*a2*vm*( - a1**2*ka*kc - 8*a1**2*kc**2 + 11*a1*a2*ka*
kc + a1*b1*ka**2 + 14*a1*b1*ka*kc - 4*a2*b1*ka**2 - 6*b1**2*ka**2 - 6*b1*b2*ka**2) + df(x1,t)*x1**8*x2**2*a1**8*( - 45*
a1**2*kc**2 + 36*a1*a2*ka*kc + 72*a1*b1*ka*kc - 28*b1**2*ka**2 - 28*b1*b2*ka**2) + df(x1,t)*x1**8*x2*y2*a1**8*b1*kc**2*(
 - a1 - 64*a2 + 72*b2) + df(x1,t)*x1**8*x2*a1**6*vm*(a1**3*kc**2 + 3*a1**2*a2*ka*kc + 64*a1**2*a2*kc**2 - 2*a1**2*b1*ka*
kc - 77*a1*a2**2*ka*kc - 4*a1*a2*b1*ka**2 - 98*a1*a2*b1*ka*kc + a1*b1**2*ka**2 + a1*b1*b2*ka**2 + 24*a2**2*b1*ka**2 + 36
*a2*b1**2*ka**2 + 36*a2*b1*b2*ka**2) + 4*df(x1,t)*x1**7*x2**3*a1**8*(30*a1**2*kc**2 - 21*a1*a2*ka*kc - 42*a1*b1*ka*kc + 
14*b1**2*ka**2 + 14*b1*b2*ka**2) + 4*df(x1,t)*x1**7*x2**2*y2*a1**8*b1*kc**2*(2*a1 + 56*a2 - 63*b2) + df(x1,t)*x1**7*x2**
2*a1**6*vm*( - 8*a1**3*kc**2 + 7*a1**2*a2*ka*kc - 224*a1**2*a2*kc**2 + 14*a1**2*b1*ka*kc + 231*a1*a2**2*ka*kc + 3*a1*a2*
b1*ka**2 + 294*a1*a2*b1*ka*kc - 6*a1*b1**2*ka**2 - 6*a1*b1*b2*ka**2 - 60*a2**2*b1*ka**2 - 90*a2*b1**2*ka**2 - 90*a2*b1*
b2*ka**2) + 14*df(x1,t)*x1**6*x2**4*a1**8*( - 15*a1**2*kc**2 + 9*a1*a2*ka*kc + 18*a1*b1*ka*kc - 5*b1**2*ka**2 - 5*b1*b2*
ka**2) + 28*df(x1,t)*x1**6*x2**3*y2*a1**8*b1*kc**2*( - a1 - 16*a2 + 18*b2) + df(x1,t)*x1**6*x2**3*a1**6*vm*(28*a1**3*kc
**2 - 49*a1**2*a2*ka*kc + 448*a1**2*a2*kc**2 - 42*a1**2*b1*ka*kc - 385*a1*a2**2*ka*kc + 10*a1*a2*b1*ka**2 - 490*a1*a2*b1
*ka*kc + 15*a1*b1**2*ka**2 + 15*a1*b1*b2*ka**2 + 80*a2**2*b1*ka**2 + 120*a2*b1**2*ka**2 + 120*a2*b1*b2*ka**2) + 14*df(x1
,t)*x1**5*x2**5*a1**8*(18*a1**2*kc**2 - 9*a1*a2*ka*kc - 18*a1*b1*ka*kc + 4*b1**2*ka**2 + 4*b1*b2*ka**2) + 14*df(x1,t)*x1
**5*x2**4*y2*a1**8*b1*kc**2*(4*a1 + 40*a2 - 45*b2) + df(x1,t)*x1**5*x2**4*a1**6*vm*( - 56*a1**3*kc**2 + 105*a1**2*a2*ka*
kc - 560*a1**2*a2*kc**2 + 70*a1**2*b1*ka*kc + 385*a1*a2**2*ka*kc - 25*a1*a2*b1*ka**2 + 490*a1*a2*b1*ka*kc - 20*a1*b1**2*
ka**2 - 20*a1*b1*b2*ka**2 - 60*a2**2*b1*ka**2 - 90*a2*b1**2*ka**2 - 90*a2*b1*b2*ka**2) + 14*df(x1,t)*x1**4*x2**6*a1**8*(
 - 15*a1**2*kc**2 + 6*a1*a2*ka*kc + 12*a1*b1*ka*kc - 2*b1**2*ka**2 - 2*b1*b2*ka**2) + 14*df(x1,t)*x1**4*x2**5*y2*a1**8*
b1*kc**2*( - 5*a1 - 32*a2 + 36*b2) + df(x1,t)*x1**4*x2**5*a1**6*vm*(70*a1**3*kc**2 - 119*a1**2*a2*ka*kc + 448*a1**2*a2*
kc**2 - 70*a1**2*b1*ka*kc - 231*a1*a2**2*ka*kc + 24*a1*a2*b1*ka**2 - 294*a1*a2*b1*ka*kc + 15*a1*b1**2*ka**2 + 15*a1*b1*
b2*ka**2 + 24*a2**2*b1*ka**2 + 36*a2*b1**2*ka**2 + 36*a2*b1*b2*ka**2) + 4*df(x1,t)*x1**3*x2**7*a1**8*(30*a1**2*kc**2 - 9
*a1*a2*ka*kc - 18*a1*b1*ka*kc + 2*b1**2*ka**2 + 2*b1*b2*ka**2) + 28*df(x1,t)*x1**3*x2**6*y2*a1**8*b1*kc**2*(2*a1 + 8*a2 
- 9*b2) + df(x1,t)*x1**3*x2**6*a1**6*vm*( - 56*a1**3*kc**2 + 77*a1**2*a2*ka*kc - 224*a1**2*a2*kc**2 + 42*a1**2*b1*ka*kc 
+ 77*a1*a2**2*ka*kc - 11*a1*a2*b1*ka**2 + 98*a1*a2*b1*ka*kc - 6*a1*b1**2*ka**2 - 6*a1*b1*b2*ka**2 - 4*a2**2*b1*ka**2 - 6
*a2*b1**2*ka**2 - 6*a2*b1*b2*ka**2) + df(x1,t)*x1**2*x2**8*a1**8*( - 45*a1**2*kc**2 + 9*a1*a2*ka*kc + 18*a1*b1*ka*kc - 
b1**2*ka**2 - b1*b2*ka**2) + 4*df(x1,t)*x1**2*x2**7*y2*a1**8*b1*kc**2*( - 7*a1 - 16*a2 + 18*b2) + df(x1,t)*x1**2*x2**7*
a1**7*vm*(28*a1**2*kc**2 - 27*a1*a2*ka*kc + 64*a1*a2*kc**2 - 14*a1*b1*ka*kc - 11*a2**2*ka*kc + 2*a2*b1*ka**2 - 14*a2*b1*
ka*kc + b1**2*ka**2 + b1*b2*ka**2) + df(x1,t)*x1*x2**9*a1**9*kc*(10*a1*kc - a2*ka - 2*b1*ka) + df(x1,t)*x1*x2**8*y2*a1**
8*b1*kc**2*(8*a1 + 8*a2 - 9*b2) + 2*df(x1,t)*x1*x2**8*a1**8*kc*vm*( - 4*a1*kc + 2*a2*ka - 4*a2*kc + b1*ka) - df(x1,t)*x2
**10*a1**10*kc**2 - df(x1,t)*x2**9*y2*a1**9*b1*kc**2 + df(x1,t)*x2**9*a1**9*kc**2*vm + x1**10*y2*a1**9*b1*kc**2*(a2 - b2
) + x1**10*a1**7*a2*vm*( - a1**2*kc**2 + 2*a1*a2*ka*kc + 2*a1*b1*ka*kc - a2*b1*ka**2 - b1**2*ka**2 - b1*b2*ka**2) + 9*x1
**9*x2*y2*a1**9*b1*kc**2*( - a2 + b2) + x1**9*x2*a1**7*a2*vm*(9*a1**2*kc**2 - 16*a1*a2*ka*kc - 16*a1*b1*ka*kc + 7*a2*b1*
ka**2 + 7*b1**2*ka**2 + 7*b1*b2*ka**2) + 36*x1**8*x2**2*y2*a1**9*b1*kc**2*(a2 - b2) + x1**8*x2**2*a1**7*a2*vm*( - 36*a1
**2*kc**2 + 56*a1*a2*ka*kc + 56*a1*b1*ka*kc - 21*a2*b1*ka**2 - 21*b1**2*ka**2 - 21*b1*b2*ka**2) + 84*x1**7*x2**3*y2*a1**
9*b1*kc**2*( - a2 + b2) + 7*x1**7*x2**3*a1**7*a2*vm*(12*a1**2*kc**2 - 16*a1*a2*ka*kc - 16*a1*b1*ka*kc + 5*a2*b1*ka**2 + 
5*b1**2*ka**2 + 5*b1*b2*ka**2) + 126*x1**6*x2**4*y2*a1**9*b1*kc**2*(a2 - b2) + 7*x1**6*x2**4*a1**7*a2*vm*( - 18*a1**2*kc
**2 + 20*a1*a2*ka*kc + 20*a1*b1*ka*kc - 5*a2*b1*ka**2 - 5*b1**2*ka**2 - 5*b1*b2*ka**2) + 126*x1**5*x2**5*y2*a1**9*b1*kc
**2*( - a2 + b2) + 7*x1**5*x2**5*a1**7*a2*vm*(18*a1**2*kc**2 - 16*a1*a2*ka*kc - 16*a1*b1*ka*kc + 3*a2*b1*ka**2 + 3*b1**2
*ka**2 + 3*b1*b2*ka**2) + 84*x1**4*x2**6*y2*a1**9*b1*kc**2*(a2 - b2) + 7*x1**4*x2**6*a1**7*a2*vm*( - 12*a1**2*kc**2 + 8*
a1*a2*ka*kc + 8*a1*b1*ka*kc - a2*b1*ka**2 - b1**2*ka**2 - b1*b2*ka**2) + 36*x1**3*x2**7*y2*a1**9*b1*kc**2*( - a2 + b2) +
 x1**3*x2**7*a1**7*a2*vm*(36*a1**2*kc**2 - 16*a1*a2*ka*kc - 16*a1*b1*ka*kc + a2*b1*ka**2 + b1**2*ka**2 + b1*b2*ka**2) + 
9*x1**2*x2**8*y2*a1**9*b1*kc**2*(a2 - b2) + x1**2*x2**8*a1**8*a2*kc*vm*( - 9*a1*kc + 2*a2*ka + 2*b1*ka) + x1*x2**9*y2*a1
**9*b1*kc**2*( - a2 + b2) + x1*x2**9*a1**9*a2*kc**2*vm$

MODEL ALGEBRAICALLY OBSERVABLE$

NORMALIZED  INPUT /OUTPUT RELATION(S) $

aan_(1) := df(x2,t) - x1*a2 + x2*a2$

aan_(2) := (df(x1,t,4)*df(x1,t,2)*df(x1,t)**12*x1**3*ka*vm + 12*df(x1,t,4)*df(x1,t,2)*df(x1,t)**11*x1**4*a1*ka*vm - 12*
df(x1,t,4)*df(x1,t,2)*df(x1,t)**11*x1**3*x2*a1*ka*vm + 66*df(x1,t,4)*df(x1,t,2)*df(x1,t)**10*x1**5*a1**2*ka*vm - 132*df(
x1,t,4)*df(x1,t,2)*df(x1,t)**10*x1**4*x2*a1**2*ka*vm + 66*df(x1,t,4)*df(x1,t,2)*df(x1,t)**10*x1**3*x2**2*a1**2*ka*vm + 
220*df(x1,t,4)*df(x1,t,2)*df(x1,t)**9*x1**6*a1**3*ka*vm - 660*df(x1,t,4)*df(x1,t,2)*df(x1,t)**9*x1**5*x2*a1**3*ka*vm + 
660*df(x1,t,4)*df(x1,t,2)*df(x1,t)**9*x1**4*x2**2*a1**3*ka*vm - 220*df(x1,t,4)*df(x1,t,2)*df(x1,t)**9*x1**3*x2**3*a1**3*
ka*vm + 495*df(x1,t,4)*df(x1,t,2)*df(x1,t)**8*x1**7*a1**4*ka*vm - 1980*df(x1,t,4)*df(x1,t,2)*df(x1,t)**8*x1**6*x2*a1**4*
ka*vm + 2970*df(x1,t,4)*df(x1,t,2)*df(x1,t)**8*x1**5*x2**2*a1**4*ka*vm - 1980*df(x1,t,4)*df(x1,t,2)*df(x1,t)**8*x1**4*x2
**3*a1**4*ka*vm + 495*df(x1,t,4)*df(x1,t,2)*df(x1,t)**8*x1**3*x2**4*a1**4*ka*vm + 792*df(x1,t,4)*df(x1,t,2)*df(x1,t)**7*
x1**8*a1**5*ka*vm - 3960*df(x1,t,4)*df(x1,t,2)*df(x1,t)**7*x1**7*x2*a1**5*ka*vm + 7920*df(x1,t,4)*df(x1,t,2)*df(x1,t)**7
*x1**6*x2**2*a1**5*ka*vm - 7920*df(x1,t,4)*df(x1,t,2)*df(x1,t)**7*x1**5*x2**3*a1**5*ka*vm + 3960*df(x1,t,4)*df(x1,t,2)*
df(x1,t)**7*x1**4*x2**4*a1**5*ka*vm - 792*df(x1,t,4)*df(x1,t,2)*df(x1,t)**7*x1**3*x2**5*a1**5*ka*vm + 924*df(x1,t,4)*df(
x1,t,2)*df(x1,t)**6*x1**9*a1**6*ka*vm - 5544*df(x1,t,4)*df(x1,t,2)*df(x1,t)**6*x1**8*x2*a1**6*ka*vm + 13860*df(x1,t,4)*
df(x1,t,2)*df(x1,t)**6*x1**7*x2**2*a1**6*ka*vm - 18480*df(x1,t,4)*df(x1,t,2)*df(x1,t)**6*x1**6*x2**3*a1**6*ka*vm + 13860
*df(x1,t,4)*df(x1,t,2)*df(x1,t)**6*x1**5*x2**4*a1**6*ka*vm - 5544*df(x1,t,4)*df(x1,t,2)*df(x1,t)**6*x1**4*x2**5*a1**6*ka
*vm + 924*df(x1,t,4)*df(x1,t,2)*df(x1,t)**6*x1**3*x2**6*a1**6*ka*vm + 792*df(x1,t,4)*df(x1,t,2)*df(x1,t)**5*x1**10*a1**7
*ka*vm - 5544*df(x1,t,4)*df(x1,t,2)*df(x1,t)**5*x1**9*x2*a1**7*ka*vm + 16632*df(x1,t,4)*df(x1,t,2)*df(x1,t)**5*x1**8*x2
**2*a1**7*ka*vm - 27720*df(x1,t,4)*df(x1,t,2)*df(x1,t)**5*x1**7*x2**3*a1**7*ka*vm + 27720*df(x1,t,4)*df(x1,t,2)*df(x1,t)
**5*x1**6*x2**4*a1**7*ka*vm - 16632*df(x1,t,4)*df(x1,t,2)*df(x1,t)**5*x1**5*x2**5*a1**7*ka*vm + 5544*df(x1,t,4)*df(x1,t,
2)*df(x1,t)**5*x1**4*x2**6*a1**7*ka*vm - 792*df(x1,t,4)*df(x1,t,2)*df(x1,t)**5*x1**3*x2**7*a1**7*ka*vm + 495*df(x1,t,4)*
df(x1,t,2)*df(x1,t)**4*x1**11*a1**8*ka*vm - 3960*df(x1,t,4)*df(x1,t,2)*df(x1,t)**4*x1**10*x2*a1**8*ka*vm + 13860*df(x1,t
,4)*df(x1,t,2)*df(x1,t)**4*x1**9*x2**2*a1**8*ka*vm - 27720*df(x1,t,4)*df(x1,t,2)*df(x1,t)**4*x1**8*x2**3*a1**8*ka*vm + 
34650*df(x1,t,4)*df(x1,t,2)*df(x1,t)**4*x1**7*x2**4*a1**8*ka*vm - 27720*df(x1,t,4)*df(x1,t,2)*df(x1,t)**4*x1**6*x2**5*a1
**8*ka*vm + 13860*df(x1,t,4)*df(x1,t,2)*df(x1,t)**4*x1**5*x2**6*a1**8*ka*vm - 3960*df(x1,t,4)*df(x1,t,2)*df(x1,t)**4*x1
**4*x2**7*a1**8*ka*vm + 495*df(x1,t,4)*df(x1,t,2)*df(x1,t)**4*x1**3*x2**8*a1**8*ka*vm + 220*df(x1,t,4)*df(x1,t,2)*df(x1,
t)**3*x1**12*a1**9*ka*vm - 1980*df(x1,t,4)*df(x1,t,2)*df(x1,t)**3*x1**11*x2*a1**9*ka*vm + 7920*df(x1,t,4)*df(x1,t,2)*df(
x1,t)**3*x1**10*x2**2*a1**9*ka*vm - 18480*df(x1,t,4)*df(x1,t,2)*df(x1,t)**3*x1**9*x2**3*a1**9*ka*vm + 27720*df(x1,t,4)*
df(x1,t,2)*df(x1,t)**3*x1**8*x2**4*a1**9*ka*vm - 27720*df(x1,t,4)*df(x1,t,2)*df(x1,t)**3*x1**7*x2**5*a1**9*ka*vm + 18480
*df(x1,t,4)*df(x1,t,2)*df(x1,t)**3*x1**6*x2**6*a1**9*ka*vm - 7920*df(x1,t,4)*df(x1,t,2)*df(x1,t)**3*x1**5*x2**7*a1**9*ka
*vm + 1980*df(x1,t,4)*df(x1,t,2)*df(x1,t)**3*x1**4*x2**8*a1**9*ka*vm - 220*df(x1,t,4)*df(x1,t,2)*df(x1,t)**3*x1**3*x2**9
*a1**9*ka*vm + 66*df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**13*a1**10*ka*vm - 660*df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**12*
x2*a1**10*ka*vm + 2970*df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**11*x2**2*a1**10*ka*vm - 7920*df(x1,t,4)*df(x1,t,2)*df(x1,t)
**2*x1**10*x2**3*a1**10*ka*vm + 13860*df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**9*x2**4*a1**10*ka*vm - 16632*df(x1,t,4)*df(
x1,t,2)*df(x1,t)**2*x1**8*x2**5*a1**10*ka*vm + 13860*df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**7*x2**6*a1**10*ka*vm - 7920*
df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**6*x2**7*a1**10*ka*vm + 2970*df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**5*x2**8*a1**10*
ka*vm - 660*df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**4*x2**9*a1**10*ka*vm + 66*df(x1,t,4)*df(x1,t,2)*df(x1,t)**2*x1**3*x2**
10*a1**10*ka*vm + 12*df(x1,t,4)*df(x1,t,2)*df(x1,t)*x1**14*a1**11*ka*vm - 132*df(x1,t,4)*df(x1,t,2)*df(x1,t)*x1**13*x2*
a1**11*ka*vm + 660*df(x1,t,4)*df(x1,t,2)*df(x1,t)*x1**12*x2**2*a1**11*ka*vm - 1980*df(x1,t,4)*df(x1,t,2)*df(x1,t)*x1**11
*x2**3*a1**11*ka*vm + 3960*df(x1,t,4)*df(x1,t,2)*df(x1,t)*x1**10*x2**4*a1**11*ka*vm - 5544*df(x1,t,4)*df(x1,t,2)*df(x1,t
)*x1**9*x2**5*a1**11*ka*vm + 5544*df(x1,t,4)*df(x1,t,2)*df(x1,t)*x1**8*x2**6*a1**11*ka*vm - 3960*df(x1,t,4)*df(x1,t,2)*
df(x1,t)*x1**7*x2**7*a1**11*ka*vm + 1980*df(x1,t,4)*df(x1,t,2)*df(x1,t)*x1**6*x2**8*a1**11*ka*vm - 660*df(x1,t,4)*df(x1,
t,2)*df(x1,t)*x1**5*x2**9*a1**11*ka*vm + 132*df(x1,t,4)*df(x1,t,2)*df(x1,t)*x1**4*x2**10*a1**11*ka*vm - 12*df(x1,t,4)*df
(x1,t,2)*df(x1,t)*x1**3*x2**11*a1**11*ka*vm + df(x1,t,4)*df(x1,t,2)*x1**15*a1**12*ka*vm - 12*df(x1,t,4)*df(x1,t,2)*x1**
14*x2*a1**12*ka*vm + 66*df(x1,t,4)*df(x1,t,2)*x1**13*x2**2*a1**12*ka*vm - 220*df(x1,t,4)*df(x1,t,2)*x1**12*x2**3*a1**12*
ka*vm + 495*df(x1,t,4)*df(x1,t,2)*x1**11*x2**4*a1**12*ka*vm - 792*df(x1,t,4)*df(x1,t,2)*x1**10*x2**5*a1**12*ka*vm + 924*
df(x1,t,4)*df(x1,t,2)*x1**9*x2**6*a1**12*ka*vm - 792*df(x1,t,4)*df(x1,t,2)*x1**8*x2**7*a1**12*ka*vm + 495*df(x1,t,4)*df(
x1,t,2)*x1**7*x2**8*a1**12*ka*vm - 220*df(x1,t,4)*df(x1,t,2)*x1**6*x2**9*a1**12*ka*vm + 66*df(x1,t,4)*df(x1,t,2)*x1**5*
x2**10*a1**12*ka*vm - 12*df(x1,t,4)*df(x1,t,2)*x1**4*x2**11*a1**12*ka*vm + df(x1,t,4)*df(x1,t,2)*x1**3*x2**12*a1**12*ka*
vm - df(x1,t,4)*df(x1,t)**14*x1**2*ka*vm + df(x1,t,4)*df(x1,t)**13*x1**3*ka*vm*( - 12*a1 + b2) + 13*df(x1,t,4)*df(x1,t)
**13*x1**2*x2*a1*ka*vm + df(x1,t,4)*df(x1,t)**12*x1**4*a1*ka*vm*( - 66*a1 - a2 + 13*b2) + df(x1,t,4)*df(x1,t)**12*x1**3*
x2*a1*ka*vm*(144*a1 + a2 - 13*b2) - 78*df(x1,t,4)*df(x1,t)**12*x1**2*x2**2*a1**2*ka*vm + 2*df(x1,t,4)*df(x1,t)**11*x1**5
*a1**2*ka*vm*( - 110*a1 - 6*a2 + 39*b2) + 6*df(x1,t,4)*df(x1,t)**11*x1**4*x2*a1**2*ka*vm*(121*a1 + 4*a2 - 26*b2) + 6*df(
x1,t,4)*df(x1,t)**11*x1**3*x2**2*a1**2*ka*vm*( - 132*a1 - 2*a2 + 13*b2) + 286*df(x1,t,4)*df(x1,t)**11*x1**2*x2**3*a1**3*
ka*vm + 11*df(x1,t,4)*df(x1,t)**10*x1**6*a1**3*ka*vm*( - 45*a1 - 6*a2 + 26*b2) + 22*df(x1,t,4)*df(x1,t)**10*x1**5*x2*a1
**3*ka*vm*(100*a1 + 9*a2 - 39*b2) + 66*df(x1,t,4)*df(x1,t)**10*x1**4*x2**2*a1**3*ka*vm*( - 55*a1 - 3*a2 + 13*b2) + 22*df
(x1,t,4)*df(x1,t)**10*x1**3*x2**3*a1**3*ka*vm*(120*a1 + 3*a2 - 13*b2) - 715*df(x1,t,4)*df(x1,t)**10*x1**2*x2**4*a1**4*ka
*vm + 11*df(x1,t,4)*df(x1,t)**9*x1**7*a1**4*ka*vm*( - 72*a1 - 20*a2 + 65*b2) + 55*df(x1,t,4)*df(x1,t)**9*x1**6*x2*a1**4*
ka*vm*(81*a1 + 16*a2 - 52*b2) + 330*df(x1,t,4)*df(x1,t)**9*x1**5*x2**2*a1**4*ka*vm*( - 30*a1 - 4*a2 + 13*b2) + 110*df(x1
,t,4)*df(x1,t)**9*x1**4*x2**3*a1**4*ka*vm*(99*a1 + 8*a2 - 26*b2) + 55*df(x1,t,4)*df(x1,t)**9*x1**3*x2**4*a1**4*ka*vm*( -
 108*a1 - 4*a2 + 13*b2) + 1287*df(x1,t,4)*df(x1,t)**9*x1**2*x2**5*a1**5*ka*vm + 33*df(x1,t,4)*df(x1,t)**8*x1**8*a1**5*ka
*vm*( - 28*a1 - 15*a2 + 39*b2) + 99*df(x1,t,4)*df(x1,t)**8*x1**7*x2*a1**5*ka*vm*(64*a1 + 25*a2 - 65*b2) + 990*df(x1,t,4)
*df(x1,t)**8*x1**6*x2**2*a1**5*ka*vm*( - 18*a1 - 5*a2 + 13*b2) + 330*df(x1,t,4)*df(x1,t)**8*x1**5*x2**3*a1**5*ka*vm*(80*
a1 + 15*a2 - 39*b2) + 495*df(x1,t,4)*df(x1,t)**8*x1**4*x2**4*a1**5*ka*vm*( - 44*a1 - 5*a2 + 13*b2) + 99*df(x1,t,4)*df(x1
,t)**8*x1**3*x2**5*a1**5*ka*vm*(96*a1 + 5*a2 - 13*b2) - 1716*df(x1,t,4)*df(x1,t)**8*x1**2*x2**6*a1**6*ka*vm + 132*df(x1,
t,4)*df(x1,t)**7*x1**9*a1**6*ka*vm*( - 6*a1 - 6*a2 + 13*b2) + 132*df(x1,t,4)*df(x1,t)**7*x1**8*x2*a1**6*ka*vm*(49*a1 + 
36*a2 - 78*b2) + 396*df(x1,t,4)*df(x1,t)**7*x1**7*x2**2*a1**6*ka*vm*( - 56*a1 - 30*a2 + 65*b2) + 660*df(x1,t,4)*df(x1,t)
**7*x1**6*x2**3*a1**6*ka*vm*(63*a1 + 24*a2 - 52*b2) + 660*df(x1,t,4)*df(x1,t)**7*x1**5*x2**4*a1**6*ka*vm*( - 70*a1 - 18*
a2 + 39*b2) + 396*df(x1,t,4)*df(x1,t)**7*x1**4*x2**5*a1**6*ka*vm*(77*a1 + 12*a2 - 26*b2) + 132*df(x1,t,4)*df(x1,t)**7*x1
**3*x2**6*a1**6*ka*vm*( - 84*a1 - 6*a2 + 13*b2) + 1716*df(x1,t,4)*df(x1,t)**7*x1**2*x2**7*a1**7*ka*vm + 33*df(x1,t,4)*df
(x1,t)**6*x1**10*a1**7*ka*vm*( - 15*a1 - 28*a2 + 52*b2) + 132*df(x1,t,4)*df(x1,t)**6*x1**9*x2*a1**7*ka*vm*(36*a1 + 49*a2
 - 91*b2) + 2772*df(x1,t,4)*df(x1,t)**6*x1**8*x2**2*a1**7*ka*vm*( - 7*a1 - 7*a2 + 13*b2) + 924*df(x1,t,4)*df(x1,t)**6*x1
**7*x2**3*a1**7*ka*vm*(48*a1 + 35*a2 - 65*b2) + 2310*df(x1,t,4)*df(x1,t)**6*x1**6*x2**4*a1**7*ka*vm*( - 27*a1 - 14*a2 + 
26*b2) + 2772*df(x1,t,4)*df(x1,t)**6*x1**5*x2**5*a1**7*ka*vm*(20*a1 + 7*a2 - 13*b2) + 924*df(x1,t,4)*df(x1,t)**6*x1**4*
x2**6*a1**7*ka*vm*( - 33*a1 - 7*a2 + 13*b2) + 132*df(x1,t,4)*df(x1,t)**6*x1**3*x2**7*a1**7*ka*vm*(72*a1 + 7*a2 - 13*b2) 
- 1287*df(x1,t,4)*df(x1,t)**6*x1**2*x2**8*a1**8*ka*vm + 11*df(x1,t,4)*df(x1,t)**5*x1**11*a1**8*ka*vm*( - 20*a1 - 72*a2 +
 117*b2) + 99*df(x1,t,4)*df(x1,t)**5*x1**10*x2*a1**8*ka*vm*(25*a1 + 64*a2 - 104*b2) + 396*df(x1,t,4)*df(x1,t)**5*x1**9*
x2**2*a1**8*ka*vm*( - 30*a1 - 56*a2 + 91*b2) + 924*df(x1,t,4)*df(x1,t)**5*x1**8*x2**3*a1**8*ka*vm*(35*a1 + 48*a2 - 78*b2
) + 6930*df(x1,t,4)*df(x1,t)**5*x1**7*x2**4*a1**8*ka*vm*( - 8*a1 - 8*a2 + 13*b2) + 1386*df(x1,t,4)*df(x1,t)**5*x1**6*x2
**5*a1**8*ka*vm*(45*a1 + 32*a2 - 52*b2) + 924*df(x1,t,4)*df(x1,t)**5*x1**5*x2**6*a1**8*ka*vm*( - 50*a1 - 24*a2 + 39*b2) 
+ 396*df(x1,t,4)*df(x1,t)**5*x1**4*x2**7*a1**8*ka*vm*(55*a1 + 16*a2 - 26*b2) + 99*df(x1,t,4)*df(x1,t)**5*x1**3*x2**8*a1
**8*ka*vm*( - 60*a1 - 8*a2 + 13*b2) + 715*df(x1,t,4)*df(x1,t)**5*x1**2*x2**9*a1**9*ka*vm + 11*df(x1,t,4)*df(x1,t)**4*x1
**12*a1**9*ka*vm*( - 6*a1 - 45*a2 + 65*b2) + 55*df(x1,t,4)*df(x1,t)**4*x1**11*x2*a1**9*ka*vm*(16*a1 + 81*a2 - 117*b2) + 
990*df(x1,t,4)*df(x1,t)**4*x1**10*x2**2*a1**9*ka*vm*( - 5*a1 - 18*a2 + 26*b2) + 660*df(x1,t,4)*df(x1,t)**4*x1**9*x2**3*
a1**9*ka*vm*(24*a1 + 63*a2 - 91*b2) + 2310*df(x1,t,4)*df(x1,t)**4*x1**8*x2**4*a1**9*ka*vm*( - 14*a1 - 27*a2 + 39*b2) + 
1386*df(x1,t,4)*df(x1,t)**4*x1**7*x2**5*a1**9*ka*vm*(32*a1 + 45*a2 - 65*b2) + 4620*df(x1,t,4)*df(x1,t)**4*x1**6*x2**6*a1
**9*ka*vm*( - 9*a1 - 9*a2 + 13*b2) + 660*df(x1,t,4)*df(x1,t)**4*x1**5*x2**7*a1**9*ka*vm*(40*a1 + 27*a2 - 39*b2) + 495*df
(x1,t,4)*df(x1,t)**4*x1**4*x2**8*a1**9*ka*vm*( - 22*a1 - 9*a2 + 13*b2) + 55*df(x1,t,4)*df(x1,t)**4*x1**3*x2**9*a1**9*ka*
vm*(48*a1 + 9*a2 - 13*b2) - 286*df(x1,t,4)*df(x1,t)**4*x1**2*x2**10*a1**10*ka*vm + 2*df(x1,t,4)*df(x1,t)**3*x1**13*a1**
10*ka*vm*( - 6*a1 - 110*a2 + 143*b2) + 22*df(x1,t,4)*df(x1,t)**3*x1**12*x2*a1**10*ka*vm*(9*a1 + 100*a2 - 130*b2) + 330*
df(x1,t,4)*df(x1,t)**3*x1**11*x2**2*a1**10*ka*vm*( - 4*a1 - 30*a2 + 39*b2) + 330*df(x1,t,4)*df(x1,t)**3*x1**10*x2**3*a1
**10*ka*vm*(15*a1 + 80*a2 - 104*b2) + 660*df(x1,t,4)*df(x1,t)**3*x1**9*x2**4*a1**10*ka*vm*( - 18*a1 - 70*a2 + 91*b2) + 
2772*df(x1,t,4)*df(x1,t)**3*x1**8*x2**5*a1**10*ka*vm*(7*a1 + 20*a2 - 26*b2) + 924*df(x1,t,4)*df(x1,t)**3*x1**7*x2**6*a1
**10*ka*vm*( - 24*a1 - 50*a2 + 65*b2) + 660*df(x1,t,4)*df(x1,t)**3*x1**6*x2**7*a1**10*ka*vm*(27*a1 + 40*a2 - 52*b2) + 
990*df(x1,t,4)*df(x1,t)**3*x1**5*x2**8*a1**10*ka*vm*( - 10*a1 - 10*a2 + 13*b2) + 110*df(x1,t,4)*df(x1,t)**3*x1**4*x2**9*
a1**10*ka*vm*(33*a1 + 20*a2 - 26*b2) + 22*df(x1,t,4)*df(x1,t)**3*x1**3*x2**10*a1**10*ka*vm*( - 36*a1 - 10*a2 + 13*b2) + 
78*df(x1,t,4)*df(x1,t)**3*x1**2*x2**11*a1**11*ka*vm + df(x1,t,4)*df(x1,t)**2*x1**14*a1**11*ka*vm*( - a1 - 66*a2 + 78*b2)
 + 6*df(x1,t,4)*df(x1,t)**2*x1**13*x2*a1**11*ka*vm*(4*a1 + 121*a2 - 143*b2) + 66*df(x1,t,4)*df(x1,t)**2*x1**12*x2**2*a1
**11*ka*vm*( - 3*a1 - 55*a2 + 65*b2) + 110*df(x1,t,4)*df(x1,t)**2*x1**11*x2**3*a1**11*ka*vm*(8*a1 + 99*a2 - 117*b2) + 
495*df(x1,t,4)*df(x1,t)**2*x1**10*x2**4*a1**11*ka*vm*( - 5*a1 - 44*a2 + 52*b2) + 396*df(x1,t,4)*df(x1,t)**2*x1**9*x2**5*
a1**11*ka*vm*(12*a1 + 77*a2 - 91*b2) + 924*df(x1,t,4)*df(x1,t)**2*x1**8*x2**6*a1**11*ka*vm*( - 7*a1 - 33*a2 + 39*b2) + 
396*df(x1,t,4)*df(x1,t)**2*x1**7*x2**7*a1**11*ka*vm*(16*a1 + 55*a2 - 65*b2) + 495*df(x1,t,4)*df(x1,t)**2*x1**6*x2**8*a1
**11*ka*vm*( - 9*a1 - 22*a2 + 26*b2) + 110*df(x1,t,4)*df(x1,t)**2*x1**5*x2**9*a1**11*ka*vm*(20*a1 + 33*a2 - 39*b2) + 66*
df(x1,t,4)*df(x1,t)**2*x1**4*x2**10*a1**11*ka*vm*( - 11*a1 - 11*a2 + 13*b2) + 6*df(x1,t,4)*df(x1,t)**2*x1**3*x2**11*a1**
11*ka*vm*(24*a1 + 11*a2 - 13*b2) - 13*df(x1,t,4)*df(x1,t)**2*x1**2*x2**12*a1**12*ka*vm + df(x1,t,4)*df(x1,t)*x1**15*a1**
12*ka*vm*( - 12*a2 + 13*b2) + df(x1,t,4)*df(x1,t)*x1**14*x2*a1**12*ka*vm*(a1 + 144*a2 - 156*b2) + 6*df(x1,t,4)*df(x1,t)*
x1**13*x2**2*a1**12*ka*vm*( - 2*a1 - 132*a2 + 143*b2) + 22*df(x1,t,4)*df(x1,t)*x1**12*x2**3*a1**12*ka*vm*(3*a1 + 120*a2 
- 130*b2) + 55*df(x1,t,4)*df(x1,t)*x1**11*x2**4*a1**12*ka*vm*( - 4*a1 - 108*a2 + 117*b2) + 99*df(x1,t,4)*df(x1,t)*x1**10
*x2**5*a1**12*ka*vm*(5*a1 + 96*a2 - 104*b2) + 132*df(x1,t,4)*df(x1,t)*x1**9*x2**6*a1**12*ka*vm*( - 6*a1 - 84*a2 + 91*b2)
 + 132*df(x1,t,4)*df(x1,t)*x1**8*x2**7*a1**12*ka*vm*(7*a1 + 72*a2 - 78*b2) + 99*df(x1,t,4)*df(x1,t)*x1**7*x2**8*a1**12*
ka*vm*( - 8*a1 - 60*a2 + 65*b2) + 55*df(x1,t,4)*df(x1,t)*x1**6*x2**9*a1**12*ka*vm*(9*a1 + 48*a2 - 52*b2) + 22*df(x1,t,4)
*df(x1,t)*x1**5*x2**10*a1**12*ka*vm*( - 10*a1 - 36*a2 + 39*b2) + 6*df(x1,t,4)*df(x1,t)*x1**4*x2**11*a1**12*ka*vm*(11*a1 
+ 24*a2 - 26*b2) + df(x1,t,4)*df(x1,t)*x1**3*x2**12*a1**12*ka*vm*( - 12*a1 - 12*a2 + 13*b2) + df(x1,t,4)*df(x1,t)*x1**2*
x2**13*a1**13*ka*vm + df(x1,t,4)*x1**16*a1**13*ka*vm*( - a2 + b2) + 13*df(x1,t,4)*x1**15*x2*a1**13*ka*vm*(a2 - b2) + 78*
df(x1,t,4)*x1**14*x2**2*a1**13*ka*vm*( - a2 + b2) + 286*df(x1,t,4)*x1**13*x2**3*a1**13*ka*vm*(a2 - b2) + 715*df(x1,t,4)*
x1**12*x2**4*a1**13*ka*vm*( - a2 + b2) + 1287*df(x1,t,4)*x1**11*x2**5*a1**13*ka*vm*(a2 - b2) + 1716*df(x1,t,4)*x1**10*x2
**6*a1**13*ka*vm*( - a2 + b2) + 1716*df(x1,t,4)*x1**9*x2**7*a1**13*ka*vm*(a2 - b2) + 1287*df(x1,t,4)*x1**8*x2**8*a1**13*
ka*vm*( - a2 + b2) + 715*df(x1,t,4)*x1**7*x2**9*a1**13*ka*vm*(a2 - b2) + 286*df(x1,t,4)*x1**6*x2**10*a1**13*ka*vm*( - a2
 + b2) + 78*df(x1,t,4)*x1**5*x2**11*a1**13*ka*vm*(a2 - b2) + 13*df(x1,t,4)*x1**4*x2**12*a1**13*ka*vm*( - a2 + b2) + df(
x1,t,4)*x1**3*x2**13*a1**13*ka*vm*(a2 - b2) - df(x1,t,3)**2*df(x1,t)**12*x1**3*ka*vm - 12*df(x1,t,3)**2*df(x1,t)**11*x1
**4*a1*ka*vm + 12*df(x1,t,3)**2*df(x1,t)**11*x1**3*x2*a1*ka*vm - 66*df(x1,t,3)**2*df(x1,t)**10*x1**5*a1**2*ka*vm + 132*
df(x1,t,3)**2*df(x1,t)**10*x1**4*x2*a1**2*ka*vm - 66*df(x1,t,3)**2*df(x1,t)**10*x1**3*x2**2*a1**2*ka*vm - 220*df(x1,t,3)
**2*df(x1,t)**9*x1**6*a1**3*ka*vm + 660*df(x1,t,3)**2*df(x1,t)**9*x1**5*x2*a1**3*ka*vm - 660*df(x1,t,3)**2*df(x1,t)**9*
x1**4*x2**2*a1**3*ka*vm + 220*df(x1,t,3)**2*df(x1,t)**9*x1**3*x2**3*a1**3*ka*vm - 495*df(x1,t,3)**2*df(x1,t)**8*x1**7*a1
**4*ka*vm + 1980*df(x1,t,3)**2*df(x1,t)**8*x1**6*x2*a1**4*ka*vm - 2970*df(x1,t,3)**2*df(x1,t)**8*x1**5*x2**2*a1**4*ka*vm
 + 1980*df(x1,t,3)**2*df(x1,t)**8*x1**4*x2**3*a1**4*ka*vm - 495*df(x1,t,3)**2*df(x1,t)**8*x1**3*x2**4*a1**4*ka*vm - 792*
df(x1,t,3)**2*df(x1,t)**7*x1**8*a1**5*ka*vm + 3960*df(x1,t,3)**2*df(x1,t)**7*x1**7*x2*a1**5*ka*vm - 7920*df(x1,t,3)**2*
df(x1,t)**7*x1**6*x2**2*a1**5*ka*vm + 7920*df(x1,t,3)**2*df(x1,t)**7*x1**5*x2**3*a1**5*ka*vm - 3960*df(x1,t,3)**2*df(x1,
t)**7*x1**4*x2**4*a1**5*ka*vm + 792*df(x1,t,3)**2*df(x1,t)**7*x1**3*x2**5*a1**5*ka*vm - 924*df(x1,t,3)**2*df(x1,t)**6*x1
**9*a1**6*ka*vm + 5544*df(x1,t,3)**2*df(x1,t)**6*x1**8*x2*a1**6*ka*vm - 13860*df(x1,t,3)**2*df(x1,t)**6*x1**7*x2**2*a1**
6*ka*vm + 18480*df(x1,t,3)**2*df(x1,t)**6*x1**6*x2**3*a1**6*ka*vm - 13860*df(x1,t,3)**2*df(x1,t)**6*x1**5*x2**4*a1**6*ka
*vm + 5544*df(x1,t,3)**2*df(x1,t)**6*x1**4*x2**5*a1**6*ka*vm - 924*df(x1,t,3)**2*df(x1,t)**6*x1**3*x2**6*a1**6*ka*vm - 
792*df(x1,t,3)**2*df(x1,t)**5*x1**10*a1**7*ka*vm + 5544*df(x1,t,3)**2*df(x1,t)**5*x1**9*x2*a1**7*ka*vm - 16632*df(x1,t,3
)**2*df(x1,t)**5*x1**8*x2**2*a1**7*ka*vm + 27720*df(x1,t,3)**2*df(x1,t)**5*x1**7*x2**3*a1**7*ka*vm - 27720*df(x1,t,3)**2
*df(x1,t)**5*x1**6*x2**4*a1**7*ka*vm + 16632*df(x1,t,3)**2*df(x1,t)**5*x1**5*x2**5*a1**7*ka*vm - 5544*df(x1,t,3)**2*df(
x1,t)**5*x1**4*x2**6*a1**7*ka*vm + 792*df(x1,t,3)**2*df(x1,t)**5*x1**3*x2**7*a1**7*ka*vm - 495*df(x1,t,3)**2*df(x1,t)**4
*x1**11*a1**8*ka*vm + 3960*df(x1,t,3)**2*df(x1,t)**4*x1**10*x2*a1**8*ka*vm - 13860*df(x1,t,3)**2*df(x1,t)**4*x1**9*x2**2
*a1**8*ka*vm + 27720*df(x1,t,3)**2*df(x1,t)**4*x1**8*x2**3*a1**8*ka*vm - 34650*df(x1,t,3)**2*df(x1,t)**4*x1**7*x2**4*a1
**8*ka*vm + 27720*df(x1,t,3)**2*df(x1,t)**4*x1**6*x2**5*a1**8*ka*vm - 13860*df(x1,t,3)**2*df(x1,t)**4*x1**5*x2**6*a1**8*
ka*vm + 3960*df(x1,t,3)**2*df(x1,t)**4*x1**4*x2**7*a1**8*ka*vm - 495*df(x1,t,3)**2*df(x1,t)**4*x1**3*x2**8*a1**8*ka*vm -
 220*df(x1,t,3)**2*df(x1,t)**3*x1**12*a1**9*ka*vm + 1980*df(x1,t,3)**2*df(x1,t)**3*x1**11*x2*a1**9*ka*vm - 7920*df(x1,t,
3)**2*df(x1,t)**3*x1**10*x2**2*a1**9*ka*vm + 18480*df(x1,t,3)**2*df(x1,t)**3*x1**9*x2**3*a1**9*ka*vm - 27720*df(x1,t,3)
**2*df(x1,t)**3*x1**8*x2**4*a1**9*ka*vm + 27720*df(x1,t,3)**2*df(x1,t)**3*x1**7*x2**5*a1**9*ka*vm - 18480*df(x1,t,3)**2*
df(x1,t)**3*x1**6*x2**6*a1**9*ka*vm + 7920*df(x1,t,3)**2*df(x1,t)**3*x1**5*x2**7*a1**9*ka*vm - 1980*df(x1,t,3)**2*df(x1,
t)**3*x1**4*x2**8*a1**9*ka*vm + 220*df(x1,t,3)**2*df(x1,t)**3*x1**3*x2**9*a1**9*ka*vm - 66*df(x1,t,3)**2*df(x1,t)**2*x1
**13*a1**10*ka*vm + 660*df(x1,t,3)**2*df(x1,t)**2*x1**12*x2*a1**10*ka*vm - 2970*df(x1,t,3)**2*df(x1,t)**2*x1**11*x2**2*
a1**10*ka*vm + 7920*df(x1,t,3)**2*df(x1,t)**2*x1**10*x2**3*a1**10*ka*vm - 13860*df(x1,t,3)**2*df(x1,t)**2*x1**9*x2**4*a1
**10*ka*vm + 16632*df(x1,t,3)**2*df(x1,t)**2*x1**8*x2**5*a1**10*ka*vm - 13860*df(x1,t,3)**2*df(x1,t)**2*x1**7*x2**6*a1**
10*ka*vm + 7920*df(x1,t,3)**2*df(x1,t)**2*x1**6*x2**7*a1**10*ka*vm - 2970*df(x1,t,3)**2*df(x1,t)**2*x1**5*x2**8*a1**10*
ka*vm + 660*df(x1,t,3)**2*df(x1,t)**2*x1**4*x2**9*a1**10*ka*vm - 66*df(x1,t,3)**2*df(x1,t)**2*x1**3*x2**10*a1**10*ka*vm 
- 12*df(x1,t,3)**2*df(x1,t)*x1**14*a1**11*ka*vm + 132*df(x1,t,3)**2*df(x1,t)*x1**13*x2*a1**11*ka*vm - 660*df(x1,t,3)**2*
df(x1,t)*x1**12*x2**2*a1**11*ka*vm + 1980*df(x1,t,3)**2*df(x1,t)*x1**11*x2**3*a1**11*ka*vm - 3960*df(x1,t,3)**2*df(x1,t)
*x1**10*x2**4*a1**11*ka*vm + 5544*df(x1,t,3)**2*df(x1,t)*x1**9*x2**5*a1**11*ka*vm - 5544*df(x1,t,3)**2*df(x1,t)*x1**8*x2
**6*a1**11*ka*vm + 3960*df(x1,t,3)**2*df(x1,t)*x1**7*x2**7*a1**11*ka*vm - 1980*df(x1,t,3)**2*df(x1,t)*x1**6*x2**8*a1**11
*ka*vm + 660*df(x1,t,3)**2*df(x1,t)*x1**5*x2**9*a1**11*ka*vm - 132*df(x1,t,3)**2*df(x1,t)*x1**4*x2**10*a1**11*ka*vm + 12
*df(x1,t,3)**2*df(x1,t)*x1**3*x2**11*a1**11*ka*vm - df(x1,t,3)**2*x1**15*a1**12*ka*vm + 12*df(x1,t,3)**2*x1**14*x2*a1**
12*ka*vm - 66*df(x1,t,3)**2*x1**13*x2**2*a1**12*ka*vm + 220*df(x1,t,3)**2*x1**12*x2**3*a1**12*ka*vm - 495*df(x1,t,3)**2*
x1**11*x2**4*a1**12*ka*vm + 792*df(x1,t,3)**2*x1**10*x2**5*a1**12*ka*vm - 924*df(x1,t,3)**2*x1**9*x2**6*a1**12*ka*vm + 
792*df(x1,t,3)**2*x1**8*x2**7*a1**12*ka*vm - 495*df(x1,t,3)**2*x1**7*x2**8*a1**12*ka*vm + 220*df(x1,t,3)**2*x1**6*x2**9*
a1**12*ka*vm - 66*df(x1,t,3)**2*x1**5*x2**10*a1**12*ka*vm + 12*df(x1,t,3)**2*x1**4*x2**11*a1**12*ka*vm - df(x1,t,3)**2*
x1**3*x2**12*a1**12*ka*vm - 4*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**11*x1**3*ka*vm - 44*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**
10*x1**4*a1*ka*vm + 44*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**10*x1**3*x2*a1*ka*vm - 220*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**
9*x1**5*a1**2*ka*vm + 440*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**9*x1**4*x2*a1**2*ka*vm - 220*df(x1,t,3)*df(x1,t,2)**2*df(x1
,t)**9*x1**3*x2**2*a1**2*ka*vm - 660*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**8*x1**6*a1**3*ka*vm + 1980*df(x1,t,3)*df(x1,t,2)
**2*df(x1,t)**8*x1**5*x2*a1**3*ka*vm - 1980*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**8*x1**4*x2**2*a1**3*ka*vm + 660*df(x1,t,3
)*df(x1,t,2)**2*df(x1,t)**8*x1**3*x2**3*a1**3*ka*vm - 1320*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**7*x1**7*a1**4*ka*vm + 5280
*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**7*x1**6*x2*a1**4*ka*vm - 7920*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**7*x1**5*x2**2*a1**4
*ka*vm + 5280*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**7*x1**4*x2**3*a1**4*ka*vm - 1320*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**7*
x1**3*x2**4*a1**4*ka*vm - 1848*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**6*x1**8*a1**5*ka*vm + 9240*df(x1,t,3)*df(x1,t,2)**2*df
(x1,t)**6*x1**7*x2*a1**5*ka*vm - 18480*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**6*x1**6*x2**2*a1**5*ka*vm + 18480*df(x1,t,3)*
df(x1,t,2)**2*df(x1,t)**6*x1**5*x2**3*a1**5*ka*vm - 9240*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**6*x1**4*x2**4*a1**5*ka*vm + 
1848*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**6*x1**3*x2**5*a1**5*ka*vm - 1848*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**5*x1**9*a1**
6*ka*vm + 11088*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**5*x1**8*x2*a1**6*ka*vm - 27720*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**5*
x1**7*x2**2*a1**6*ka*vm + 36960*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**5*x1**6*x2**3*a1**6*ka*vm - 27720*df(x1,t,3)*df(x1,t,
2)**2*df(x1,t)**5*x1**5*x2**4*a1**6*ka*vm + 11088*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**5*x1**4*x2**5*a1**6*ka*vm - 1848*df
(x1,t,3)*df(x1,t,2)**2*df(x1,t)**5*x1**3*x2**6*a1**6*ka*vm - 1320*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**4*x1**10*a1**7*ka*
vm + 9240*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**4*x1**9*x2*a1**7*ka*vm - 27720*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**4*x1**8*
x2**2*a1**7*ka*vm + 46200*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**4*x1**7*x2**3*a1**7*ka*vm - 46200*df(x1,t,3)*df(x1,t,2)**2*
df(x1,t)**4*x1**6*x2**4*a1**7*ka*vm + 27720*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**4*x1**5*x2**5*a1**7*ka*vm - 9240*df(x1,t,
3)*df(x1,t,2)**2*df(x1,t)**4*x1**4*x2**6*a1**7*ka*vm + 1320*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**4*x1**3*x2**7*a1**7*ka*vm
 - 660*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**3*x1**11*a1**8*ka*vm + 5280*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**3*x1**10*x2*a1
**8*ka*vm - 18480*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**3*x1**9*x2**2*a1**8*ka*vm + 36960*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)
**3*x1**8*x2**3*a1**8*ka*vm - 46200*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**3*x1**7*x2**4*a1**8*ka*vm + 36960*df(x1,t,3)*df(
x1,t,2)**2*df(x1,t)**3*x1**6*x2**5*a1**8*ka*vm - 18480*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**3*x1**5*x2**6*a1**8*ka*vm + 
5280*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**3*x1**4*x2**7*a1**8*ka*vm - 660*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**3*x1**3*x2**8
*a1**8*ka*vm - 220*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*x1**12*a1**9*ka*vm + 1980*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*
x1**11*x2*a1**9*ka*vm - 7920*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*x1**10*x2**2*a1**9*ka*vm + 18480*df(x1,t,3)*df(x1,t,2)
**2*df(x1,t)**2*x1**9*x2**3*a1**9*ka*vm - 27720*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*x1**8*x2**4*a1**9*ka*vm + 27720*df(
x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*x1**7*x2**5*a1**9*ka*vm - 18480*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*x1**6*x2**6*a1**9
*ka*vm + 7920*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*x1**5*x2**7*a1**9*ka*vm - 1980*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*
x1**4*x2**8*a1**9*ka*vm + 220*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)**2*x1**3*x2**9*a1**9*ka*vm - 44*df(x1,t,3)*df(x1,t,2)**2
*df(x1,t)*x1**13*a1**10*ka*vm + 440*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)*x1**12*x2*a1**10*ka*vm - 1980*df(x1,t,3)*df(x1,t,2
)**2*df(x1,t)*x1**11*x2**2*a1**10*ka*vm + 5280*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)*x1**10*x2**3*a1**10*ka*vm - 9240*df(x1,
t,3)*df(x1,t,2)**2*df(x1,t)*x1**9*x2**4*a1**10*ka*vm + 11088*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)*x1**8*x2**5*a1**10*ka*vm 
- 9240*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)*x1**7*x2**6*a1**10*ka*vm + 5280*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)*x1**6*x2**7*
a1**10*ka*vm - 1980*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)*x1**5*x2**8*a1**10*ka*vm + 440*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)*
x1**4*x2**9*a1**10*ka*vm - 44*df(x1,t,3)*df(x1,t,2)**2*df(x1,t)*x1**3*x2**10*a1**10*ka*vm - 4*df(x1,t,3)*df(x1,t,2)**2*
x1**14*a1**11*ka*vm + 44*df(x1,t,3)*df(x1,t,2)**2*x1**13*x2*a1**11*ka*vm - 220*df(x1,t,3)*df(x1,t,2)**2*x1**12*x2**2*a1
**11*ka*vm + 660*df(x1,t,3)*df(x1,t,2)**2*x1**11*x2**3*a1**11*ka*vm - 1320*df(x1,t,3)*df(x1,t,2)**2*x1**10*x2**4*a1**11*
ka*vm + 1848*df(x1,t,3)*df(x1,t,2)**2*x1**9*x2**5*a1**11*ka*vm - 1848*df(x1,t,3)*df(x1,t,2)**2*x1**8*x2**6*a1**11*ka*vm 
+ 1320*df(x1,t,3)*df(x1,t,2)**2*x1**7*x2**7*a1**11*ka*vm - 660*df(x1,t,3)*df(x1,t,2)**2*x1**6*x2**8*a1**11*ka*vm + 220*
df(x1,t,3)*df(x1,t,2)**2*x1**5*x2**9*a1**11*ka*vm - 44*df(x1,t,3)*df(x1,t,2)**2*x1**4*x2**10*a1**11*ka*vm + 4*df(x1,t,3)
*df(x1,t,2)**2*x1**3*x2**11*a1**11*ka*vm + 10*df(x1,t,3)*df(x1,t,2)*df(x1,t)**13*x1**2*ka*vm + 7*df(x1,t,3)*df(x1,t,2)*
df(x1,t)**12*x1**3*ka*vm*(16*a1 - b2) - 121*df(x1,t,3)*df(x1,t,2)*df(x1,t)**12*x1**2*x2*a1*ka*vm + 4*df(x1,t,3)*df(x1,t,
2)*df(x1,t)**11*x1**4*a1*ka*vm*(143*a1 + 2*a2 - 21*b2) + 4*df(x1,t,3)*df(x1,t,2)*df(x1,t)**11*x1**3*x2*a1*ka*vm*( - 311*
a1 - 2*a2 + 21*b2) + 672*df(x1,t,3)*df(x1,t,2)*df(x1,t)**11*x1**2*x2**2*a1**2*ka*vm + 22*df(x1,t,3)*df(x1,t,2)*df(x1,t)
**10*x1**5*a1**2*ka*vm*(80*a1 + 4*a2 - 21*b2) + 22*df(x1,t,3)*df(x1,t,2)*df(x1,t)**10*x1**4*x2*a1**2*ka*vm*( - 263*a1 - 
8*a2 + 42*b2) + 22*df(x1,t,3)*df(x1,t,2)*df(x1,t)**10*x1**3*x2**2*a1**2*ka*vm*(286*a1 + 4*a2 - 21*b2) - 2266*df(x1,t,3)*
df(x1,t,2)*df(x1,t)**10*x1**2*x2**3*a1**3*ka*vm + 110*df(x1,t,3)*df(x1,t,2)*df(x1,t)**9*x1**6*a1**3*ka*vm*(33*a1 + 4*a2 
- 14*b2) + 220*df(x1,t,3)*df(x1,t,2)*df(x1,t)**9*x1**5*x2*a1**3*ka*vm*( - 73*a1 - 6*a2 + 21*b2) + 660*df(x1,t,3)*df(x1,t
,2)*df(x1,t)**9*x1**4*x2**2*a1**3*ka*vm*(40*a1 + 2*a2 - 7*b2) + 220*df(x1,t,3)*df(x1,t,2)*df(x1,t)**9*x1**3*x2**3*a1**3*
ka*vm*( - 87*a1 - 2*a2 + 7*b2) + 5170*df(x1,t,3)*df(x1,t,2)*df(x1,t)**9*x1**2*x2**4*a1**4*ka*vm + 165*df(x1,t,3)*df(x1,t
,2)*df(x1,t)**8*x1**7*a1**4*ka*vm*(32*a1 + 8*a2 - 21*b2) + 165*df(x1,t,3)*df(x1,t,2)*df(x1,t)**8*x1**6*x2*a1**4*ka*vm*( 
- 179*a1 - 32*a2 + 84*b2) + 990*df(x1,t,3)*df(x1,t,2)*df(x1,t)**8*x1**5*x2**2*a1**4*ka*vm*(66*a1 + 8*a2 - 21*b2) + 330*
df(x1,t,3)*df(x1,t,2)*df(x1,t)**8*x1**4*x2**3*a1**4*ka*vm*( - 217*a1 - 16*a2 + 42*b2) + 165*df(x1,t,3)*df(x1,t,2)*df(x1,
t)**8*x1**3*x2**4*a1**4*ka*vm*(236*a1 + 8*a2 - 21*b2) - 8415*df(x1,t,3)*df(x1,t,2)*df(x1,t)**8*x1**2*x2**5*a1**5*ka*vm +
 264*df(x1,t,3)*df(x1,t,2)*df(x1,t)**7*x1**8*a1**5*ka*vm*(21*a1 + 10*a2 - 21*b2) + 264*df(x1,t,3)*df(x1,t,2)*df(x1,t)**7
*x1**7*x2*a1**5*ka*vm*( - 143*a1 - 50*a2 + 105*b2) + 2640*df(x1,t,3)*df(x1,t,2)*df(x1,t)**7*x1**6*x2**2*a1**5*ka*vm*(40*
a1 + 10*a2 - 21*b2) + 2640*df(x1,t,3)*df(x1,t,2)*df(x1,t)**7*x1**5*x2**3*a1**5*ka*vm*( - 59*a1 - 10*a2 + 21*b2) + 1320*
df(x1,t,3)*df(x1,t,2)*df(x1,t)**7*x1**4*x2**4*a1**5*ka*vm*(97*a1 + 10*a2 - 21*b2) + 264*df(x1,t,3)*df(x1,t,2)*df(x1,t)**
7*x1**3*x2**5*a1**5*ka*vm*( - 211*a1 - 10*a2 + 21*b2) + 10032*df(x1,t,3)*df(x1,t,2)*df(x1,t)**7*x1**2*x2**6*a1**6*ka*vm 
+ 132*df(x1,t,3)*df(x1,t,2)*df(x1,t)**6*x1**9*a1**6*ka*vm*(32*a1 + 28*a2 - 49*b2) + 924*df(x1,t,3)*df(x1,t,2)*df(x1,t)**
6*x1**8*x2*a1**6*ka*vm*( - 37*a1 - 24*a2 + 42*b2) + 2772*df(x1,t,3)*df(x1,t,2)*df(x1,t)**6*x1**7*x2**2*a1**6*ka*vm*(42*
a1 + 20*a2 - 35*b2) + 4620*df(x1,t,3)*df(x1,t,2)*df(x1,t)**6*x1**6*x2**3*a1**6*ka*vm*( - 47*a1 - 16*a2 + 28*b2) + 4620*
df(x1,t,3)*df(x1,t,2)*df(x1,t)**6*x1**5*x2**4*a1**6*ka*vm*(52*a1 + 12*a2 - 21*b2) + 2772*df(x1,t,3)*df(x1,t,2)*df(x1,t)
**6*x1**4*x2**5*a1**6*ka*vm*( - 57*a1 - 8*a2 + 14*b2) + 924*df(x1,t,3)*df(x1,t,2)*df(x1,t)**6*x1**3*x2**6*a1**6*ka*vm*(
62*a1 + 4*a2 - 7*b2) - 8844*df(x1,t,3)*df(x1,t,2)*df(x1,t)**6*x1**2*x2**7*a1**7*ka*vm + 462*df(x1,t,3)*df(x1,t,2)*df(x1,
t)**5*x1**10*a1**7*ka*vm*(5*a1 + 8*a2 - 12*b2) + 264*df(x1,t,3)*df(x1,t,2)*df(x1,t)**5*x1**9*x2*a1**7*ka*vm*( - 83*a1 - 
98*a2 + 147*b2) + 5544*df(x1,t,3)*df(x1,t,2)*df(x1,t)**5*x1**8*x2**2*a1**7*ka*vm*(16*a1 + 14*a2 - 21*b2) + 1848*df(x1,t,
3)*df(x1,t,2)*df(x1,t)**5*x1**7*x2**3*a1**7*ka*vm*( - 109*a1 - 70*a2 + 105*b2) + 4620*df(x1,t,3)*df(x1,t,2)*df(x1,t)**5*
x1**6*x2**4*a1**7*ka*vm*(61*a1 + 28*a2 - 42*b2) + 5544*df(x1,t,3)*df(x1,t,2)*df(x1,t)**5*x1**5*x2**5*a1**7*ka*vm*( - 45*
a1 - 14*a2 + 21*b2) + 1848*df(x1,t,3)*df(x1,t,2)*df(x1,t)**5*x1**4*x2**6*a1**7*ka*vm*(74*a1 + 14*a2 - 21*b2) + 1848*df(
x1,t,3)*df(x1,t,2)*df(x1,t)**5*x1**3*x2**7*a1**7*ka*vm*( - 23*a1 - 2*a2 + 3*b2) + 5742*df(x1,t,3)*df(x1,t,2)*df(x1,t)**5
*x1**2*x2**8*a1**8*ka*vm + 55*df(x1,t,3)*df(x1,t,2)*df(x1,t)**4*x1**11*a1**8*ka*vm*(16*a1 + 48*a2 - 63*b2) + 165*df(x1,t
,3)*df(x1,t,2)*df(x1,t)**4*x1**10*x2*a1**8*ka*vm*( - 59*a1 - 128*a2 + 168*b2) + 4620*df(x1,t,3)*df(x1,t,2)*df(x1,t)**4*
x1**9*x2**2*a1**8*ka*vm*(10*a1 + 16*a2 - 21*b2) + 4620*df(x1,t,3)*df(x1,t,2)*df(x1,t)**4*x1**8*x2**3*a1**8*ka*vm*( - 27*
a1 - 32*a2 + 42*b2) + 2310*df(x1,t,3)*df(x1,t,2)*df(x1,t)**4*x1**7*x2**4*a1**8*ka*vm*(92*a1 + 80*a2 - 105*b2) + 2310*df(
x1,t,3)*df(x1,t,2)*df(x1,t)**4*x1**6*x2**5*a1**8*ka*vm*( - 103*a1 - 64*a2 + 84*b2) + 4620*df(x1,t,3)*df(x1,t,2)*df(x1,t)
**4*x1**5*x2**6*a1**8*ka*vm*(38*a1 + 16*a2 - 21*b2) + 660*df(x1,t,3)*df(x1,t,2)*df(x1,t)**4*x1**4*x2**7*a1**8*ka*vm*( - 
125*a1 - 32*a2 + 42*b2) + 165*df(x1,t,3)*df(x1,t,2)*df(x1,t)**4*x1**3*x2**8*a1**8*ka*vm*(136*a1 + 16*a2 - 21*b2) - 2695*
df(x1,t,3)*df(x1,t,2)*df(x1,t)**4*x1**2*x2**9*a1**9*ka*vm + 220*df(x1,t,3)*df(x1,t,2)*df(x1,t)**3*x1**12*a1**9*ka*vm*(a1
 + 6*a2 - 7*b2) + 220*df(x1,t,3)*df(x1,t,2)*df(x1,t)**3*x1**11*x2*a1**9*ka*vm*( - 13*a1 - 54*a2 + 63*b2) + 7920*df(x1,t,
3)*df(x1,t,2)*df(x1,t)**3*x1**10*x2**2*a1**9*ka*vm*(2*a1 + 6*a2 - 7*b2) + 2640*df(x1,t,3)*df(x1,t,2)*df(x1,t)**3*x1**9*
x2**3*a1**9*ka*vm*( - 19*a1 - 42*a2 + 49*b2) + 9240*df(x1,t,3)*df(x1,t,2)*df(x1,t)**3*x1**8*x2**4*a1**9*ka*vm*(11*a1 + 
18*a2 - 21*b2) + 27720*df(x1,t,3)*df(x1,t,2)*df(x1,t)**3*x1**7*x2**5*a1**9*ka*vm*( - 5*a1 - 6*a2 + 7*b2) + 18480*df(x1,t
,3)*df(x1,t,2)*df(x1,t)**3*x1**6*x2**6*a1**9*ka*vm*(7*a1 + 6*a2 - 7*b2) + 2640*df(x1,t,3)*df(x1,t,2)*df(x1,t)**3*x1**5*
x2**7*a1**9*ka*vm*( - 31*a1 - 18*a2 + 21*b2) + 1980*df(x1,t,3)*df(x1,t,2)*df(x1,t)**3*x1**4*x2**8*a1**9*ka*vm*(17*a1 + 6
*a2 - 7*b2) + 220*df(x1,t,3)*df(x1,t,2)*df(x1,t)**3*x1**3*x2**9*a1**9*ka*vm*( - 37*a1 - 6*a2 + 7*b2) + 880*df(x1,t,3)*df
(x1,t,2)*df(x1,t)**3*x1**2*x2**10*a1**10*ka*vm + 2*df(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**13*a1**10*ka*vm*(16*a1 + 220*a2
 - 231*b2) + 22*df(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**12*x2*a1**10*ka*vm*( - 23*a1 - 200*a2 + 210*b2) + 330*df(x1,t,3)*
df(x1,t,2)*df(x1,t)**2*x1**11*x2**2*a1**10*ka*vm*(10*a1 + 60*a2 - 63*b2) + 330*df(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**10*
x2**3*a1**10*ka*vm*( - 37*a1 - 160*a2 + 168*b2) + 660*df(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**9*x2**4*a1**10*ka*vm*(44*a1 
+ 140*a2 - 147*b2) + 2772*df(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**8*x2**5*a1**10*ka*vm*( - 17*a1 - 40*a2 + 42*b2) + 924*df
(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**7*x2**6*a1**10*ka*vm*(58*a1 + 100*a2 - 105*b2) + 660*df(x1,t,3)*df(x1,t,2)*df(x1,t)
**2*x1**6*x2**7*a1**10*ka*vm*( - 65*a1 - 80*a2 + 84*b2) + 990*df(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**5*x2**8*a1**10*ka*vm
*(24*a1 + 20*a2 - 21*b2) + 110*df(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**4*x2**9*a1**10*ka*vm*( - 79*a1 - 40*a2 + 42*b2) + 
22*df(x1,t,3)*df(x1,t,2)*df(x1,t)**2*x1**3*x2**10*a1**10*ka*vm*(86*a1 + 20*a2 - 21*b2) - 186*df(x1,t,3)*df(x1,t,2)*df(x1
,t)**2*x1**2*x2**11*a1**11*ka*vm + 2*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**14*a1**11*ka*vm*(a1 + 44*a2 - 42*b2) + 44*df(x1,
t,3)*df(x1,t,2)*df(x1,t)*x1**13*x2*a1**11*ka*vm*( - a1 - 22*a2 + 21*b2) + 44*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**12*x2**2
*a1**11*ka*vm*(8*a1 + 110*a2 - 105*b2) + 220*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**11*x2**3*a1**11*ka*vm*( - 7*a1 - 66*a2 +
 63*b2) + 330*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**10*x2**4*a1**11*ka*vm*(13*a1 + 88*a2 - 84*b2) + 264*df(x1,t,3)*df(x1,t,
2)*df(x1,t)*x1**9*x2**5*a1**11*ka*vm*( - 31*a1 - 154*a2 + 147*b2) + 1848*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**8*x2**6*a1**
11*ka*vm*(6*a1 + 22*a2 - 21*b2) + 264*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**7*x2**7*a1**11*ka*vm*( - 41*a1 - 110*a2 + 105*
b2) + 330*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**6*x2**8*a1**11*ka*vm*(23*a1 + 44*a2 - 42*b2) + 220*df(x1,t,3)*df(x1,t,2)*df
(x1,t)*x1**5*x2**9*a1**11*ka*vm*( - 17*a1 - 22*a2 + 21*b2) + 44*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**4*x2**10*a1**11*ka*vm
*(28*a1 + 22*a2 - 21*b2) + 4*df(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**3*x2**11*a1**11*ka*vm*( - 61*a1 - 22*a2 + 21*b2) + 22*df
(x1,t,3)*df(x1,t,2)*df(x1,t)*x1**2*x2**12*a1**12*ka*vm + df(x1,t,3)*df(x1,t,2)*x1**15*a1**12*ka*vm*(8*a2 - 7*b2) + df(x1
,t,3)*df(x1,t,2)*x1**14*x2*a1**12*ka*vm*( - a1 - 96*a2 + 84*b2) + 6*df(x1,t,3)*df(x1,t,2)*x1**13*x2**2*a1**12*ka*vm*(2*
a1 + 88*a2 - 77*b2) + 22*df(x1,t,3)*df(x1,t,2)*x1**12*x2**3*a1**12*ka*vm*( - 3*a1 - 80*a2 + 70*b2) + 55*df(x1,t,3)*df(x1
,t,2)*x1**11*x2**4*a1**12*ka*vm*(4*a1 + 72*a2 - 63*b2) + 99*df(x1,t,3)*df(x1,t,2)*x1**10*x2**5*a1**12*ka*vm*( - 5*a1 - 
64*a2 + 56*b2) + 132*df(x1,t,3)*df(x1,t,2)*x1**9*x2**6*a1**12*ka*vm*(6*a1 + 56*a2 - 49*b2) + 132*df(x1,t,3)*df(x1,t,2)*
x1**8*x2**7*a1**12*ka*vm*( - 7*a1 - 48*a2 + 42*b2) + 99*df(x1,t,3)*df(x1,t,2)*x1**7*x2**8*a1**12*ka*vm*(8*a1 + 40*a2 - 
35*b2) + 55*df(x1,t,3)*df(x1,t,2)*x1**6*x2**9*a1**12*ka*vm*( - 9*a1 - 32*a2 + 28*b2) + 22*df(x1,t,3)*df(x1,t,2)*x1**5*x2
**10*a1**12*ka*vm*(10*a1 + 24*a2 - 21*b2) + 6*df(x1,t,3)*df(x1,t,2)*x1**4*x2**11*a1**12*ka*vm*( - 11*a1 - 16*a2 + 14*b2)
 + df(x1,t,3)*df(x1,t,2)*x1**3*x2**12*a1**12*ka*vm*(12*a1 + 8*a2 - 7*b2) - df(x1,t,3)*df(x1,t,2)*x1**2*x2**13*a1**13*ka*
vm + df(x1,t,3)*df(x1,t)**16*x1*(ka - kc) + df(x1,t,3)*df(x1,t)**15*x1**2*(14*a1*ka - 15*a1*kc + b1*ka) + 15*df(x1,t,3)*
df(x1,t)**15*x1*x2*a1*( - ka + kc) - 4*df(x1,t,3)*df(x1,t)**15*x1*ka*vm + df(x1,t,3)*df(x1,t)**14*x1**3*a1*(91*a1*ka - 
105*a1*kc + a2*ka + 14*b1*ka - b2*ka) + df(x1,t,3)*df(x1,t)**14*x1**2*x2*a1*( - 196*a1*ka + 210*a1*kc - a2*ka - 14*b1*ka
 + b2*ka) + df(x1,t,3)*df(x1,t)**14*x1**2*vm*( - 44*a1*ka + 3*b2*ka - b2*kc) + 105*df(x1,t,3)*df(x1,t)**14*x1*x2**2*a1**
2*(ka - kc) + 51*df(x1,t,3)*df(x1,t)**14*x1*x2*a1*ka*vm + 7*df(x1,t,3)*df(x1,t)**13*x1**4*a1**2*(52*a1*ka - 65*a1*kc + 2
*a2*ka + 13*b1*ka - 2*b2*ka) + 7*df(x1,t,3)*df(x1,t)**13*x1**3*x2*a1**2*( - 169*a1*ka + 195*a1*kc - 4*a2*ka - 26*b1*ka +
 4*b2*ka) + df(x1,t,3)*df(x1,t)**13*x1**3*vm*( - 220*a1**2*ka - 6*a1*a2*ka + 32*a1*b2*ka - 14*a1*b2*kc + b1*b2*ka + b2**
2*ka) + 7*df(x1,t,3)*df(x1,t)**13*x1**2*x2**2*a1**2*(182*a1*ka - 195*a1*kc + 2*a2*ka + 13*b1*ka - 2*b2*ka) + 2*df(x1,t,3
)*df(x1,t)**13*x1**2*x2*a1*vm*(258*a1*ka + 4*a2*ka - 19*b2*ka + 7*b2*kc) + 455*df(x1,t,3)*df(x1,t)**13*x1*x2**3*a1**3*( 
- ka + kc) - 299*df(x1,t,3)*df(x1,t)**13*x1*x2**2*a1**2*ka*vm + 91*df(x1,t,3)*df(x1,t)**12*x1**5*a1**3*(11*a1*ka - 15*a1
*kc + a2*ka + 4*b1*ka - b2*ka) + 273*df(x1,t,3)*df(x1,t)**12*x1**4*x2*a1**3*( - 16*a1*ka + 20*a1*kc - a2*ka - 4*b1*ka + 
b2*ka) + df(x1,t,3)*df(x1,t)**12*x1**4*a1*vm*( - 660*a1**2*ka - 64*a1*a2*ka + 150*a1*b2*ka - 91*a1*b2*kc - 2*a2**2*ka + 
7*a2*b2*ka + 13*b1*b2*ka + 13*b2**2*ka) + 273*df(x1,t,3)*df(x1,t)**12*x1**3*x2**2*a1**3*(26*a1*ka - 30*a1*kc + a2*ka + 4
*b1*ka - b2*ka) + df(x1,t,3)*df(x1,t)**12*x1**3*x2*a1*vm*(2354*a1**2*ka + 159*a1*a2*ka - 371*a1*b2*ka + 182*a1*b2*kc + 2
*a2**2*ka - 7*a2*b2*ka - 13*b1*b2*ka - 13*b2**2*ka) + 91*df(x1,t,3)*df(x1,t)**12*x1**2*x2**3*a1**3*( - 56*a1*ka + 60*a1*
kc - a2*ka - 4*b1*ka + b2*ka) + df(x1,t,3)*df(x1,t)**12*x1**2*x2**2*a1**2*vm*( - 2760*a1*ka - 95*a2*ka + 221*b2*ka - 91*
b2*kc) + 1365*df(x1,t,3)*df(x1,t)**12*x1*x2**4*a1**4*(ka - kc) + 1066*df(x1,t,3)*df(x1,t)**12*x1*x2**3*a1**3*ka*vm + 91*
df(x1,t,3)*df(x1,t)**11*x1**6*a1**4*(22*a1*ka - 33*a1*kc + 4*a2*ka + 11*b1*ka - 4*b2*ka) + 91*df(x1,t,3)*df(x1,t)**11*x1
**5*x2*a1**4*( - 121*a1*ka + 165*a1*kc - 16*a2*ka - 44*b1*ka + 16*b2*ka) + 2*df(x1,t,3)*df(x1,t)**11*x1**5*a1**2*vm*( - 
660*a1**2*ka - 154*a1*a2*ka + 198*a1*b2*ka - 182*a1*b2*kc - 14*a2**2*ka + 42*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 546
*df(x1,t,3)*df(x1,t)**11*x1**4*x2**2*a1**4*(44*a1*ka - 55*a1*kc + 4*a2*ka + 11*b1*ka - 4*b2*ka) + 4*df(x1,t,3)*df(x1,t)
**11*x1**4*x2*a1**2*vm*(1595*a1**2*ka + 283*a1*a2*ka - 393*a1*b2*ka + 273*a1*b2*kc + 14*a2**2*ka - 42*a2*b2*ka - 39*b1*
b2*ka - 39*b2**2*ka) + 182*df(x1,t,3)*df(x1,t)**11*x1**3*x2**3*a1**4*( - 143*a1*ka + 165*a1*kc - 8*a2*ka - 22*b1*ka + 8*
b2*ka) + 2*df(x1,t,3)*df(x1,t)**11*x1**3*x2**2*a1**2*vm*( - 5687*a1**2*ka - 670*a1*a2*ka + 978*a1*b2*ka - 546*a1*b2*kc -
 14*a2**2*ka + 42*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 91*df(x1,t,3)*df(x1,t)**11*x1**2*x2**4*a1**4*(154*a1*ka - 165*
a1*kc + 4*a2*ka + 11*b1*ka - 4*b2*ka) + 4*df(x1,t,3)*df(x1,t)**11*x1**2*x2**3*a1**3*vm*(2222*a1*ka + 129*a2*ka - 195*b2*
ka + 91*b2*kc) + 3003*df(x1,t,3)*df(x1,t)**11*x1*x2**5*a1**5*( - ka + kc) - 2574*df(x1,t,3)*df(x1,t)**11*x1*x2**4*a1**4*
ka*vm + 1001*df(x1,t,3)*df(x1,t)**10*x1**7*a1**5*(3*a1*ka - 5*a1*kc + a2*ka + 2*b1*ka - b2*ka) + 5005*df(x1,t,3)*df(x1,t
)**10*x1**6*x2*a1**5*( - 4*a1*ka + 6*a1*kc - a2*ka - 2*b1*ka + b2*ka) + 11*df(x1,t,3)*df(x1,t)**10*x1**6*a1**3*vm*( - 
168*a1**2*ka - 80*a1*a2*ka + 55*a1*b2*ka - 91*a1*b2*kc - 16*a2**2*ka + 42*a2*b2*ka + 26*b1*b2*ka + 26*b2**2*ka) + 5005*
df(x1,t,3)*df(x1,t)**10*x1**5*x2**2*a1**5*(11*a1*ka - 15*a1*kc + 2*a2*ka + 4*b1*ka - 2*b2*ka) + 11*df(x1,t,3)*df(x1,t)**
10*x1**5*x2*a1**3*vm*(1035*a1**2*ka + 394*a1*a2*ka - 334*a1*b2*ka + 364*a1*b2*kc + 48*a2**2*ka - 126*a2*b2*ka - 78*b1*b2
*ka - 78*b2**2*ka) + 10010*df(x1,t,3)*df(x1,t)**10*x1**4*x2**3*a1**5*( - 8*a1*ka + 10*a1*kc - a2*ka - 2*b1*ka + b2*ka) +
 22*df(x1,t,3)*df(x1,t)**10*x1**4*x2**2*a1**3*vm*( - 1250*a1**2*ka - 351*a1*a2*ka + 336*a1*b2*ka - 273*a1*b2*kc - 24*a2
**2*ka + 63*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 5005*df(x1,t,3)*df(x1,t)**10*x1**3*x2**4*a1**5*(13*a1*ka - 15*a1*kc 
+ a2*ka + 2*b1*ka - b2*ka) + 22*df(x1,t,3)*df(x1,t)**10*x1**3*x2**3*a1**3*vm*(1485*a1**2*ka + 271*a1*a2*ka - 281*a1*b2*
ka + 182*a1*b2*kc + 8*a2**2*ka - 21*a2*b2*ka - 13*b1*b2*ka - 13*b2**2*ka) + 1001*df(x1,t,3)*df(x1,t)**10*x1**2*x2**5*a1
**5*( - 28*a1*ka + 30*a1*kc - a2*ka - 2*b1*ka + b2*ka) + 11*df(x1,t,3)*df(x1,t)**10*x1**2*x2**4*a1**4*vm*( - 1740*a1*ka 
- 154*a2*ka + 169*b2*ka - 91*b2*kc) + 5005*df(x1,t,3)*df(x1,t)**10*x1*x2**6*a1**6*(ka - kc) + 4433*df(x1,t,3)*df(x1,t)**
10*x1*x2**5*a1**5*ka*vm + 143*df(x1,t,3)*df(x1,t)**9*x1**8*a1**6*(24*a1*ka - 45*a1*kc + 14*a2*ka + 21*b1*ka - 14*b2*ka) 
+ 3003*df(x1,t,3)*df(x1,t)**9*x1**7*x2*a1**6*( - 9*a1*ka + 15*a1*kc - 4*a2*ka - 6*b1*ka + 4*b2*ka) + 11*df(x1,t,3)*df(x1
,t)**9*x1**7*a1**4*vm*( - 168*a1**2*ka - 150*a1*a2*ka + 36*a1*b2*ka - 182*a1*b2*kc - 60*a2**2*ka + 140*a2*b2*ka + 65*b1*
b2*ka + 65*b2**2*ka) + 15015*df(x1,t,3)*df(x1,t)**9*x1**6*x2**2*a1**6*(6*a1*ka - 9*a1*kc + 2*a2*ka + 3*b1*ka - 2*b2*ka) 
+ 22*df(x1,t,3)*df(x1,t)**9*x1**6*x2*a1**4*vm*(636*a1**2*ka + 470*a1*a2*ka - 215*a1*b2*ka + 455*a1*b2*kc + 120*a2**2*ka 
- 280*a2*b2*ka - 130*b1*b2*ka - 130*b2**2*ka) + 5005*df(x1,t,3)*df(x1,t)**9*x1**5*x2**3*a1**6*( - 33*a1*ka + 45*a1*kc - 
8*a2*ka - 12*b1*ka + 8*b2*ka) + 55*df(x1,t,3)*df(x1,t)**9*x1**5*x2**2*a1**4*vm*( - 783*a1**2*ka - 452*a1*a2*ka + 272*a1*
b2*ka - 364*a1*b2*kc - 72*a2**2*ka + 168*a2*b2*ka + 78*b1*b2*ka + 78*b2**2*ka) + 15015*df(x1,t,3)*df(x1,t)**9*x1**4*x2**
4*a1**6*(12*a1*ka - 15*a1*kc + 2*a2*ka + 3*b1*ka - 2*b2*ka) + 220*df(x1,t,3)*df(x1,t)**9*x1**4*x2**3*a1**4*vm*(315*a1**2
*ka + 132*a1*a2*ka - 93*a1*b2*ka + 91*a1*b2*kc + 12*a2**2*ka - 28*a2*b2*ka - 13*b1*b2*ka - 13*b2**2*ka) + 3003*df(x1,t,3
)*df(x1,t)**9*x1**3*x2**5*a1**6*( - 39*a1*ka + 45*a1*kc - 4*a2*ka - 6*b1*ka + 4*b2*ka) + 55*df(x1,t,3)*df(x1,t)**9*x1**3
*x2**4*a1**4*vm*( - 1122*a1**2*ka - 302*a1*a2*ka + 236*a1*b2*ka - 182*a1*b2*kc - 12*a2**2*ka + 28*a2*b2*ka + 13*b1*b2*ka
 + 13*b2**2*ka) + 1001*df(x1,t,3)*df(x1,t)**9*x1**2*x2**6*a1**6*(42*a1*ka - 45*a1*kc + 2*a2*ka + 3*b1*ka - 2*b2*ka) + 22
*df(x1,t,3)*df(x1,t)**9*x1**2*x2**5*a1**5*vm*(1314*a1*ka + 170*a2*ka - 143*b2*ka + 91*b2*kc) + 6435*df(x1,t,3)*df(x1,t)
**9*x1*x2**7*a1**7*( - ka + kc) - 5577*df(x1,t,3)*df(x1,t)**9*x1*x2**6*a1**6*ka*vm + 429*df(x1,t,3)*df(x1,t)**8*x1**9*a1
**7*(7*a1*ka - 15*a1*kc + 7*a2*ka + 8*b1*ka - 7*b2*ka) + 429*df(x1,t,3)*df(x1,t)**8*x1**8*x2*a1**7*( - 64*a1*ka + 120*a1
*kc - 49*a2*ka - 56*b1*ka + 49*b2*ka) + 33*df(x1,t,3)*df(x1,t)**8*x1**8*a1**5*vm*( - 40*a1**2*ka - 64*a1*a2*ka - 12*a1*
b2*ka - 91*a1*b2*kc - 50*a2**2*ka + 105*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 9009*df(x1,t,3)*df(x1,t)**8*x1**7*x2**2*
a1**7*(12*a1*ka - 20*a1*kc + 7*a2*ka + 8*b1*ka - 7*b2*ka) + 33*df(x1,t,3)*df(x1,t)**8*x1**7*x2*a1**5*vm*(364*a1**2*ka + 
497*a1*a2*ka - 57*a1*b2*ka + 546*a1*b2*kc + 250*a2**2*ka - 525*a2*b2*ka - 195*b1*b2*ka - 195*b2**2*ka) + 15015*df(x1,t,3
)*df(x1,t)**8*x1**6*x2**3*a1**7*( - 16*a1*ka + 24*a1*kc - 7*a2*ka - 8*b1*ka + 7*b2*ka) + 33*df(x1,t,3)*df(x1,t)**8*x1**6
*x2**2*a1**5*vm*( - 1376*a1**2*ka - 1525*a1*a2*ka + 465*a1*b2*ka - 1365*a1*b2*kc - 500*a2**2*ka + 1050*a2*b2*ka + 390*b1
*b2*ka + 390*b2**2*ka) + 15015*df(x1,t,3)*df(x1,t)**8*x1**5*x2**4*a1**7*(22*a1*ka - 30*a1*kc + 7*a2*ka + 8*b1*ka - 7*b2*
ka) + 330*df(x1,t,3)*df(x1,t)**8*x1**5*x2**3*a1**5*vm*(282*a1**2*ka + 241*a1*a2*ka - 105*a1*b2*ka + 182*a1*b2*kc + 50*a2
**2*ka - 105*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) + 9009*df(x1,t,3)*df(x1,t)**8*x1**4*x2**5*a1**7*( - 32*a1*ka + 40*a1*
kc - 7*a2*ka - 8*b1*ka + 7*b2*ka) + 165*df(x1,t,3)*df(x1,t)**8*x1**4*x2**4*a1**5*vm*( - 680*a1**2*ka - 418*a1*a2*ka + 
222*a1*b2*ka - 273*a1*b2*kc - 50*a2**2*ka + 105*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 3003*df(x1,t,3)*df(x1,t)**8*x1**
3*x2**6*a1**7*(52*a1*ka - 60*a1*kc + 7*a2*ka + 8*b1*ka - 7*b2*ka) + 33*df(x1,t,3)*df(x1,t)**8*x1**3*x2**5*a1**5*vm*(2420
*a1**2*ka + 949*a1*a2*ka - 573*a1*b2*ka + 546*a1*b2*kc + 50*a2**2*ka - 105*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) + 429*
df(x1,t,3)*df(x1,t)**8*x1**2*x2**7*a1**7*( - 112*a1*ka + 120*a1*kc - 7*a2*ka - 8*b1*ka + 7*b2*ka) + 33*df(x1,t,3)*df(x1,
t)**8*x1**2*x2**6*a1**6*vm*( - 944*a1*ka - 177*a2*ka + 117*b2*ka - 91*b2*kc) + 6435*df(x1,t,3)*df(x1,t)**8*x1*x2**8*a1**
8*(ka - kc) + 5148*df(x1,t,3)*df(x1,t)**8*x1*x2**7*a1**7*ka*vm + 143*df(x1,t,3)*df(x1,t)**7*x1**10*a1**8*(14*a1*ka - 35*
a1*kc + 24*a2*ka + 21*b1*ka - 24*b2*ka) + 429*df(x1,t,3)*df(x1,t)**7*x1**9*x2*a1**8*( - 49*a1*ka + 105*a1*kc - 64*a2*ka 
- 56*b1*ka + 64*b2*ka) + 132*df(x1,t,3)*df(x1,t)**7*x1**9*a1**6*vm*( - 5*a1**2*ka - 14*a1*a2*ka - 10*a1*b2*ka - 26*a1*b2
*kc - 22*a2**2*ka + 42*a2*b2*ka + 13*b1*b2*ka + 13*b2**2*ka) + 12012*df(x1,t,3)*df(x1,t)**7*x1**8*x2**2*a1**8*(8*a1*ka -
 15*a1*kc + 8*a2*ka + 7*b1*ka - 8*b2*ka) + 264*df(x1,t,3)*df(x1,t)**7*x1**8*x2*a1**6*vm*(27*a1**2*ka + 67*a1*a2*ka + 17*
a1*b2*ka + 91*a1*b2*kc + 66*a2**2*ka - 126*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) + 12012*df(x1,t,3)*df(x1,t)**7*x1**7*x2
**3*a1**8*( - 21*a1*ka + 35*a1*kc - 16*a2*ka - 14*b1*ka + 16*b2*ka) + 132*df(x1,t,3)*df(x1,t)**7*x1**7*x2**2*a1**6*vm*( 
- 245*a1**2*ka - 510*a1*a2*ka + 6*a1*b2*ka - 546*a1*b2*kc - 330*a2**2*ka + 630*a2*b2*ka + 195*b1*b2*ka + 195*b2**2*ka) +
 30030*df(x1,t,3)*df(x1,t)**7*x1**6*x2**4*a1**8*(14*a1*ka - 21*a1*kc + 8*a2*ka + 7*b1*ka - 8*b2*ka) + 264*df(x1,t,3)*df(
x1,t)**7*x1**6*x2**3*a1**6*vm*(308*a1**2*ka + 515*a1*a2*ka - 95*a1*b2*ka + 455*a1*b2*kc + 220*a2**2*ka - 420*a2*b2*ka - 
130*b1*b2*ka - 130*b2**2*ka) + 6006*df(x1,t,3)*df(x1,t)**7*x1**5*x2**5*a1**8*( - 77*a1*ka + 105*a1*kc - 32*a2*ka - 28*b1
*ka + 32*b2*ka) + 660*df(x1,t,3)*df(x1,t)**7*x1**5*x2**4*a1**6*vm*( - 189*a1**2*ka - 242*a1*a2*ka + 74*a1*b2*ka - 182*a1
*b2*kc - 66*a2**2*ka + 126*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 12012*df(x1,t,3)*df(x1,t)**7*x1**4*x2**6*a1**8*(28*a1
*ka - 35*a1*kc + 8*a2*ka + 7*b1*ka - 8*b2*ka) + 264*df(x1,t,3)*df(x1,t)**7*x1**4*x2**5*a1**6*vm*(455*a1**2*ka + 417*a1*
a2*ka - 165*a1*b2*ka + 273*a1*b2*kc + 66*a2**2*ka - 126*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) + 1716*df(x1,t,3)*df(x1,t)
**7*x1**3*x2**7*a1**8*( - 91*a1*ka + 105*a1*kc - 16*a2*ka - 14*b1*ka + 16*b2*ka) + 132*df(x1,t,3)*df(x1,t)**7*x1**3*x2**
6*a1**6*vm*( - 539*a1**2*ka - 314*a1*a2*ka + 146*a1*b2*ka - 182*a1*b2*kc - 22*a2**2*ka + 42*a2*b2*ka + 13*b1*b2*ka + 13*
b2**2*ka) + 429*df(x1,t,3)*df(x1,t)**7*x1**2*x2**8*a1**8*(98*a1*ka - 105*a1*kc + 8*a2*ka + 7*b1*ka - 8*b2*ka) + 264*df(
x1,t,3)*df(x1,t)**7*x1**2*x2**7*a1**7*vm*(90*a1*ka + 25*a2*ka - 13*b2*ka + 13*b2*kc) + 5005*df(x1,t,3)*df(x1,t)**7*x1*x2
**9*a1**9*( - ka + kc) - 3432*df(x1,t,3)*df(x1,t)**7*x1*x2**8*a1**8*ka*vm + 1001*df(x1,t,3)*df(x1,t)**6*x1**11*a1**9*(a1
*ka - 3*a1*kc + 3*a2*ka + 2*b1*ka - 3*b2*ka) + 3003*df(x1,t,3)*df(x1,t)**6*x1**10*x2*a1**9*( - 4*a1*ka + 10*a1*kc - 9*a2
*ka - 6*b1*ka + 9*b2*ka) + 11*df(x1,t,3)*df(x1,t)**6*x1**10*a1**7*vm*( - 20*a1**2*ka - 96*a1*a2*ka - 153*a1*b2*ka - 273*
a1*b2*kc - 336*a2**2*ka + 588*a2*b2*ka + 156*b1*b2*ka + 156*b2**2*ka) + 9009*df(x1,t,3)*df(x1,t)**6*x1**9*x2**2*a1**9*(7
*a1*ka - 15*a1*kc + 12*a2*ka + 8*b1*ka - 12*b2*ka) + 33*df(x1,t,3)*df(x1,t)**6*x1**9*x2*a1**7*vm*(85*a1**2*ka + 388*a1*
a2*ka + 292*a1*b2*ka + 728*a1*b2*kc + 784*a2**2*ka - 1372*a2*b2*ka - 364*b1*b2*ka - 364*b2**2*ka) + 12012*df(x1,t,3)*df(
x1,t)**6*x1**8*x2**3*a1**9*( - 16*a1*ka + 30*a1*kc - 21*a2*ka - 14*b1*ka + 21*b2*ka) + 132*df(x1,t,3)*df(x1,t)**6*x1**8*
x2**2*a1**7*vm*( - 114*a1**2*ka - 455*a1*a2*ka - 154*a1*b2*ka - 637*a1*b2*kc - 588*a2**2*ka + 1029*a2*b2*ka + 273*b1*b2*
ka + 273*b2**2*ka) + 126126*df(x1,t,3)*df(x1,t)**6*x1**7*x2**4*a1**9*(3*a1*ka - 5*a1*kc + 3*a2*ka + 2*b1*ka - 3*b2*ka) +
 924*df(x1,t,3)*df(x1,t)**6*x1**7*x2**3*a1**7*vm*(49*a1**2*ka + 163*a1*a2*ka + 15*a1*b2*ka + 182*a1*b2*kc + 140*a2**2*ka
 - 245*a2*b2*ka - 65*b1*b2*ka - 65*b2**2*ka) + 126126*df(x1,t,3)*df(x1,t)**6*x1**6*x2**5*a1**9*( - 4*a1*ka + 6*a1*kc - 3
*a2*ka - 2*b1*ka + 3*b2*ka) + 462*df(x1,t,3)*df(x1,t)**6*x1**6*x2**4*a1**7*vm*( - 184*a1**2*ka - 490*a1*a2*ka + 35*a1*b2
*ka - 455*a1*b2*kc - 280*a2**2*ka + 490*a2*b2*ka + 130*b1*b2*ka + 130*b2**2*ka) + 42042*df(x1,t,3)*df(x1,t)**6*x1**5*x2
**6*a1**9*(11*a1*ka - 15*a1*kc + 6*a2*ka + 4*b1*ka - 6*b2*ka) + 462*df(x1,t,3)*df(x1,t)**6*x1**5*x2**5*a1**7*vm*(225*a1
**2*ka + 458*a1*a2*ka - 86*a1*b2*ka + 364*a1*b2*kc + 168*a2**2*ka - 294*a2*b2*ka - 78*b1*b2*ka - 78*b2**2*ka) + 36036*df
(x1,t,3)*df(x1,t)**6*x1**4*x2**7*a1**9*( - 8*a1*ka + 10*a1*kc - 3*a2*ka - 2*b1*ka + 3*b2*ka) + 924*df(x1,t,3)*df(x1,t)**
6*x1**4*x2**6*a1**7*vm*( - 90*a1**2*ka - 131*a1*a2*ka + 36*a1*b2*ka - 91*a1*b2*kc - 28*a2**2*ka + 49*a2*b2*ka + 13*b1*b2
*ka + 13*b2**2*ka) + 9009*df(x1,t,3)*df(x1,t)**6*x1**3*x2**8*a1**9*(13*a1*ka - 15*a1*kc + 3*a2*ka + 2*b1*ka - 3*b2*ka) +
 132*df(x1,t,3)*df(x1,t)**6*x1**3*x2**7*a1**7*vm*(319*a1**2*ka + 295*a1*a2*ka - 101*a1*b2*ka + 182*a1*b2*kc + 28*a2**2*
ka - 49*a2*b2*ka - 13*b1*b2*ka - 13*b2**2*ka) + 1001*df(x1,t,3)*df(x1,t)**6*x1**2*x2**9*a1**9*( - 28*a1*ka + 30*a1*kc - 
3*a2*ka - 2*b1*ka + 3*b2*ka) + 33*df(x1,t,3)*df(x1,t)**6*x1**2*x2**8*a1**8*vm*( - 372*a1*ka - 164*a2*ka + 65*b2*ka - 91*
b2*kc) + 3003*df(x1,t,3)*df(x1,t)**6*x1*x2**10*a1**10*(ka - kc) + 1573*df(x1,t,3)*df(x1,t)**6*x1*x2**9*a1**9*ka*vm + 91*
df(x1,t,3)*df(x1,t)**5*x1**12*a1**10*(4*a1*ka - 15*a1*kc + 22*a2*ka + 11*b1*ka - 22*b2*ka) + 5005*df(x1,t,3)*df(x1,t)**5
*x1**11*x2*a1**10*( - a1*ka + 3*a1*kc - 4*a2*ka - 2*b1*ka + 4*b2*ka) + 11*df(x1,t,3)*df(x1,t)**5*x1**11*a1**8*vm*( - 4*
a1**2*ka - 30*a1*a2*ka - 120*a1*b2*ka - 182*a1*b2*kc - 312*a2**2*ka + 504*a2*b2*ka + 117*b1*b2*ka + 117*b2**2*ka) + 
15015*df(x1,t,3)*df(x1,t)**5*x1**10*x2**2*a1**10*(2*a1*ka - 5*a1*kc + 6*a2*ka + 3*b1*ka - 6*b2*ka) + 66*df(x1,t,3)*df(x1
,t)**5*x1**10*x2*a1**8*vm*(10*a1**2*ka + 88*a1*a2*ka + 147*a1*b2*ka + 273*a1*b2*kc + 416*a2**2*ka - 672*a2*b2*ka - 156*
b1*b2*ka - 156*b2**2*ka) + 15015*df(x1,t,3)*df(x1,t)**5*x1**9*x2**3*a1**10*( - 7*a1*ka + 15*a1*kc - 16*a2*ka - 8*b1*ka +
 16*b2*ka) + 33*df(x1,t,3)*df(x1,t)**5*x1**9*x2**2*a1**8*vm*( - 125*a1**2*ka - 1048*a1*a2*ka - 912*a1*b2*ka - 2184*a1*b2
*kc - 2912*a2**2*ka + 4704*a2*b2*ka + 1092*b1*b2*ka + 1092*b2**2*ka) + 30030*df(x1,t,3)*df(x1,t)**5*x1**8*x2**4*a1**10*(
8*a1*ka - 15*a1*kc + 14*a2*ka + 7*b1*ka - 14*b2*ka) + 264*df(x1,t,3)*df(x1,t)**5*x1**8*x2**3*a1**8*vm*(55*a1**2*ka + 406
*a1*a2*ka + 189*a1*b2*ka + 637*a1*b2*kc + 728*a2**2*ka - 1176*a2*b2*ka - 273*b1*b2*ka - 273*b2**2*ka) + 126126*df(x1,t,3
)*df(x1,t)**5*x1**7*x2**5*a1**10*( - 3*a1*ka + 5*a1*kc - 4*a2*ka - 2*b1*ka + 4*b2*ka) + 462*df(x1,t,3)*df(x1,t)**5*x1**7
*x2**4*a1**8*vm*( - 70*a1**2*ka - 434*a1*a2*ka - 96*a1*b2*ka - 546*a1*b2*kc - 520*a2**2*ka + 840*a2*b2*ka + 195*b1*b2*ka
 + 195*b2**2*ka) + 210210*df(x1,t,3)*df(x1,t)**5*x1**6*x2**6*a1**10*(2*a1*ka - 3*a1*kc + 2*a2*ka + b1*ka - 2*b2*ka) + 
924*df(x1,t,3)*df(x1,t)**5*x1**6*x2**5*a1**8*vm*(52*a1**2*ka + 260*a1*a2*ka + 15*a1*b2*ka + 273*a1*b2*kc + 208*a2**2*ka 
- 336*a2*b2*ka - 78*b1*b2*ka - 78*b2**2*ka) + 30030*df(x1,t,3)*df(x1,t)**5*x1**5*x2**7*a1**10*( - 11*a1*ka + 15*a1*kc - 
8*a2*ka - 4*b1*ka + 8*b2*ka) + 462*df(x1,t,3)*df(x1,t)**5*x1**5*x2**6*a1**8*vm*( - 105*a1**2*ka - 404*a1*a2*ka + 24*a1*
b2*ka - 364*a1*b2*kc - 208*a2**2*ka + 336*a2*b2*ka + 78*b1*b2*ka + 78*b2**2*ka) + 45045*df(x1,t,3)*df(x1,t)**5*x1**4*x2
**8*a1**10*(4*a1*ka - 5*a1*kc + 2*a2*ka + b1*ka - 2*b2*ka) + 264*df(x1,t,3)*df(x1,t)**5*x1**4*x2**7*a1**8*vm*(125*a1**2*
ka + 346*a1*a2*ka - 51*a1*b2*ka + 273*a1*b2*kc + 104*a2**2*ka - 168*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) + 5005*df(x1,t
,3)*df(x1,t)**5*x1**3*x2**9*a1**10*( - 13*a1*ka + 15*a1*kc - 4*a2*ka - 2*b1*ka + 4*b2*ka) + 33*df(x1,t,3)*df(x1,t)**5*x1
**3*x2**8*a1**8*vm*( - 440*a1**2*ka - 778*a1*a2*ka + 168*a1*b2*ka - 546*a1*b2*kc - 104*a2**2*ka + 168*a2*b2*ka + 39*b1*
b2*ka + 39*b2**2*ka) + 1001*df(x1,t,3)*df(x1,t)**5*x1**2*x2**10*a1**10*(14*a1*ka - 15*a1*kc + 2*a2*ka + b1*ka - 2*b2*ka)
 + 22*df(x1,t,3)*df(x1,t)**5*x1**2*x2**9*a1**9*vm*(170*a1*ka + 144*a2*ka - 39*b2*ka + 91*b2*kc) + 1365*df(x1,t,3)*df(x1,
t)**5*x1*x2**11*a1**11*( - ka + kc) - 429*df(x1,t,3)*df(x1,t)**5*x1*x2**10*a1**10*ka*vm + 91*df(x1,t,3)*df(x1,t)**4*x1**
13*a1**11*(a1*ka - 5*a1*kc + 11*a2*ka + 4*b1*ka - 11*b2*ka) + 91*df(x1,t,3)*df(x1,t)**4*x1**12*x2*a1**11*( - 16*a1*ka + 
60*a1*kc - 121*a2*ka - 44*b1*ka + 121*b2*ka) + df(x1,t,3)*df(x1,t)**4*x1**12*a1**9*vm*( - 4*a1**2*ka - 682*a1*b2*ka - 
1001*a1*b2*kc - 2310*a2**2*ka + 3465*a2*b2*ka + 715*b1*b2*ka + 715*b2**2*ka) + 5005*df(x1,t,3)*df(x1,t)**4*x1**11*x2**2*
a1**11*(2*a1*ka - 6*a1*kc + 11*a2*ka + 4*b1*ka - 11*b2*ka) + 11*df(x1,t,3)*df(x1,t)**4*x1**11*x2*a1**9*vm*(6*a1**2*ka + 
115*a1*a2*ka + 545*a1*b2*ka + 910*a1*b2*kc + 1890*a2**2*ka - 2835*a2*b2*ka - 585*b1*b2*ka - 585*b2**2*ka) + 5005*df(x1,t
,3)*df(x1,t)**4*x1**10*x2**3*a1**11*( - 8*a1*ka + 20*a1*kc - 33*a2*ka - 12*b1*ka + 33*b2*ka) + 55*df(x1,t,3)*df(x1,t)**4
*x1**10*x2**2*a1**9*vm*( - 8*a1**2*ka - 207*a1*a2*ka - 423*a1*b2*ka - 819*a1*b2*kc - 1512*a2**2*ka + 2268*a2*b2*ka + 468
*b1*b2*ka + 468*b2**2*ka) + 15015*df(x1,t,3)*df(x1,t)**4*x1**9*x2**4*a1**11*(7*a1*ka - 15*a1*kc + 22*a2*ka + 8*b1*ka - 
22*b2*ka) + 330*df(x1,t,3)*df(x1,t)**4*x1**9*x2**3*a1**9*vm*(5*a1**2*ka + 138*a1*a2*ka + 158*a1*b2*ka + 364*a1*b2*kc + 
588*a2**2*ka - 882*a2*b2*ka - 182*b1*b2*ka - 182*b2**2*ka) + 6006*df(x1,t,3)*df(x1,t)**4*x1**8*x2**5*a1**11*( - 32*a1*ka
 + 60*a1*kc - 77*a2*ka - 28*b1*ka + 77*b2*ka) + 330*df(x1,t,3)*df(x1,t)**4*x1**8*x2**4*a1**9*vm*( - 12*a1**2*ka - 322*a1
*a2*ka - 224*a1*b2*ka - 637*a1*b2*kc - 882*a2**2*ka + 1323*a2*b2*ka + 273*b1*b2*ka + 273*b2**2*ka) + 42042*df(x1,t,3)*df
(x1,t)**4*x1**7*x2**6*a1**11*(6*a1*ka - 10*a1*kc + 11*a2*ka + 4*b1*ka - 11*b2*ka) + 462*df(x1,t,3)*df(x1,t)**4*x1**7*x2
**5*a1**9*vm*(14*a1**2*ka + 345*a1*a2*ka + 147*a1*b2*ka + 546*a1*b2*kc + 630*a2**2*ka - 945*a2*b2*ka - 195*b1*b2*ka - 
195*b2**2*ka) + 30030*df(x1,t,3)*df(x1,t)**4*x1**6*x2**7*a1**11*( - 8*a1*ka + 12*a1*kc - 11*a2*ka - 4*b1*ka + 11*b2*ka) 
+ 462*df(x1,t,3)*df(x1,t)**4*x1**6*x2**6*a1**9*vm*( - 16*a1**2*ka - 345*a1*a2*ka - 85*a1*b2*ka - 455*a1*b2*kc - 420*a2**
2*ka + 630*a2*b2*ka + 130*b1*b2*ka + 130*b2**2*ka) + 15015*df(x1,t,3)*df(x1,t)**4*x1**5*x2**8*a1**11*(11*a1*ka - 15*a1*
kc + 11*a2*ka + 4*b1*ka - 11*b2*ka) + 660*df(x1,t,3)*df(x1,t)**4*x1**5*x2**7*a1**9*vm*(9*a1**2*ka + 161*a1*a2*ka + 19*a1
*b2*ka + 182*a1*b2*kc + 126*a2**2*ka - 189*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) + 5005*df(x1,t,3)*df(x1,t)**4*x1**4*x2
**9*a1**11*( - 16*a1*ka + 20*a1*kc - 11*a2*ka - 4*b1*ka + 11*b2*ka) + 165*df(x1,t,3)*df(x1,t)**4*x1**4*x2**8*a1**9*vm*( 
- 20*a1**2*ka - 276*a1*a2*ka - 6*a1*b2*ka - 273*a1*b2*kc - 126*a2**2*ka + 189*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 
1001*df(x1,t,3)*df(x1,t)**4*x1**3*x2**10*a1**11*(26*a1*ka - 30*a1*kc + 11*a2*ka + 4*b1*ka - 11*b2*ka) + 55*df(x1,t,3)*df
(x1,t)**4*x1**3*x2**9*a1**9*vm*(22*a1**2*ka + 207*a1*a2*ka - 11*a1*b2*ka + 182*a1*b2*kc + 42*a2**2*ka - 63*a2*b2*ka - 13
*b1*b2*ka - 13*b2**2*ka) + 91*df(x1,t,3)*df(x1,t)**4*x1**2*x2**11*a1**11*( - 56*a1*ka + 60*a1*kc - 11*a2*ka - 4*b1*ka + 
11*b2*ka) + 11*df(x1,t,3)*df(x1,t)**4*x1**2*x2**10*a1**10*vm*( - 24*a1*ka - 115*a2*ka + 13*b2*ka - 91*b2*kc) + 455*df(x1
,t,3)*df(x1,t)**4*x1*x2**12*a1**12*(ka - kc) + 26*df(x1,t,3)*df(x1,t)**4*x1*x2**11*a1**11*ka*vm + 7*df(x1,t,3)*df(x1,t)
**3*x1**14*a1**12*(2*a1*ka - 15*a1*kc + 52*a2*ka + 13*b1*ka - 52*b2*ka) + 273*df(x1,t,3)*df(x1,t)**3*x1**13*x2*a1**12*( 
- a1*ka + 5*a1*kc - 16*a2*ka - 4*b1*ka + 16*b2*ka) + 2*df(x1,t,3)*df(x1,t)**3*x1**13*a1**10*vm*(22*a1*a2*ka - 114*a1*b2*
ka - 182*a1*b2*kc - 550*a2**2*ka + 770*a2*b2*ka + 143*b1*b2*ka + 143*b2**2*ka) + 546*df(x1,t,3)*df(x1,t)**3*x1**12*x2**2
*a1**12*(4*a1*ka - 15*a1*kc + 44*a2*ka + 11*b1*ka - 44*b2*ka) + 4*df(x1,t,3)*df(x1,t)**3*x1**12*x2*a1**10*vm*( - a1**2*
ka - 33*a1*a2*ka + 583*a1*b2*ka + 1001*a1*b2*kc + 2750*a2**2*ka - 3850*a2*b2*ka - 715*b1*b2*ka - 715*b2**2*ka) + 10010*
df(x1,t,3)*df(x1,t)**3*x1**11*x2**3*a1**12*( - a1*ka + 3*a1*kc - 8*a2*ka - 2*b1*ka + 8*b2*ka) + 22*df(x1,t,3)*df(x1,t)**
3*x1**11*x2**2*a1**10*vm*(3*a1**2*ka - 50*a1*a2*ka - 490*a1*b2*ka - 910*a1*b2*kc - 2250*a2**2*ka + 3150*a2*b2*ka + 585*
b1*b2*ka + 585*b2**2*ka) + 15015*df(x1,t,3)*df(x1,t)**3*x1**10*x2**4*a1**12*(2*a1*ka - 5*a1*kc + 12*a2*ka + 3*b1*ka - 12
*b2*ka) + 220*df(x1,t,3)*df(x1,t)**3*x1**10*x2**3*a1**10*vm*( - 2*a1**2*ka + 39*a1*a2*ka + 135*a1*b2*ka + 273*a1*b2*kc +
 600*a2**2*ka - 840*a2*b2*ka - 156*b1*b2*ka - 156*b2**2*ka) + 9009*df(x1,t,3)*df(x1,t)**3*x1**9*x2**5*a1**12*( - 7*a1*ka
 + 15*a1*kc - 32*a2*ka - 8*b1*ka + 32*b2*ka) + 330*df(x1,t,3)*df(x1,t)**3*x1**9*x2**4*a1**10*vm*(5*a1**2*ka - 84*a1*a2*
ka - 164*a1*b2*ka - 364*a1*b2*kc - 700*a2**2*ka + 980*a2*b2*ka + 182*b1*b2*ka + 182*b2**2*ka) + 12012*df(x1,t,3)*df(x1,t
)**3*x1**8*x2**6*a1**12*(8*a1*ka - 15*a1*kc + 28*a2*ka + 7*b1*ka - 28*b2*ka) + 264*df(x1,t,3)*df(x1,t)**3*x1**8*x2**5*a1
**10*vm*( - 15*a1**2*ka + 203*a1*a2*ka + 259*a1*b2*ka + 637*a1*b2*kc + 1050*a2**2*ka - 1470*a2*b2*ka - 273*b1*b2*ka - 
273*b2**2*ka) + 36036*df(x1,t,3)*df(x1,t)**3*x1**7*x2**7*a1**12*( - 3*a1*ka + 5*a1*kc - 8*a2*ka - 2*b1*ka + 8*b2*ka) + 
924*df(x1,t,3)*df(x1,t)**3*x1**7*x2**6*a1**10*vm*(7*a1**2*ka - 74*a1*a2*ka - 66*a1*b2*ka - 182*a1*b2*kc - 250*a2**2*ka +
 350*a2*b2*ka + 65*b1*b2*ka + 65*b2**2*ka) + 45045*df(x1,t,3)*df(x1,t)**3*x1**6*x2**8*a1**12*(2*a1*ka - 3*a1*kc + 4*a2*
ka + b1*ka - 4*b2*ka) + 264*df(x1,t,3)*df(x1,t)**3*x1**6*x2**7*a1**10*vm*( - 28*a1**2*ka + 225*a1*a2*ka + 145*a1*b2*ka +
 455*a1*b2*kc + 500*a2**2*ka - 700*a2*b2*ka - 130*b1*b2*ka - 130*b2**2*ka) + 5005*df(x1,t,3)*df(x1,t)**3*x1**5*x2**9*a1
**12*( - 11*a1*ka + 15*a1*kc - 16*a2*ka - 4*b1*ka + 16*b2*ka) + 330*df(x1,t,3)*df(x1,t)**3*x1**5*x2**8*a1**10*vm*(18*a1
**2*ka - 106*a1*a2*ka - 50*a1*b2*ka - 182*a1*b2*kc - 150*a2**2*ka + 210*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 6006*df(
x1,t,3)*df(x1,t)**3*x1**4*x2**10*a1**12*(4*a1*ka - 5*a1*kc + 4*a2*ka + b1*ka - 4*b2*ka) + 220*df(x1,t,3)*df(x1,t)**3*x1
**4*x2**9*a1**10*vm*( - 15*a1**2*ka + 61*a1*a2*ka + 21*a1*b2*ka + 91*a1*b2*kc + 50*a2**2*ka - 70*a2*b2*ka - 13*b1*b2*ka 
- 13*b2**2*ka) + 546*df(x1,t,3)*df(x1,t)**3*x1**3*x2**11*a1**12*( - 13*a1*ka + 15*a1*kc - 8*a2*ka - 2*b1*ka + 8*b2*ka) +
 22*df(x1,t,3)*df(x1,t)**3*x1**3*x2**10*a1**10*vm*(55*a1**2*ka - 138*a1*a2*ka - 34*a1*b2*ka - 182*a1*b2*kc - 50*a2**2*ka
 + 70*a2*b2*ka + 13*b1*b2*ka + 13*b2**2*ka) + 91*df(x1,t,3)*df(x1,t)**3*x1**2*x2**12*a1**12*(14*a1*ka - 15*a1*kc + 4*a2*
ka + b1*ka - 4*b2*ka) + 4*df(x1,t,3)*df(x1,t)**3*x1**2*x2**11*a1**11*vm*( - 66*a1*ka + 77*a2*ka + 13*b2*ka + 91*b2*kc) +
 105*df(x1,t,3)*df(x1,t)**3*x1*x2**13*a1**13*( - ka + kc) + 26*df(x1,t,3)*df(x1,t)**3*x1*x2**12*a1**12*ka*vm + df(x1,t,3
)*df(x1,t)**2*x1**15*a1**13*(a1*ka - 15*a1*kc + 91*a2*ka + 14*b1*ka - 91*b2*ka) + 7*df(x1,t,3)*df(x1,t)**2*x1**14*x2*a1
**13*( - 4*a1*ka + 30*a1*kc - 169*a2*ka - 26*b1*ka + 169*b2*ka) + df(x1,t,3)*df(x1,t)**2*x1**14*a1**11*vm*(16*a1*a2*ka -
 45*a1*b2*ka - 91*a1*b2*kc - 352*a2**2*ka + 462*a2*b2*ka + 78*b1*b2*ka + 78*b2**2*ka) + 273*df(x1,t,3)*df(x1,t)**2*x1**
13*x2**2*a1**13*(a1*ka - 5*a1*kc + 26*a2*ka + 4*b1*ka - 26*b2*ka) + df(x1,t,3)*df(x1,t)**2*x1**13*x2*a1**11*vm*( - a1**2
*ka - 146*a1*a2*ka + 534*a1*b2*ka + 1092*a1*b2*kc + 3872*a2**2*ka - 5082*a2*b2*ka - 858*b1*b2*ka - 858*b2**2*ka) + 182*
df(x1,t,3)*df(x1,t)**2*x1**12*x2**3*a1**13*( - 8*a1*ka + 30*a1*kc - 143*a2*ka - 22*b1*ka + 143*b2*ka) + 2*df(x1,t,3)*df(
x1,t)**2*x1**12*x2**2*a1**11*vm*(10*a1**2*ka + 275*a1*a2*ka - 1452*a1*b2*ka - 3003*a1*b2*kc - 9680*a2**2*ka + 12705*a2*
b2*ka + 2145*b1*b2*ka + 2145*b2**2*ka) + 5005*df(x1,t,3)*df(x1,t)**2*x1**11*x2**4*a1**13*(a1*ka - 3*a1*kc + 13*a2*ka + 2
*b1*ka - 13*b2*ka) + 22*df(x1,t,3)*df(x1,t)**2*x1**11*x2**3*a1**11*vm*( - 7*a1**2*ka - 45*a1*a2*ka + 435*a1*b2*ka + 910*
a1*b2*kc + 2640*a2**2*ka - 3465*a2*b2*ka - 585*b1*b2*ka - 585*b2**2*ka) + 3003*df(x1,t,3)*df(x1,t)**2*x1**10*x2**5*a1**
13*( - 4*a1*ka + 10*a1*kc - 39*a2*ka - 6*b1*ka + 39*b2*ka) + 165*df(x1,t,3)*df(x1,t)**2*x1**10*x2**4*a1**11*vm*(4*a1**2*
ka + 2*a1*a2*ka - 129*a1*b2*ka - 273*a1*b2*kc - 704*a2**2*ka + 924*a2*b2*ka + 156*b1*b2*ka + 156*b2**2*ka) + 3003*df(x1,
t,3)*df(x1,t)**2*x1**9*x2**6*a1**13*(7*a1*ka - 15*a1*kc + 52*a2*ka + 8*b1*ka - 52*b2*ka) + 33*df(x1,t,3)*df(x1,t)**2*x1
**9*x2**5*a1**11*vm*( - 55*a1**2*ka + 76*a1*a2*ka + 1020*a1*b2*ka + 2184*a1*b2*kc + 4928*a2**2*ka - 6468*a2*b2*ka - 1092
*b1*b2*ka - 1092*b2**2*ka) + 1716*df(x1,t,3)*df(x1,t)**2*x1**8*x2**7*a1**13*( - 16*a1*ka + 30*a1*kc - 91*a2*ka - 14*b1*
ka + 91*b2*ka) + 132*df(x1,t,3)*df(x1,t)**2*x1**8*x2**6*a1**11*vm*(26*a1**2*ka - 49*a1*a2*ka - 294*a1*b2*ka - 637*a1*b2*
kc - 1232*a2**2*ka + 1617*a2*b2*ka + 273*b1*b2*ka + 273*b2**2*ka) + 9009*df(x1,t,3)*df(x1,t)**2*x1**7*x2**8*a1**13*(3*a1
*ka - 5*a1*kc + 13*a2*ka + 2*b1*ka - 13*b2*ka) + 132*df(x1,t,3)*df(x1,t)**2*x1**7*x2**7*a1**11*vm*( - 35*a1**2*ka + 65*
a1*a2*ka + 249*a1*b2*ka + 546*a1*b2*kc + 880*a2**2*ka - 1155*a2*b2*ka - 195*b1*b2*ka - 195*b2**2*ka) + 5005*df(x1,t,3)*
df(x1,t)**2*x1**6*x2**9*a1**13*( - 4*a1*ka + 6*a1*kc - 13*a2*ka - 2*b1*ka + 13*b2*ka) + 33*df(x1,t,3)*df(x1,t)**2*x1**6*
x2**8*a1**11*vm*(136*a1**2*ka - 220*a1*a2*ka - 615*a1*b2*ka - 1365*a1*b2*kc - 1760*a2**2*ka + 2310*a2*b2*ka + 390*b1*b2*
ka + 390*b2**2*ka) + 1001*df(x1,t,3)*df(x1,t)**2*x1**5*x2**10*a1**13*(11*a1*ka - 15*a1*kc + 26*a2*ka + 4*b1*ka - 26*b2*
ka) + 55*df(x1,t,3)*df(x1,t)**2*x1**5*x2**9*a1**11*vm*( - 57*a1**2*ka + 74*a1*a2*ka + 162*a1*b2*ka + 364*a1*b2*kc + 352*
a2**2*ka - 462*a2*b2*ka - 78*b1*b2*ka - 78*b2**2*ka) + 546*df(x1,t,3)*df(x1,t)**2*x1**4*x2**11*a1**13*( - 8*a1*ka + 10*
a1*kc - 13*a2*ka - 2*b1*ka + 13*b2*ka) + 22*df(x1,t,3)*df(x1,t)**2*x1**4*x2**10*a1**11*vm*(70*a1**2*ka - 67*a1*a2*ka - 
120*a1*b2*ka - 273*a1*b2*kc - 176*a2**2*ka + 231*a2*b2*ka + 39*b1*b2*ka + 39*b2**2*ka) + 91*df(x1,t,3)*df(x1,t)**2*x1**3
*x2**12*a1**13*(13*a1*ka - 15*a1*kc + 13*a2*ka + 2*b1*ka - 13*b2*ka) + 2*df(x1,t,3)*df(x1,t)**2*x1**3*x2**11*a1**11*vm*(
 - 253*a1**2*ka + 157*a1*a2*ka + 237*a1*b2*ka + 546*a1*b2*kc + 176*a2**2*ka - 231*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) 
+ 7*df(x1,t,3)*df(x1,t)**2*x1**2*x2**13*a1**13*( - 28*a1*ka + 30*a1*kc - 13*a2*ka - 2*b1*ka + 13*b2*ka) + df(x1,t,3)*df(
x1,t)**2*x1**2*x2**12*a1**12*vm*(100*a1*ka - 30*a2*ka - 39*b2*ka - 91*b2*kc) + 15*df(x1,t,3)*df(x1,t)**2*x1*x2**14*a1**
14*(ka - kc) - 9*df(x1,t,3)*df(x1,t)**2*x1*x2**13*a1**13*ka*vm + df(x1,t,3)*df(x1,t)*x1**16*a1**14*( - a1*kc + 14*a2*ka 
+ b1*ka - 14*b2*ka) + df(x1,t,3)*df(x1,t)*x1**15*x2*a1**14*( - a1*ka + 15*a1*kc - 196*a2*ka - 14*b1*ka + 196*b2*ka) + df
(x1,t,3)*df(x1,t)*x1**15*a1**12*vm*(2*a1*a2*ka - 4*a1*b2*ka - 14*a1*b2*kc - 68*a2**2*ka + 84*a2*b2*ka + 13*b1*b2*ka + 13
*b2**2*ka) + 7*df(x1,t,3)*df(x1,t)*x1**14*x2**2*a1**14*(2*a1*ka - 15*a1*kc + 182*a2*ka + 13*b1*ka - 182*b2*ka) + 2*df(x1
,t,3)*df(x1,t)*x1**14*x2*a1**12*vm*( - 14*a1*a2*ka + 29*a1*b2*ka + 91*a1*b2*kc + 408*a2**2*ka - 504*a2*b2*ka - 78*b1*b2*
ka - 78*b2**2*ka) + 91*df(x1,t,3)*df(x1,t)*x1**13*x2**3*a1**14*( - a1*ka + 5*a1*kc - 56*a2*ka - 4*b1*ka + 56*b2*ka) + df
(x1,t,3)*df(x1,t)*x1**13*x2**2*a1**12*vm*(a1**2*ka + 180*a1*a2*ka - 384*a1*b2*ka - 1092*a1*b2*kc - 4488*a2**2*ka + 5544*
a2*b2*ka + 858*b1*b2*ka + 858*b2**2*ka) + 91*df(x1,t,3)*df(x1,t)*x1**12*x2**4*a1**14*(4*a1*ka - 15*a1*kc + 154*a2*ka + 
11*b1*ka - 154*b2*ka) + 4*df(x1,t,3)*df(x1,t)*x1**12*x2**3*a1**12*vm*( - 3*a1**2*ka - 176*a1*a2*ka + 385*a1*b2*ka + 1001
*a1*b2*kc + 3740*a2**2*ka - 4620*a2*b2*ka - 715*b1*b2*ka - 715*b2**2*ka) + 1001*df(x1,t,3)*df(x1,t)*x1**11*x2**5*a1**14*
( - a1*ka + 3*a1*kc - 28*a2*ka - 2*b1*ka + 28*b2*ka) + 11*df(x1,t,3)*df(x1,t)*x1**11*x2**4*a1**12*vm*(6*a1**2*ka + 170*
a1*a2*ka - 380*a1*b2*ka - 910*a1*b2*kc - 3060*a2**2*ka + 3780*a2*b2*ka + 585*b1*b2*ka + 585*b2**2*ka) + 1001*df(x1,t,3)*
df(x1,t)*x1**10*x2**6*a1**14*(2*a1*ka - 5*a1*kc + 42*a2*ka + 3*b1*ka - 42*b2*ka) + 22*df(x1,t,3)*df(x1,t)*x1**10*x2**5*
a1**12*vm*( - 10*a1**2*ka - 162*a1*a2*ka + 369*a1*b2*ka + 819*a1*b2*kc + 2448*a2**2*ka - 3024*a2*b2*ka - 468*b1*b2*ka - 
468*b2**2*ka) + 429*df(x1,t,3)*df(x1,t)*x1**9*x2**7*a1**14*( - 7*a1*ka + 15*a1*kc - 112*a2*ka - 8*b1*ka + 112*b2*ka) + 
33*df(x1,t,3)*df(x1,t)*x1**9*x2**6*a1**12*vm*(15*a1**2*ka + 152*a1*a2*ka - 352*a1*b2*ka - 728*a1*b2*kc - 1904*a2**2*ka +
 2352*a2*b2*ka + 364*b1*b2*ka + 364*b2**2*ka) + 429*df(x1,t,3)*df(x1,t)*x1**8*x2**8*a1**14*(8*a1*ka - 15*a1*kc + 98*a2*
ka + 7*b1*ka - 98*b2*ka) + 264*df(x1,t,3)*df(x1,t)*x1**8*x2**7*a1**12*vm*( - 3*a1**2*ka - 20*a1*a2*ka + 47*a1*b2*ka + 91
*a1*b2*kc + 204*a2**2*ka - 252*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) + 1001*df(x1,t,3)*df(x1,t)*x1**7*x2**9*a1**14*( - 3
*a1*ka + 5*a1*kc - 28*a2*ka - 2*b1*ka + 28*b2*ka) + 33*df(x1,t,3)*df(x1,t)*x1**7*x2**8*a1**12*vm*(28*a1**2*ka + 126*a1*
a2*ka - 300*a1*b2*ka - 546*a1*b2*kc - 1020*a2**2*ka + 1260*a2*b2*ka + 195*b1*b2*ka + 195*b2**2*ka) + 1001*df(x1,t,3)*df(
x1,t)*x1**6*x2**10*a1**14*(2*a1*ka - 3*a1*kc + 14*a2*ka + b1*ka - 14*b2*ka) + 22*df(x1,t,3)*df(x1,t)*x1**6*x2**9*a1**12*
vm*( - 36*a1**2*ka - 110*a1*a2*ka + 265*a1*b2*ka + 455*a1*b2*kc + 680*a2**2*ka - 840*a2*b2*ka - 130*b1*b2*ka - 130*b2**2
*ka) + 91*df(x1,t,3)*df(x1,t)*x1**5*x2**11*a1**14*( - 11*a1*ka + 15*a1*kc - 56*a2*ka - 4*b1*ka + 56*b2*ka) + 11*df(x1,t,
3)*df(x1,t)*x1**5*x2**10*a1**12*vm*(45*a1**2*ka + 92*a1*a2*ka - 224*a1*b2*ka - 364*a1*b2*kc - 408*a2**2*ka + 504*a2*b2*
ka + 78*b1*b2*ka + 78*b2**2*ka) + 91*df(x1,t,3)*df(x1,t)*x1**4*x2**12*a1**14*(4*a1*ka - 5*a1*kc + 14*a2*ka + b1*ka - 14*
b2*ka) + 4*df(x1,t,3)*df(x1,t)*x1**4*x2**11*a1**12*vm*( - 55*a1**2*ka - 72*a1*a2*ka + 177*a1*b2*ka + 273*a1*b2*kc + 204*
a2**2*ka - 252*a2*b2*ka - 39*b1*b2*ka - 39*b2**2*ka) + 7*df(x1,t,3)*df(x1,t)*x1**3*x2**13*a1**14*( - 13*a1*ka + 15*a1*kc
 - 28*a2*ka - 2*b1*ka + 28*b2*ka) + df(x1,t,3)*df(x1,t)*x1**3*x2**12*a1**12*vm*(66*a1**2*ka + 50*a1*a2*ka - 124*a1*b2*ka
 - 182*a1*b2*kc - 68*a2**2*ka + 84*a2*b2*ka + 13*b1*b2*ka + 13*b2**2*ka) + df(x1,t,3)*df(x1,t)*x1**2*x2**14*a1**14*(14*
a1*ka - 15*a1*kc + 14*a2*ka + b1*ka - 14*b2*ka) + 2*df(x1,t,3)*df(x1,t)*x1**2*x2**13*a1**13*vm*( - 6*a1*ka - 2*a2*ka + 5
*b2*ka + 7*b2*kc) + df(x1,t,3)*df(x1,t)*x1*x2**15*a1**15*( - ka + kc) + df(x1,t,3)*df(x1,t)*x1*x2**14*a1**14*ka*vm + df(
x1,t,3)*x1**17*a1**15*ka*(a2 - b2) + 15*df(x1,t,3)*x1**16*x2*a1**15*ka*( - a2 + b2) + df(x1,t,3)*x1**16*a1**13*vm*( - a1
*b2*kc - 6*a2**2*ka + 7*a2*b2*ka + b1*b2*ka + b2**2*ka) + 105*df(x1,t,3)*x1**15*x2**2*a1**15*ka*(a2 - b2) + df(x1,t,3)*
x1**15*x2*a1**13*vm*( - a1*a2*ka + a1*b2*ka + 14*a1*b2*kc + 78*a2**2*ka - 91*a2*b2*ka - 13*b1*b2*ka - 13*b2**2*ka) + 455
*df(x1,t,3)*x1**14*x2**3*a1**15*ka*( - a2 + b2) + 13*df(x1,t,3)*x1**14*x2**2*a1**13*vm*(a1*a2*ka - a1*b2*ka - 7*a1*b2*kc
 - 36*a2**2*ka + 42*a2*b2*ka + 6*b1*b2*ka + 6*b2**2*ka) + 1365*df(x1,t,3)*x1**13*x2**4*a1**15*ka*(a2 - b2) + 26*df(x1,t,
3)*x1**13*x2**3*a1**13*vm*( - 3*a1*a2*ka + 3*a1*b2*ka + 14*a1*b2*kc + 66*a2**2*ka - 77*a2*b2*ka - 11*b1*b2*ka - 11*b2**2
*ka) + 3003*df(x1,t,3)*x1**12*x2**5*a1**15*ka*( - a2 + b2) + 143*df(x1,t,3)*x1**12*x2**4*a1**13*vm*(2*a1*a2*ka - 2*a1*b2
*ka - 7*a1*b2*kc - 30*a2**2*ka + 35*a2*b2*ka + 5*b1*b2*ka + 5*b2**2*ka) + 5005*df(x1,t,3)*x1**11*x2**6*a1**15*ka*(a2 - 
b2) + 143*df(x1,t,3)*x1**11*x2**5*a1**13*vm*( - 5*a1*a2*ka + 5*a1*b2*ka + 14*a1*b2*kc + 54*a2**2*ka - 63*a2*b2*ka - 9*b1
*b2*ka - 9*b2**2*ka) + 6435*df(x1,t,3)*x1**10*x2**7*a1**15*ka*( - a2 + b2) + 429*df(x1,t,3)*x1**10*x2**6*a1**13*vm*(3*a1
*a2*ka - 3*a1*b2*ka - 7*a1*b2*kc - 24*a2**2*ka + 28*a2*b2*ka + 4*b1*b2*ka + 4*b2**2*ka) + 6435*df(x1,t,3)*x1**9*x2**8*a1
**15*ka*(a2 - b2) + 1716*df(x1,t,3)*x1**9*x2**7*a1**13*vm*( - a1*a2*ka + a1*b2*ka + 2*a1*b2*kc + 6*a2**2*ka - 7*a2*b2*ka
 - b1*b2*ka - b2**2*ka) + 5005*df(x1,t,3)*x1**8*x2**9*a1**15*ka*( - a2 + b2) + 429*df(x1,t,3)*x1**8*x2**8*a1**13*vm*(4*
a1*a2*ka - 4*a1*b2*ka - 7*a1*b2*kc - 18*a2**2*ka + 21*a2*b2*ka + 3*b1*b2*ka + 3*b2**2*ka) + 3003*df(x1,t,3)*x1**7*x2**10
*a1**15*ka*(a2 - b2) + 143*df(x1,t,3)*x1**7*x2**9*a1**13*vm*( - 9*a1*a2*ka + 9*a1*b2*ka + 14*a1*b2*kc + 30*a2**2*ka - 35
*a2*b2*ka - 5*b1*b2*ka - 5*b2**2*ka) + 1365*df(x1,t,3)*x1**6*x2**11*a1**15*ka*( - a2 + b2) + 143*df(x1,t,3)*x1**6*x2**10
*a1**13*vm*(5*a1*a2*ka - 5*a1*b2*ka - 7*a1*b2*kc - 12*a2**2*ka + 14*a2*b2*ka + 2*b1*b2*ka + 2*b2**2*ka) + 455*df(x1,t,3)
*x1**5*x2**12*a1**15*ka*(a2 - b2) + 26*df(x1,t,3)*x1**5*x2**11*a1**13*vm*( - 11*a1*a2*ka + 11*a1*b2*ka + 14*a1*b2*kc + 
18*a2**2*ka - 21*a2*b2*ka - 3*b1*b2*ka - 3*b2**2*ka) + 105*df(x1,t,3)*x1**4*x2**13*a1**15*ka*( - a2 + b2) + 13*df(x1,t,3
)*x1**4*x2**12*a1**13*vm*(6*a1*a2*ka - 6*a1*b2*ka - 7*a1*b2*kc - 6*a2**2*ka + 7*a2*b2*ka + b1*b2*ka + b2**2*ka) + 15*df(
x1,t,3)*x1**3*x2**14*a1**15*ka*(a2 - b2) + df(x1,t,3)*x1**3*x2**13*a1**13*vm*( - 13*a1*a2*ka + 13*a1*b2*ka + 14*a1*b2*kc
 + 6*a2**2*ka - 7*a2*b2*ka - b1*b2*ka - b2**2*ka) + df(x1,t,3)*x1**2*x2**15*a1**15*ka*( - a2 + b2) + df(x1,t,3)*x1**2*x2
**14*a1**14*vm*(a2*ka - b2*ka - b2*kc) + 6*df(x1,t,2)**4*df(x1,t)**10*x1**3*ka*vm + 60*df(x1,t,2)**4*df(x1,t)**9*x1**4*
a1*ka*vm - 60*df(x1,t,2)**4*df(x1,t)**9*x1**3*x2*a1*ka*vm + 270*df(x1,t,2)**4*df(x1,t)**8*x1**5*a1**2*ka*vm - 540*df(x1,
t,2)**4*df(x1,t)**8*x1**4*x2*a1**2*ka*vm + 270*df(x1,t,2)**4*df(x1,t)**8*x1**3*x2**2*a1**2*ka*vm + 720*df(x1,t,2)**4*df(
x1,t)**7*x1**6*a1**3*ka*vm - 2160*df(x1,t,2)**4*df(x1,t)**7*x1**5*x2*a1**3*ka*vm + 2160*df(x1,t,2)**4*df(x1,t)**7*x1**4*
x2**2*a1**3*ka*vm - 720*df(x1,t,2)**4*df(x1,t)**7*x1**3*x2**3*a1**3*ka*vm + 1260*df(x1,t,2)**4*df(x1,t)**6*x1**7*a1**4*
ka*vm - 5040*df(x1,t,2)**4*df(x1,t)**6*x1**6*x2*a1**4*ka*vm + 7560*df(x1,t,2)**4*df(x1,t)**6*x1**5*x2**2*a1**4*ka*vm - 
5040*df(x1,t,2)**4*df(x1,t)**6*x1**4*x2**3*a1**4*ka*vm + 1260*df(x1,t,2)**4*df(x1,t)**6*x1**3*x2**4*a1**4*ka*vm + 1512*
df(x1,t,2)**4*df(x1,t)**5*x1**8*a1**5*ka*vm - 7560*df(x1,t,2)**4*df(x1,t)**5*x1**7*x2*a1**5*ka*vm + 15120*df(x1,t,2)**4*
df(x1,t)**5*x1**6*x2**2*a1**5*ka*vm - 15120*df(x1,t,2)**4*df(x1,t)**5*x1**5*x2**3*a1**5*ka*vm + 7560*df(x1,t,2)**4*df(x1
,t)**5*x1**4*x2**4*a1**5*ka*vm - 1512*df(x1,t,2)**4*df(x1,t)**5*x1**3*x2**5*a1**5*ka*vm + 1260*df(x1,t,2)**4*df(x1,t)**4
*x1**9*a1**6*ka*vm - 7560*df(x1,t,2)**4*df(x1,t)**4*x1**8*x2*a1**6*ka*vm + 18900*df(x1,t,2)**4*df(x1,t)**4*x1**7*x2**2*
a1**6*ka*vm - 25200*df(x1,t,2)**4*df(x1,t)**4*x1**6*x2**3*a1**6*ka*vm + 18900*df(x1,t,2)**4*df(x1,t)**4*x1**5*x2**4*a1**
6*ka*vm - 7560*df(x1,t,2)**4*df(x1,t)**4*x1**4*x2**5*a1**6*ka*vm + 1260*df(x1,t,2)**4*df(x1,t)**4*x1**3*x2**6*a1**6*ka*
vm + 720*df(x1,t,2)**4*df(x1,t)**3*x1**10*a1**7*ka*vm - 5040*df(x1,t,2)**4*df(x1,t)**3*x1**9*x2*a1**7*ka*vm + 15120*df(
x1,t,2)**4*df(x1,t)**3*x1**8*x2**2*a1**7*ka*vm - 25200*df(x1,t,2)**4*df(x1,t)**3*x1**7*x2**3*a1**7*ka*vm + 25200*df(x1,t
,2)**4*df(x1,t)**3*x1**6*x2**4*a1**7*ka*vm - 15120*df(x1,t,2)**4*df(x1,t)**3*x1**5*x2**5*a1**7*ka*vm + 5040*df(x1,t,2)**
4*df(x1,t)**3*x1**4*x2**6*a1**7*ka*vm - 720*df(x1,t,2)**4*df(x1,t)**3*x1**3*x2**7*a1**7*ka*vm + 270*df(x1,t,2)**4*df(x1,
t)**2*x1**11*a1**8*ka*vm - 2160*df(x1,t,2)**4*df(x1,t)**2*x1**10*x2*a1**8*ka*vm + 7560*df(x1,t,2)**4*df(x1,t)**2*x1**9*
x2**2*a1**8*ka*vm - 15120*df(x1,t,2)**4*df(x1,t)**2*x1**8*x2**3*a1**8*ka*vm + 18900*df(x1,t,2)**4*df(x1,t)**2*x1**7*x2**
4*a1**8*ka*vm - 15120*df(x1,t,2)**4*df(x1,t)**2*x1**6*x2**5*a1**8*ka*vm + 7560*df(x1,t,2)**4*df(x1,t)**2*x1**5*x2**6*a1
**8*ka*vm - 2160*df(x1,t,2)**4*df(x1,t)**2*x1**4*x2**7*a1**8*ka*vm + 270*df(x1,t,2)**4*df(x1,t)**2*x1**3*x2**8*a1**8*ka*
vm + 60*df(x1,t,2)**4*df(x1,t)*x1**12*a1**9*ka*vm - 540*df(x1,t,2)**4*df(x1,t)*x1**11*x2*a1**9*ka*vm + 2160*df(x1,t,2)**
4*df(x1,t)*x1**10*x2**2*a1**9*ka*vm - 5040*df(x1,t,2)**4*df(x1,t)*x1**9*x2**3*a1**9*ka*vm + 7560*df(x1,t,2)**4*df(x1,t)*
x1**8*x2**4*a1**9*ka*vm - 7560*df(x1,t,2)**4*df(x1,t)*x1**7*x2**5*a1**9*ka*vm + 5040*df(x1,t,2)**4*df(x1,t)*x1**6*x2**6*
a1**9*ka*vm - 2160*df(x1,t,2)**4*df(x1,t)*x1**5*x2**7*a1**9*ka*vm + 540*df(x1,t,2)**4*df(x1,t)*x1**4*x2**8*a1**9*ka*vm -
 60*df(x1,t,2)**4*df(x1,t)*x1**3*x2**9*a1**9*ka*vm + 6*df(x1,t,2)**4*x1**13*a1**10*ka*vm - 60*df(x1,t,2)**4*x1**12*x2*a1
**10*ka*vm + 270*df(x1,t,2)**4*x1**11*x2**2*a1**10*ka*vm - 720*df(x1,t,2)**4*x1**10*x2**3*a1**10*ka*vm + 1260*df(x1,t,2)
**4*x1**9*x2**4*a1**10*ka*vm - 1512*df(x1,t,2)**4*x1**8*x2**5*a1**10*ka*vm + 1260*df(x1,t,2)**4*x1**7*x2**6*a1**10*ka*vm
 - 720*df(x1,t,2)**4*x1**6*x2**7*a1**10*ka*vm + 270*df(x1,t,2)**4*x1**5*x2**8*a1**10*ka*vm - 60*df(x1,t,2)**4*x1**4*x2**
9*a1**10*ka*vm + 6*df(x1,t,2)**4*x1**3*x2**10*a1**10*ka*vm - 15*df(x1,t,2)**3*df(x1,t)**12*x1**2*ka*vm + 2*df(x1,t,2)**3
*df(x1,t)**11*x1**3*ka*vm*( - 72*a1 - b1 + 3*b2) + 164*df(x1,t,2)**3*df(x1,t)**11*x1**2*x2*a1*ka*vm + 2*df(x1,t,2)**3*df
(x1,t)**10*x1**4*a1*ka*vm*( - 309*a1 - 12*a2 - 11*b1 + 33*b2) + 2*df(x1,t,2)**3*df(x1,t)**10*x1**3*x2*a1*ka*vm*(716*a1 +
 12*a2 + 11*b1 - 33*b2) - 814*df(x1,t,2)**3*df(x1,t)**10*x1**2*x2**2*a1**2*ka*vm + 10*df(x1,t,2)**3*df(x1,t)**9*x1**5*a1
**2*ka*vm*( - 156*a1 - 24*a2 - 11*b1 + 33*b2) + 20*df(x1,t,2)**3*df(x1,t)**9*x1**4*x2*a1**2*ka*vm*(277*a1 + 24*a2 + 11*
b1 - 33*b2) + 10*df(x1,t,2)**3*df(x1,t)**9*x1**3*x2**2*a1**2*ka*vm*( - 640*a1 - 24*a2 - 11*b1 + 33*b2) + 2420*df(x1,t,2)
**3*df(x1,t)**9*x1**2*x2**3*a1**3*ka*vm + 15*df(x1,t,2)**3*df(x1,t)**8*x1**6*a1**3*ka*vm*( - 171*a1 - 72*a2 - 22*b1 + 66
*b2) + 30*df(x1,t,2)**3*df(x1,t)**8*x1**5*x2*a1**3*ka*vm*(416*a1 + 108*a2 + 33*b1 - 99*b2) + 90*df(x1,t,2)**3*df(x1,t)**
8*x1**4*x2**2*a1**3*ka*vm*( - 245*a1 - 36*a2 - 11*b1 + 33*b2) + 30*df(x1,t,2)**3*df(x1,t)**8*x1**3*x2**3*a1**3*ka*vm*(
564*a1 + 36*a2 + 11*b1 - 33*b2) - 4785*df(x1,t,2)**3*df(x1,t)**8*x1**2*x2**4*a1**4*ka*vm + 60*df(x1,t,2)**3*df(x1,t)**7*
x1**7*a1**4*ka*vm*( - 48*a1 - 48*a2 - 11*b1 + 33*b2) + 120*df(x1,t,2)**3*df(x1,t)**7*x1**6*x2*a1**4*ka*vm*(151*a1 + 96*
a2 + 22*b1 - 66*b2) + 120*df(x1,t,2)**3*df(x1,t)**7*x1**5*x2**2*a1**4*ka*vm*( - 364*a1 - 144*a2 - 33*b1 + 99*b2) + 240*
df(x1,t,2)**3*df(x1,t)**7*x1**4*x2**3*a1**4*ka*vm*(213*a1 + 48*a2 + 11*b1 - 33*b2) + 60*df(x1,t,2)**3*df(x1,t)**7*x1**3*
x2**4*a1**4*ka*vm*( - 488*a1 - 48*a2 - 11*b1 + 33*b2) + 6600*df(x1,t,2)**3*df(x1,t)**7*x1**2*x2**5*a1**5*ka*vm + 84*df(
x1,t,2)**3*df(x1,t)**6*x1**8*a1**5*ka*vm*( - 27*a1 - 60*a2 - 11*b1 + 33*b2) + 84*df(x1,t,2)**3*df(x1,t)**6*x1**7*x2*a1**
5*ka*vm*(212*a1 + 300*a2 + 55*b1 - 165*b2) + 420*df(x1,t,2)**3*df(x1,t)**6*x1**6*x2**2*a1**5*ka*vm*( - 131*a1 - 120*a2 -
 22*b1 + 66*b2) + 840*df(x1,t,2)**3*df(x1,t)**6*x1**5*x2**3*a1**5*ka*vm*(104*a1 + 60*a2 + 11*b1 - 33*b2) + 420*df(x1,t,2
)**3*df(x1,t)**6*x1**4*x2**4*a1**5*ka*vm*( - 181*a1 - 60*a2 - 11*b1 + 33*b2) + 84*df(x1,t,2)**3*df(x1,t)**6*x1**3*x2**5*
a1**5*ka*vm*(412*a1 + 60*a2 + 11*b1 - 33*b2) - 6468*df(x1,t,2)**3*df(x1,t)**6*x1**2*x2**6*a1**6*ka*vm + 12*df(x1,t,2)**3
*df(x1,t)**5*x1**9*a1**6*ka*vm*( - 108*a1 - 504*a2 - 77*b1 + 231*b2) + 168*df(x1,t,2)**3*df(x1,t)**5*x1**8*x2*a1**6*ka*
vm*(73*a1 + 216*a2 + 33*b1 - 99*b2) + 252*df(x1,t,2)**3*df(x1,t)**5*x1**7*x2**2*a1**6*ka*vm*( - 184*a1 - 360*a2 - 55*b1 
+ 165*b2) + 840*df(x1,t,2)**3*df(x1,t)**5*x1**6*x2**3*a1**6*ka*vm*(111*a1 + 144*a2 + 22*b1 - 66*b2) + 420*df(x1,t,2)**3*
df(x1,t)**5*x1**5*x2**4*a1**6*ka*vm*( - 260*a1 - 216*a2 - 33*b1 + 99*b2) + 504*df(x1,t,2)**3*df(x1,t)**5*x1**4*x2**5*a1
**6*ka*vm*(149*a1 + 72*a2 + 11*b1 - 33*b2) + 84*df(x1,t,2)**3*df(x1,t)**5*x1**3*x2**6*a1**6*ka*vm*( - 336*a1 - 72*a2 - 
11*b1 + 33*b2) + 4488*df(x1,t,2)**3*df(x1,t)**5*x1**2*x2**7*a1**7*ka*vm + 15*df(x1,t,2)**3*df(x1,t)**4*x1**10*a1**7*ka*
vm*( - 39*a1 - 336*a2 - 44*b1 + 132*b2) + 60*df(x1,t,2)**3*df(x1,t)**4*x1**9*x2*a1**7*ka*vm*(104*a1 + 588*a2 + 77*b1 - 
231*b2) + 420*df(x1,t,2)**3*df(x1,t)**4*x1**8*x2**2*a1**7*ka*vm*( - 65*a1 - 252*a2 - 33*b1 + 99*b2) + 420*df(x1,t,2)**3*
df(x1,t)**4*x1**7*x2**3*a1**7*ka*vm*(156*a1 + 420*a2 + 55*b1 - 165*b2) + 1050*df(x1,t,2)**3*df(x1,t)**4*x1**6*x2**4*a1**
7*ka*vm*( - 91*a1 - 168*a2 - 22*b1 + 66*b2) + 420*df(x1,t,2)**3*df(x1,t)**4*x1**5*x2**5*a1**7*ka*vm*(208*a1 + 252*a2 + 
33*b1 - 99*b2) + 420*df(x1,t,2)**3*df(x1,t)**4*x1**4*x2**6*a1**7*ka*vm*( - 117*a1 - 84*a2 - 11*b1 + 33*b2) + 60*df(x1,t,
2)**3*df(x1,t)**4*x1**3*x2**7*a1**7*ka*vm*(260*a1 + 84*a2 + 11*b1 - 33*b2) - 2145*df(x1,t,2)**3*df(x1,t)**4*x1**2*x2**8*
a1**8*ka*vm + 30*df(x1,t,2)**3*df(x1,t)**3*x1**11*a1**8*ka*vm*( - 8*a1 - 96*a2 - 11*b1 + 33*b2) + 60*df(x1,t,2)**3*df(x1
,t)**3*x1**10*x2*a1**8*ka*vm*(43*a1 + 384*a2 + 44*b1 - 132*b2) + 120*df(x1,t,2)**3*df(x1,t)**3*x1**9*x2**2*a1**8*ka*vm*(
 - 100*a1 - 672*a2 - 77*b1 + 231*b2) + 1680*df(x1,t,2)**3*df(x1,t)**3*x1**8*x2**3*a1**8*ka*vm*(19*a1 + 96*a2 + 11*b1 - 
33*b2) + 420*df(x1,t,2)**3*df(x1,t)**3*x1**7*x2**4*a1**8*ka*vm*( - 128*a1 - 480*a2 - 55*b1 + 165*b2) + 840*df(x1,t,2)**3
*df(x1,t)**3*x1**6*x2**5*a1**8*ka*vm*(71*a1 + 192*a2 + 22*b1 - 66*b2) + 840*df(x1,t,2)**3*df(x1,t)**3*x1**5*x2**6*a1**8*
ka*vm*( - 52*a1 - 96*a2 - 11*b1 + 33*b2) + 240*df(x1,t,2)**3*df(x1,t)**3*x1**4*x2**7*a1**8*ka*vm*(85*a1 + 96*a2 + 11*b1 
- 33*b2) + 30*df(x1,t,2)**3*df(x1,t)**3*x1**3*x2**8*a1**8*ka*vm*( - 184*a1 - 96*a2 - 11*b1 + 33*b2) + 660*df(x1,t,2)**3*
df(x1,t)**3*x1**2*x2**9*a1**9*ka*vm + 10*df(x1,t,2)**3*df(x1,t)**2*x1**12*a1**9*ka*vm*( - 9*a1 - 108*a2 - 11*b1 + 33*b2)
 + 10*df(x1,t,2)**3*df(x1,t)**2*x1**11*x2*a1**9*ka*vm*(92*a1 + 972*a2 + 99*b1 - 297*b2) + 90*df(x1,t,2)**3*df(x1,t)**2*
x1**10*x2**2*a1**9*ka*vm*( - 47*a1 - 432*a2 - 44*b1 + 132*b2) + 120*df(x1,t,2)**3*df(x1,t)**2*x1**9*x2**3*a1**9*ka*vm*(
96*a1 + 756*a2 + 77*b1 - 231*b2) + 420*df(x1,t,2)**3*df(x1,t)**2*x1**8*x2**4*a1**9*ka*vm*( - 49*a1 - 324*a2 - 33*b1 + 99
*b2) + 1260*df(x1,t,2)**3*df(x1,t)**2*x1**7*x2**5*a1**9*ka*vm*(20*a1 + 108*a2 + 11*b1 - 33*b2) + 420*df(x1,t,2)**3*df(x1
,t)**2*x1**6*x2**6*a1**9*ka*vm*( - 51*a1 - 216*a2 - 22*b1 + 66*b2) + 120*df(x1,t,2)**3*df(x1,t)**2*x1**5*x2**7*a1**9*ka*
vm*(104*a1 + 324*a2 + 33*b1 - 99*b2) + 90*df(x1,t,2)**3*df(x1,t)**2*x1**4*x2**8*a1**9*ka*vm*( - 53*a1 - 108*a2 - 11*b1 +
 33*b2) + 10*df(x1,t,2)**3*df(x1,t)**2*x1**3*x2**9*a1**9*ka*vm*(108*a1 + 108*a2 + 11*b1 - 33*b2) - 110*df(x1,t,2)**3*df(
x1,t)**2*x1**2*x2**10*a1**10*ka*vm + 2*df(x1,t,2)**3*df(x1,t)*x1**13*a1**10*ka*vm*( - 12*a1 - 120*a2 - 11*b1 + 33*b2) + 
4*df(x1,t,2)**3*df(x1,t)*x1**12*x2*a1**10*ka*vm*(61*a1 + 600*a2 + 55*b1 - 165*b2) + 10*df(x1,t,2)**3*df(x1,t)*x1**11*x2
**2*a1**10*ka*vm*( - 112*a1 - 1080*a2 - 99*b1 + 297*b2) + 60*df(x1,t,2)**3*df(x1,t)*x1**10*x2**3*a1**10*ka*vm*(51*a1 + 
480*a2 + 44*b1 - 132*b2) + 60*df(x1,t,2)**3*df(x1,t)*x1**9*x2**4*a1**10*ka*vm*( - 92*a1 - 840*a2 - 77*b1 + 231*b2) + 168
*df(x1,t,2)**3*df(x1,t)*x1**8*x2**5*a1**10*ka*vm*(41*a1 + 360*a2 + 33*b1 - 99*b2) + 84*df(x1,t,2)**3*df(x1,t)*x1**7*x2**
6*a1**10*ka*vm*( - 72*a1 - 600*a2 - 55*b1 + 165*b2) + 120*df(x1,t,2)**3*df(x1,t)*x1**6*x2**7*a1**10*ka*vm*(31*a1 + 240*
a2 + 22*b1 - 66*b2) + 30*df(x1,t,2)**3*df(x1,t)*x1**5*x2**8*a1**10*ka*vm*( - 52*a1 - 360*a2 - 33*b1 + 99*b2) + 20*df(x1,
t,2)**3*df(x1,t)*x1**4*x2**9*a1**10*ka*vm*(21*a1 + 120*a2 + 11*b1 - 33*b2) + 2*df(x1,t,2)**3*df(x1,t)*x1**3*x2**10*a1**
10*ka*vm*( - 32*a1 - 120*a2 - 11*b1 + 33*b2) + 4*df(x1,t,2)**3*df(x1,t)*x1**2*x2**11*a1**11*ka*vm + df(x1,t,2)**3*x1**14
*a1**11*ka*vm*( - 3*a1 - 24*a2 - 2*b1 + 6*b2) + 2*df(x1,t,2)**3*x1**13*x2*a1**11*ka*vm*(16*a1 + 132*a2 + 11*b1 - 33*b2) 
+ 22*df(x1,t,2)**3*x1**12*x2**2*a1**11*ka*vm*( - 7*a1 - 60*a2 - 5*b1 + 15*b2) + 110*df(x1,t,2)**3*x1**11*x2**3*a1**11*ka
*vm*(4*a1 + 36*a2 + 3*b1 - 9*b2) + 165*df(x1,t,2)**3*x1**10*x2**4*a1**11*ka*vm*( - 5*a1 - 48*a2 - 4*b1 + 12*b2) + 132*df
(x1,t,2)**3*x1**9*x2**5*a1**11*ka*vm*(8*a1 + 84*a2 + 7*b1 - 21*b2) + 924*df(x1,t,2)**3*x1**8*x2**6*a1**11*ka*vm*( - a1 -
 12*a2 - b1 + 3*b2) + 132*df(x1,t,2)**3*x1**7*x2**7*a1**11*ka*vm*(4*a1 + 60*a2 + 5*b1 - 15*b2) + 165*df(x1,t,2)**3*x1**6
*x2**8*a1**11*ka*vm*( - a1 - 24*a2 - 2*b1 + 6*b2) + 110*df(x1,t,2)**3*x1**5*x2**9*a1**11*ka*vm*(12*a2 + b1 - 3*b2) + 22*
df(x1,t,2)**3*x1**4*x2**10*a1**11*ka*vm*(a1 - 12*a2 - b1 + 3*b2) + 2*df(x1,t,2)**3*x1**3*x2**11*a1**11*ka*vm*( - 4*a1 + 
12*a2 + b1 - 3*b2) + df(x1,t,2)**3*x1**2*x2**12*a1**12*ka*vm + 3*df(x1,t,2)**2*df(x1,t)**15*x1*( - ka + kc) + df(x1,t,2)
**2*df(x1,t)**14*x1**2*( - 42*a1*ka + 43*a1*kc - b1*ka) + 43*df(x1,t,2)**2*df(x1,t)**14*x1*x2*a1*(ka - kc) + 10*df(x1,t,
2)**2*df(x1,t)**14*x1*ka*vm + 7*df(x1,t,2)**2*df(x1,t)**13*x1**3*a1*( - 39*a1*ka + 41*a1*kc - 2*b1*ka) + 14*df(x1,t,2)**
2*df(x1,t)**13*x1**2*x2*a1*(40*a1*ka - 41*a1*kc + b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**13*x1**2*ka*vm*(40*a1 + 3*b1) + 287
*df(x1,t,2)**2*df(x1,t)**13*x1*x2**2*a1**2*( - ka + kc) - 115*df(x1,t,2)**2*df(x1,t)**13*x1*x2*a1*ka*vm + 91*df(x1,t,2)
**2*df(x1,t)**12*x1**4*a1**2*( - 12*a1*ka + 13*a1*kc - b1*ka) + 91*df(x1,t,2)**2*df(x1,t)**12*x1**3*x2*a1**2*(37*a1*ka -
 39*a1*kc + 2*b1*ka) + df(x1,t,2)**2*df(x1,t)**12*x1**3*ka*vm*(256*a1**2 + 49*a1*a2 + 66*a1*b1 + 15*a1*b2 - 3*b1*b2 - 3*
b2**2) + 91*df(x1,t,2)**2*df(x1,t)**12*x1**2*x2**2*a1**2*( - 38*a1*ka + 39*a1*kc - b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**12
*x1**2*x2*a1*ka*vm*( - 414*a1 - 23*a2 - 36*b1 - 2*b2) + 1183*df(x1,t,2)**2*df(x1,t)**12*x1*x2**3*a1**3*(ka - kc) + 599*
df(x1,t,2)**2*df(x1,t)**12*x1*x2**2*a1**2*ka*vm + 91*df(x1,t,2)**2*df(x1,t)**11*x1**5*a1**3*( - 33*a1*ka + 37*a1*kc - 4*
b1*ka) + 364*df(x1,t,2)**2*df(x1,t)**11*x1**4*x2*a1**3*(34*a1*ka - 37*a1*kc + 3*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**11*x1
**4*a1*ka*vm*(180*a1**2 + 236*a1*a2 + 165*a1*b1 + 81*a1*b2 - 2*a2**2 + 3*a2*b1 - 9*a2*b2 - 18*b1*b2 - 18*b2**2) + 546*df
(x1,t,2)**2*df(x1,t)**11*x1**3*x2**2*a1**3*( - 35*a1*ka + 37*a1*kc - 2*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**11*x1**3*x2*a1
*ka*vm*( - 1159*a1**2 - 488*a1*a2 - 363*a1*b1 - 105*a1*b2 + 2*a2**2 - 3*a2*b1 + 9*a2*b2 + 18*b1*b2 + 18*b2**2) + 364*df(
x1,t,2)**2*df(x1,t)**11*x1**2*x2**3*a1**3*(36*a1*ka - 37*a1*kc + b1*ka) + 12*df(x1,t,2)**2*df(x1,t)**11*x1**2*x2**2*a1**
2*ka*vm*(318*a1 + 42*a2 + 33*b1 + 4*b2) + 3367*df(x1,t,2)**2*df(x1,t)**11*x1*x2**4*a1**4*( - ka + kc) - 1858*df(x1,t,2)
**2*df(x1,t)**11*x1*x2**3*a1**3*ka*vm + 1001*df(x1,t,2)**2*df(x1,t)**10*x1**6*a1**4*( - 6*a1*ka + 7*a1*kc - b1*ka) + 
1001*df(x1,t,2)**2*df(x1,t)**10*x1**5*x2*a1**4*(31*a1*ka - 35*a1*kc + 4*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**10*x1**5*a1**
2*ka*vm*( - 15*a1**2 + 1015*a1*a2 + 495*a1*b1 + 396*a1*b2 - 4*a2**2 + 33*a2*b1 - 99*a2*b2 - 99*b1*b2 - 99*b2**2) + 2002*
df(x1,t,2)**2*df(x1,t)**10*x1**4*x2**2*a1**4*( - 32*a1*ka + 35*a1*kc - 3*b1*ka) + 4*df(x1,t,2)**2*df(x1,t)**10*x1**4*x2*
a1**2*ka*vm*( - 645*a1**2 - 1642*a1*a2 - 825*a1*b1 - 462*a1*b2 + 4*a2**2 - 33*a2*b1 + 99*a2*b2 + 99*b1*b2 + 99*b2**2) + 
2002*df(x1,t,2)**2*df(x1,t)**10*x1**3*x2**3*a1**4*(33*a1*ka - 35*a1*kc + 2*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**10*x1**3*
x2**2*a1**2*ka*vm*(4517*a1**2 + 3523*a1*a2 + 1815*a1*b1 + 660*a1*b2 - 4*a2**2 + 33*a2*b1 - 99*a2*b2 - 99*b1*b2 - 99*b2**
2) + 1001*df(x1,t,2)**2*df(x1,t)**10*x1**2*x2**4*a1**4*( - 34*a1*ka + 35*a1*kc - b1*ka) + 44*df(x1,t,2)**2*df(x1,t)**10*
x1**2*x2**3*a1**3*ka*vm*( - 232*a1 - 57*a2 - 30*b1 - 6*b2) + 7007*df(x1,t,2)**2*df(x1,t)**10*x1*x2**5*a1**5*(ka - kc) + 
3784*df(x1,t,2)**2*df(x1,t)**10*x1*x2**4*a1**4*ka*vm + 1001*df(x1,t,2)**2*df(x1,t)**9*x1**7*a1**5*( - 9*a1*ka + 11*a1*kc
 - 2*b1*ka) + 2002*df(x1,t,2)**2*df(x1,t)**9*x1**6*x2*a1**5*(28*a1*ka - 33*a1*kc + 5*b1*ka) + 10*df(x1,t,2)**2*df(x1,t)
**9*x1**6*a1**3*ka*vm*( - 96*a1**2 + 512*a1*a2 + 198*a1*b1 + 231*a1*b2 + 14*a2**2 + 33*a2*b1 - 99*a2*b2 - 66*b1*b2 - 66*
b2**2) + 5005*df(x1,t,2)**2*df(x1,t)**9*x1**5*x2**2*a1**5*( - 29*a1*ka + 33*a1*kc - 4*b1*ka) + 5*df(x1,t,2)**2*df(x1,t)
**9*x1**5*x2*a1**3*ka*vm*(279*a1**2 - 4568*a1*a2 - 1782*a1*b1 - 1562*a1*b2 - 84*a2**2 - 198*a2*b1 + 594*a2*b2 + 396*b1*
b2 + 396*b2**2) + 20020*df(x1,t,2)**2*df(x1,t)**9*x1**4*x2**3*a1**5*(10*a1*ka - 11*a1*kc + b1*ka) + 10*df(x1,t,2)**2*df(
x1,t)**9*x1**4*x2**2*a1**3*ka*vm*(680*a1**2 + 3780*a1*a2 + 1485*a1*b1 + 957*a1*b2 + 42*a2**2 + 99*a2*b1 - 297*a2*b2 - 
198*b1*b2 - 198*b2**2) + 5005*df(x1,t,2)**2*df(x1,t)**9*x1**3*x2**4*a1**5*( - 31*a1*ka + 33*a1*kc - 2*b1*ka) + 10*df(x1,
t,2)**2*df(x1,t)**9*x1**3*x2**3*a1**3*ka*vm*( - 1917*a1**2 - 2756*a1*a2 - 1089*a1*b1 - 495*a1*b2 - 14*a2**2 - 33*a2*b1 +
 99*a2*b2 + 66*b1*b2 + 66*b2**2) + 2002*df(x1,t,2)**2*df(x1,t)**9*x1**2*x2**5*a1**5*(32*a1*ka - 33*a1*kc + b1*ka) + 110*
df(x1,t,2)**2*df(x1,t)**9*x1**2*x2**4*a1**4*ka*vm*(156*a1 + 68*a2 + 27*b1 + 8*b2) + 11011*df(x1,t,2)**2*df(x1,t)**9*x1*
x2**6*a1**6*( - ka + kc) - 5225*df(x1,t,2)**2*df(x1,t)**9*x1*x2**5*a1**5*ka*vm + 429*df(x1,t,2)**2*df(x1,t)**8*x1**8*a1
**6*( - 24*a1*ka + 31*a1*kc - 7*b1*ka) + 3003*df(x1,t,2)**2*df(x1,t)**8*x1**7*x2*a1**6*(25*a1*ka - 31*a1*kc + 6*b1*ka) +
 3*df(x1,t,2)**2*df(x1,t)**8*x1**7*a1**4*ka*vm*( - 560*a1**2 + 2785*a1*a2 + 924*a1*b1 + 1485*a1*b2 + 320*a2**2 + 330*a2*
b1 - 990*a2*b2 - 495*b1*b2 - 495*b2**2) + 9009*df(x1,t,2)**2*df(x1,t)**8*x1**6*x2**2*a1**6*( - 26*a1*ka + 31*a1*kc - 5*
b1*ka) + 30*df(x1,t,2)**2*df(x1,t)**8*x1**6*x2*a1**4*ka*vm*(268*a1**2 - 1609*a1*a2 - 528*a1*b1 - 660*a1*b2 - 128*a2**2 -
 132*a2*b1 + 396*a2*b2 + 198*b1*b2 + 198*b2**2) + 15015*df(x1,t,2)**2*df(x1,t)**8*x1**5*x2**3*a1**6*(27*a1*ka - 31*a1*kc
 + 4*b1*ka) + 45*df(x1,t,2)**2*df(x1,t)**8*x1**5*x2**2*a1**4*ka*vm*( - 235*a1**2 + 2434*a1*a2 + 792*a1*b1 + 770*a1*b2 + 
128*a2**2 + 132*a2*b1 - 396*a2*b2 - 198*b1*b2 - 198*b2**2) + 15015*df(x1,t,2)**2*df(x1,t)**8*x1**4*x2**4*a1**6*( - 28*a1
*ka + 31*a1*kc - 3*b1*ka) + 60*df(x1,t,2)**2*df(x1,t)**8*x1**4*x2**3*a1**4*ka*vm*( - 75*a1**2 - 2042*a1*a2 - 660*a1*b1 -
 495*a1*b2 - 64*a2**2 - 66*a2*b1 + 198*a2*b2 + 99*b1*b2 + 99*b2**2) + 9009*df(x1,t,2)**2*df(x1,t)**8*x1**3*x2**5*a1**6*(
29*a1*ka - 31*a1*kc + 2*b1*ka) + 15*df(x1,t,2)**2*df(x1,t)**8*x1**3*x2**4*a1**4*ka*vm*(1450*a1**2 + 4517*a1*a2 + 1452*a1
*b1 + 825*a1*b2 + 64*a2**2 + 66*a2*b1 - 198*a2*b2 - 99*b1*b2 - 99*b2**2) + 3003*df(x1,t,2)**2*df(x1,t)**8*x1**2*x2**6*a1
**6*( - 30*a1*ka + 31*a1*kc - b1*ka) + 198*df(x1,t,2)**2*df(x1,t)**8*x1**2*x2**5*a1**5*ka*vm*( - 90*a1 - 75*a2 - 24*b1 -
 10*b2) + 13299*df(x1,t,2)**2*df(x1,t)**8*x1*x2**7*a1**7*(ka - kc) + 4785*df(x1,t,2)**2*df(x1,t)**8*x1*x2**6*a1**6*ka*vm
 + 429*df(x1,t,2)**2*df(x1,t)**7*x1**9*a1**7*( - 21*a1*ka + 29*a1*kc - 8*b1*ka) + 3432*df(x1,t,2)**2*df(x1,t)**7*x1**8*
x2*a1**7*(22*a1*ka - 29*a1*kc + 7*b1*ka) + 12*df(x1,t,2)**2*df(x1,t)**7*x1**8*a1**5*ka*vm*( - 124*a1**2 + 764*a1*a2 + 
231*a1*b1 + 495*a1*b2 + 250*a2**2 + 165*a2*b1 - 495*a2*b2 - 198*b1*b2 - 198*b2**2) + 12012*df(x1,t,2)**2*df(x1,t)**7*x1
**7*x2**2*a1**7*( - 23*a1*ka + 29*a1*kc - 6*b1*ka) + 12*df(x1,t,2)**2*df(x1,t)**7*x1**7*x2*a1**5*ka*vm*(917*a1**2 - 5536
*a1*a2 - 1617*a1*b1 - 2739*a1*b2 - 1250*a2**2 - 825*a2*b1 + 2475*a2*b2 + 990*b1*b2 + 990*b2**2) + 24024*df(x1,t,2)**2*df
(x1,t)**7*x1**6*x2**3*a1**7*(24*a1*ka - 29*a1*kc + 5*b1*ka) + 24*df(x1,t,2)**2*df(x1,t)**7*x1**6*x2**2*a1**5*ka*vm*( - 
1258*a1**2 + 8110*a1*a2 + 2310*a1*b1 + 3135*a1*b2 + 1250*a2**2 + 825*a2*b1 - 2475*a2*b2 - 990*b1*b2 - 990*b2**2) + 30030
*df(x1,t,2)**2*df(x1,t)**7*x1**5*x2**4*a1**7*( - 25*a1*ka + 29*a1*kc - 4*b1*ka) + 60*df(x1,t,2)**2*df(x1,t)**7*x1**5*x2
**3*a1**5*ka*vm*(633*a1**2 - 4960*a1*a2 - 1386*a1*b1 - 1518*a1*b2 - 500*a2**2 - 330*a2*b1 + 990*a2*b2 + 396*b1*b2 + 396*
b2**2) + 24024*df(x1,t,2)**2*df(x1,t)**7*x1**4*x2**5*a1**7*(26*a1*ka - 29*a1*kc + 3*b1*ka) + 60*df(x1,t,2)**2*df(x1,t)**
7*x1**4*x2**4*a1**5*ka*vm*( - 300*a1**2 + 4196*a1*a2 + 1155*a1*b1 + 1023*a1*b2 + 250*a2**2 + 165*a2*b1 - 495*a2*b2 - 198
*b1*b2 - 198*b2**2) + 12012*df(x1,t,2)**2*df(x1,t)**7*x1**3*x2**6*a1**7*( - 27*a1*ka + 29*a1*kc - 2*b1*ka) + 12*df(x1,t,
2)**2*df(x1,t)**7*x1**3*x2**5*a1**5*ka*vm*( - 481*a1**2 - 9344*a1*a2 - 2541*a1*b1 - 1815*a1*b2 - 250*a2**2 - 165*a2*b1 +
 495*a2*b2 + 198*b1*b2 + 198*b2**2) + 3432*df(x1,t,2)**2*df(x1,t)**7*x1**2*x2**7*a1**7*(28*a1*ka - 29*a1*kc + b1*ka) + 
264*df(x1,t,2)**2*df(x1,t)**7*x1**2*x2**6*a1**6*ka*vm*(34*a1 + 78*a2 + 21*b1 + 12*b2) + 12441*df(x1,t,2)**2*df(x1,t)**7*
x1*x2**8*a1**8*( - ka + kc) - 2508*df(x1,t,2)**2*df(x1,t)**7*x1*x2**7*a1**7*ka*vm + 3003*df(x1,t,2)**2*df(x1,t)**6*x1**
10*a1**8*( - 2*a1*ka + 3*a1*kc - b1*ka) + 3003*df(x1,t,2)**2*df(x1,t)**6*x1**9*x2*a1**8*(19*a1*ka - 27*a1*kc + 8*b1*ka) 
+ 6*df(x1,t,2)**2*df(x1,t)**6*x1**9*a1**6*ka*vm*( - 115*a1**2 + 1134*a1*a2 + 330*a1*b1 + 924*a1*b2 + 952*a2**2 + 462*a2*
b1 - 1386*a2*b2 - 462*b1*b2 - 462*b2**2) + 12012*df(x1,t,2)**2*df(x1,t)**6*x1**8*x2**2*a1**8*( - 20*a1*ka + 27*a1*kc - 7
*b1*ka) + 24*df(x1,t,2)**2*df(x1,t)**6*x1**8*x2*a1**6*ka*vm*(321*a1**2 - 2548*a1*a2 - 693*a1*b1 - 1540*a1*b2 - 1428*a2**
2 - 693*a2*b1 + 2079*a2*b2 + 693*b1*b2 + 693*b2**2) + 84084*df(x1,t,2)**2*df(x1,t)**6*x1**7*x2**3*a1**8*(7*a1*ka - 9*a1*
kc + 2*b1*ka) + 84*df(x1,t,2)**2*df(x1,t)**6*x1**7*x2**2*a1**6*ka*vm*( - 377*a1**2 + 2667*a1*a2 + 693*a1*b1 + 1254*a1*b2
 + 1020*a2**2 + 495*a2*b1 - 1485*a2*b2 - 495*b1*b2 - 495*b2**2) + 42042*df(x1,t,2)**2*df(x1,t)**6*x1**6*x2**4*a1**8*( - 
22*a1*ka + 27*a1*kc - 5*b1*ka) + 168*df(x1,t,2)**2*df(x1,t)**6*x1**6*x2**3*a1**6*ka*vm*(398*a1**2 - 2625*a1*a2 - 660*a1*
b1 - 990*a1*b2 - 680*a2**2 - 330*a2*b1 + 990*a2*b2 + 330*b1*b2 + 330*b2**2) + 42042*df(x1,t,2)**2*df(x1,t)**6*x1**5*x2**
5*a1**8*(23*a1*ka - 27*a1*kc + 4*b1*ka) + 420*df(x1,t,2)**2*df(x1,t)**6*x1**5*x2**4*a1**6*ka*vm*( - 192*a1**2 + 1211*a1*
a2 + 297*a1*b1 + 374*a1*b2 + 204*a2**2 + 99*a2*b1 - 297*a2*b2 - 99*b1*b2 - 99*b2**2) + 84084*df(x1,t,2)**2*df(x1,t)**6*
x1**4*x2**6*a1**8*( - 8*a1*ka + 9*a1*kc - b1*ka) + 168*df(x1,t,2)**2*df(x1,t)**6*x1**4*x2**5*a1**6*ka*vm*(335*a1**2 - 
2058*a1*a2 - 495*a1*b1 - 528*a1*b2 - 204*a2**2 - 99*a2*b1 + 297*a2*b2 + 99*b1*b2 + 99*b2**2) + 12012*df(x1,t,2)**2*df(x1
,t)**6*x1**3*x2**7*a1**8*(25*a1*ka - 27*a1*kc + 2*b1*ka) + 84*df(x1,t,2)**2*df(x1,t)**6*x1**3*x2**6*a1**6*ka*vm*( - 251*
a1**2 + 1533*a1*a2 + 363*a1*b1 + 330*a1*b2 + 68*a2**2 + 33*a2*b1 - 99*a2*b2 - 33*b1*b2 - 33*b2**2) + 3003*df(x1,t,2)**2*
df(x1,t)**6*x1**2*x2**8*a1**8*( - 26*a1*ka + 27*a1*kc - b1*ka) + 264*df(x1,t,2)**2*df(x1,t)**6*x1**2*x2**7*a1**7*ka*vm*(
12*a1 - 77*a2 - 18*b1 - 14*b2) + 9009*df(x1,t,2)**2*df(x1,t)**6*x1*x2**9*a1**9*(ka - kc) + 66*df(x1,t,2)**2*df(x1,t)**6*
x1*x2**8*a1**8*ka*vm + 1001*df(x1,t,2)**2*df(x1,t)**5*x1**11*a1**9*( - 3*a1*ka + 5*a1*kc - 2*b1*ka) + 2002*df(x1,t,2)**2
*df(x1,t)**5*x1**10*x2*a1**9*(16*a1*ka - 25*a1*kc + 9*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**5*x1**10*a1**7*ka*vm*( - 40*a1
**2 + 1680*a1*a2 + 495*a1*b1 + 1782*a1*b2 + 3612*a2**2 + 1386*a2*b1 - 4158*a2*b2 - 1188*b1*b2 - 1188*b2**2) + 9009*df(x1
,t,2)**2*df(x1,t)**5*x1**9*x2**2*a1**9*( - 17*a1*ka + 25*a1*kc - 8*b1*ka) + 3*df(x1,t,2)**2*df(x1,t)**5*x1**9*x2*a1**7*
ka*vm*(865*a1**2 - 12592*a1*a2 - 3300*a1*b1 - 9372*a1*b2 - 16856*a2**2 - 6468*a2*b1 + 19404*a2*b2 + 5544*b1*b2 + 5544*b2
**2) + 24024*df(x1,t,2)**2*df(x1,t)**5*x1**8*x2**3*a1**9*(18*a1*ka - 25*a1*kc + 7*b1*ka) + 36*df(x1,t,2)**2*df(x1,t)**5*
x1**8*x2**2*a1**7*ka*vm*( - 472*a1**2 + 4732*a1*a2 + 1155*a1*b1 + 2695*a1*b2 + 4214*a2**2 + 1617*a2*b1 - 4851*a2*b2 - 
1386*b1*b2 - 1386*b2**2) + 42042*df(x1,t,2)**2*df(x1,t)**5*x1**7*x2**4*a1**9*( - 19*a1*ka + 25*a1*kc - 6*b1*ka) + 84*df(
x1,t,2)**2*df(x1,t)**5*x1**7*x2**3*a1**7*ka*vm*(631*a1**2 - 4964*a1*a2 - 1155*a1*b1 - 2277*a1*b2 - 3010*a2**2 - 1155*a2*
b1 + 3465*a2*b2 + 990*b1*b2 + 990*b2**2) + 252252*df(x1,t,2)**2*df(x1,t)**5*x1**6*x2**5*a1**9*(4*a1*ka - 5*a1*kc + b1*ka
) + 84*df(x1,t,2)**2*df(x1,t)**5*x1**6*x2**4*a1**7*ka*vm*( - 1148*a1**2 + 7340*a1*a2 + 1650*a1*b1 + 2805*a1*b2 + 3010*a2
**2 + 1155*a2*b1 - 3465*a2*b2 - 990*b1*b2 - 990*b2**2) + 42042*df(x1,t,2)**2*df(x1,t)**5*x1**5*x2**6*a1**9*( - 21*a1*ka 
+ 25*a1*kc - 4*b1*ka) + 126*df(x1,t,2)**2*df(x1,t)**5*x1**5*x2**5*a1**7*ka*vm*(875*a1**2 - 4520*a1*a2 - 990*a1*b1 - 1474
*a1*b2 - 1204*a2**2 - 462*a2*b1 + 1386*a2*b2 + 396*b1*b2 + 396*b2**2) + 24024*df(x1,t,2)**2*df(x1,t)**5*x1**4*x2**7*a1**
9*(22*a1*ka - 25*a1*kc + 3*b1*ka) + 84*df(x1,t,2)**2*df(x1,t)**5*x1**4*x2**6*a1**7*ka*vm*( - 960*a1**2 + 3844*a1*a2 + 
825*a1*b1 + 1089*a1*b2 + 602*a2**2 + 231*a2*b1 - 693*a2*b2 - 198*b1*b2 - 198*b2**2) + 9009*df(x1,t,2)**2*df(x1,t)**5*x1
**3*x2**8*a1**9*( - 23*a1*ka + 25*a1*kc - 2*b1*ka) + 12*df(x1,t,2)**2*df(x1,t)**5*x1**3*x2**7*a1**7*ka*vm*(3061*a1**2 - 
8596*a1*a2 - 1815*a1*b1 - 2145*a1*b2 - 602*a2**2 - 231*a2*b1 + 693*a2*b2 + 198*b1*b2 + 198*b2**2) + 2002*df(x1,t,2)**2*
df(x1,t)**5*x1**2*x2**9*a1**9*(24*a1*ka - 25*a1*kc + b1*ka) + 198*df(x1,t,2)**2*df(x1,t)**5*x1**2*x2**8*a1**8*ka*vm*( - 
48*a1 + 72*a2 + 15*b1 + 16*b2) + 5005*df(x1,t,2)**2*df(x1,t)**5*x1*x2**10*a1**10*( - ka + kc) + 1067*df(x1,t,2)**2*df(x1
,t)**5*x1*x2**9*a1**9*ka*vm + 91*df(x1,t,2)**2*df(x1,t)**4*x1**12*a1**10*( - 12*a1*ka + 23*a1*kc - 11*b1*ka) + 1001*df(
x1,t,2)**2*df(x1,t)**4*x1**11*x2*a1**10*(13*a1*ka - 23*a1*kc + 10*b1*ka) + 5*df(x1,t,2)**2*df(x1,t)**4*x1**11*a1**8*ka*
vm*(16*a1**2 + 219*a1*a2 + 66*a1*b1 + 297*a1*b2 + 1248*a2**2 + 396*a2*b1 - 1188*a2*b2 - 297*b1*b2 - 297*b2**2) + 5005*df
(x1,t,2)**2*df(x1,t)**4*x1**10*x2**2*a1**10*( - 14*a1*ka + 23*a1*kc - 9*b1*ka) + 10*df(x1,t,2)**2*df(x1,t)**4*x1**10*x2*
a1**8*ka*vm*(2*a1**2 - 1569*a1*a2 - 396*a1*b1 - 1386*a1*b2 - 4992*a2**2 - 1584*a2*b1 + 4752*a2*b2 + 1188*b1*b2 + 1188*b2
**2) + 15015*df(x1,t,2)**2*df(x1,t)**4*x1**9*x2**3*a1**10*(15*a1*ka - 23*a1*kc + 8*b1*ka) + 15*df(x1,t,2)**2*df(x1,t)**4
*x1**9*x2**2*a1**8*ka*vm*( - 265*a1**2 + 5740*a1*a2 + 1320*a1*b1 + 3828*a1*b2 + 11648*a2**2 + 3696*a2*b1 - 11088*a2*b2 -
 2772*b1*b2 - 2772*b2**2) + 30030*df(x1,t,2)**2*df(x1,t)**4*x1**8*x2**4*a1**10*( - 16*a1*ka + 23*a1*kc - 7*b1*ka) + 120*
df(x1,t,2)**2*df(x1,t)**4*x1**8*x2**3*a1**8*ka*vm*(179*a1**2 - 2128*a1*a2 - 462*a1*b1 - 1155*a1*b2 - 2912*a2**2 - 924*a2
*b1 + 2772*a2*b2 + 693*b1*b2 + 693*b2**2) + 42042*df(x1,t,2)**2*df(x1,t)**4*x1**7*x2**5*a1**10*(17*a1*ka - 23*a1*kc + 6*
b1*ka) + 210*df(x1,t,2)**2*df(x1,t)**4*x1**7*x2**4*a1**8*ka*vm*( - 274*a1**2 + 2213*a1*a2 + 462*a1*b1 + 1023*a1*b2 + 
2080*a2**2 + 660*a2*b1 - 1980*a2*b2 - 495*b1*b2 - 495*b2**2) + 42042*df(x1,t,2)**2*df(x1,t)**4*x1**6*x2**6*a1**10*( - 18
*a1*ka + 23*a1*kc - 5*b1*ka) + 420*df(x1,t,2)**2*df(x1,t)**4*x1**6*x2**5*a1**8*ka*vm*(224*a1**2 - 1301*a1*a2 - 264*a1*b1
 - 528*a1*b2 - 832*a2**2 - 264*a2*b1 + 792*a2*b2 + 198*b1*b2 + 198*b2**2) + 30030*df(x1,t,2)**2*df(x1,t)**4*x1**5*x2**7*
a1**10*(19*a1*ka - 23*a1*kc + 4*b1*ka) + 210*df(x1,t,2)**2*df(x1,t)**4*x1**5*x2**6*a1**8*ka*vm*( - 477*a1**2 + 1994*a1*
a2 + 396*a1*b1 + 726*a1*b2 + 832*a2**2 + 264*a2*b1 - 792*a2*b2 - 198*b1*b2 - 198*b2**2) + 15015*df(x1,t,2)**2*df(x1,t)**
4*x1**4*x2**8*a1**10*( - 20*a1*ka + 23*a1*kc - 3*b1*ka) + 120*df(x1,t,2)**2*df(x1,t)**4*x1**4*x2**7*a1**8*ka*vm*(585*a1
**2 - 1690*a1*a2 - 330*a1*b1 - 561*a1*b2 - 416*a2**2 - 132*a2*b1 + 396*a2*b2 + 99*b1*b2 + 99*b2**2) + 5005*df(x1,t,2)**2
*df(x1,t)**4*x1**3*x2**9*a1**10*(21*a1*ka - 23*a1*kc + 2*b1*ka) + 15*df(x1,t,2)**2*df(x1,t)**4*x1**3*x2**8*a1**8*ka*vm*(
 - 2092*a1**2 + 3769*a1*a2 + 726*a1*b1 + 1155*a1*b2 + 416*a2**2 + 132*a2*b1 - 396*a2*b2 - 99*b1*b2 - 99*b2**2) + 1001*df
(x1,t,2)**2*df(x1,t)**4*x1**2*x2**10*a1**10*( - 22*a1*ka + 23*a1*kc - b1*ka) + 110*df(x1,t,2)**2*df(x1,t)**4*x1**2*x2**9
*a1**9*ka*vm*(74*a1 - 63*a2 - 12*b1 - 18*b2) + 2093*df(x1,t,2)**2*df(x1,t)**4*x1*x2**11*a1**11*(ka - kc) - 935*df(x1,t,2
)**2*df(x1,t)**4*x1*x2**10*a1**10*ka*vm + 91*df(x1,t,2)**2*df(x1,t)**3*x1**13*a1**11*( - 3*a1*ka + 7*a1*kc - 4*b1*ka) + 
364*df(x1,t,2)**2*df(x1,t)**3*x1**12*x2*a1**11*(10*a1*ka - 21*a1*kc + 11*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**3*x1**12*a1
**9*ka*vm*(20*a1**2 + 140*a1*a2 + 33*a1*b1 + 165*a1*b2 + 1830*a2**2 + 495*a2*b1 - 1485*a2*b2 - 330*b1*b2 - 330*b2**2) + 
2002*df(x1,t,2)**2*df(x1,t)**3*x1**11*x2**2*a1**11*( - 11*a1*ka + 21*a1*kc - 10*b1*ka) + 10*df(x1,t,2)**2*df(x1,t)**3*x1
**11*x2*a1**9*ka*vm*( - 27*a1**2 - 472*a1*a2 - 99*a1*b1 - 385*a1*b2 - 3294*a2**2 - 891*a2*b1 + 2673*a2*b2 + 594*b1*b2 + 
594*b2**2) + 20020*df(x1,t,2)**2*df(x1,t)**3*x1**10*x2**3*a1**11*(4*a1*ka - 7*a1*kc + 3*b1*ka) + 20*df(x1,t,2)**2*df(x1,
t)**3*x1**10*x2**2*a1**9*ka*vm*(10*a1**2 + 1494*a1*a2 + 297*a1*b1 + 990*a1*b2 + 6588*a2**2 + 1782*a2*b1 - 5346*a2*b2 - 
1188*b1*b2 - 1188*b2**2) + 15015*df(x1,t,2)**2*df(x1,t)**3*x1**9*x2**4*a1**11*( - 13*a1*ka + 21*a1*kc - 8*b1*ka) + 30*df
(x1,t,2)**2*df(x1,t)**3*x1**9*x2**3*a1**9*ka*vm*(125*a1**2 - 3424*a1*a2 - 660*a1*b1 - 1980*a1*b2 - 10248*a2**2 - 2772*a2
*b1 + 8316*a2*b2 + 1848*b1*b2 + 1848*b2**2) + 168168*df(x1,t,2)**2*df(x1,t)**3*x1**8*x2**5*a1**11*(2*a1*ka - 3*a1*kc + 
b1*ka) + 60*df(x1,t,2)**2*df(x1,t)**3*x1**8*x2**4*a1**9*ka*vm*( - 300*a1**2 + 3668*a1*a2 + 693*a1*b1 + 1925*a1*b2 + 7686
*a2**2 + 2079*a2*b1 - 6237*a2*b2 - 1386*b1*b2 - 1386*b2**2) + 84084*df(x1,t,2)**2*df(x1,t)**3*x1**7*x2**6*a1**11*( - 5*
a1*ka + 7*a1*kc - 2*b1*ka) + 84*df(x1,t,2)**2*df(x1,t)**3*x1**7*x2**5*a1**9*ka*vm*(505*a1**2 - 3720*a1*a2 - 693*a1*b1 - 
1815*a1*b2 - 5490*a2**2 - 1485*a2*b1 + 4455*a2*b2 + 990*b1*b2 + 990*b2**2) + 24024*df(x1,t,2)**2*df(x1,t)**3*x1**6*x2**7
*a1**11*(16*a1*ka - 21*a1*kc + 5*b1*ka) + 840*df(x1,t,2)**2*df(x1,t)**3*x1**6*x2**6*a1**9*ka*vm*( - 74*a1**2 + 358*a1*a2
 + 66*a1*b1 + 165*a1*b2 + 366*a2**2 + 99*a2*b1 - 297*a2*b2 - 66*b1*b2 - 66*b2**2) + 15015*df(x1,t,2)**2*df(x1,t)**3*x1**
5*x2**8*a1**11*( - 17*a1*ka + 21*a1*kc - 4*b1*ka) + 60*df(x1,t,2)**2*df(x1,t)**3*x1**5*x2**7*a1**9*ka*vm*(1005*a1**2 - 
3248*a1*a2 - 594*a1*b1 - 1430*a1*b2 - 2196*a2**2 - 594*a2*b1 + 1782*a2*b2 + 396*b1*b2 + 396*b2**2) + 20020*df(x1,t,2)**2
*df(x1,t)**3*x1**4*x2**9*a1**11*(6*a1*ka - 7*a1*kc + b1*ka) + 30*df(x1,t,2)**2*df(x1,t)**3*x1**4*x2**8*a1**9*ka*vm*( - 
1300*a1**2 + 2724*a1*a2 + 495*a1*b1 + 1155*a1*b2 + 1098*a2**2 + 297*a2*b1 - 891*a2*b2 - 198*b1*b2 - 198*b2**2) + 2002*df
(x1,t,2)**2*df(x1,t)**3*x1**3*x2**10*a1**11*( - 19*a1*ka + 21*a1*kc - 2*b1*ka) + 10*df(x1,t,2)**2*df(x1,t)**3*x1**3*x2**
9*a1**9*ka*vm*(1625*a1**2 - 2008*a1*a2 - 363*a1*b1 - 825*a1*b2 - 366*a2**2 - 99*a2*b1 + 297*a2*b2 + 66*b1*b2 + 66*b2**2)
 + 364*df(x1,t,2)**2*df(x1,t)**3*x1**2*x2**11*a1**11*(20*a1*ka - 21*a1*kc + b1*ka) + 44*df(x1,t,2)**2*df(x1,t)**3*x1**2*
x2**10*a1**10*ka*vm*( - 90*a1 + 50*a2 + 9*b1 + 20*b2) + 637*df(x1,t,2)**2*df(x1,t)**3*x1*x2**12*a1**12*( - ka + kc) + 
430*df(x1,t,2)**2*df(x1,t)**3*x1*x2**11*a1**11*ka*vm + 7*df(x1,t,2)**2*df(x1,t)**2*x1**14*a1**12*( - 6*a1*ka + 19*a1*kc 
- 13*b1*ka) + 91*df(x1,t,2)**2*df(x1,t)**2*x1**13*x2*a1**12*(7*a1*ka - 19*a1*kc + 12*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**
2*x1**13*a1**10*ka*vm*(3*a1**2 + 47*a1*a2 + 3*a1*b1 + 700*a2**2 + 165*a2*b1 - 495*a2*b2 - 99*b1*b2 - 99*b2**2) + 546*df(
x1,t,2)**2*df(x1,t)**2*x1**12*x2**2*a1**12*( - 8*a1*ka + 19*a1*kc - 11*b1*ka) + 4*df(x1,t,2)**2*df(x1,t)**2*x1**12*x2*a1
**10*ka*vm*( - 17*a1**2 - 334*a1*a2 - 33*a1*b1 - 66*a1*b2 - 3500*a2**2 - 825*a2*b1 + 2475*a2*b2 + 495*b1*b2 + 495*b2**2)
 + 2002*df(x1,t,2)**2*df(x1,t)**2*x1**11*x2**3*a1**12*(9*a1*ka - 19*a1*kc + 10*b1*ka) + 6*df(x1,t,2)**2*df(x1,t)**2*x1**
11*x2**2*a1**10*ka*vm*(39*a1**2 + 1365*a1*a2 + 165*a1*b1 + 440*a1*b2 + 10500*a2**2 + 2475*a2*b1 - 7425*a2*b2 - 1485*b1*
b2 - 1485*b2**2) + 5005*df(x1,t,2)**2*df(x1,t)**2*x1**10*x2**4*a1**12*( - 10*a1*ka + 19*a1*kc - 9*b1*ka) + 20*df(x1,t,2)
**2*df(x1,t)**2*x1**10*x2**3*a1**10*ka*vm*(4*a1**2 - 1455*a1*a2 - 198*a1*b1 - 594*a1*b2 - 8400*a2**2 - 1980*a2*b1 + 5940
*a2*b2 + 1188*b1*b2 + 1188*b2**2) + 9009*df(x1,t,2)**2*df(x1,t)**2*x1**9*x2**5*a1**12*(11*a1*ka - 19*a1*kc + 8*b1*ka) + 
60*df(x1,t,2)**2*df(x1,t)**2*x1**9*x2**4*a1**10*ka*vm*( - 50*a1**2 + 1121*a1*a2 + 165*a1*b1 + 528*a1*b2 + 4900*a2**2 + 
1155*a2*b1 - 3465*a2*b2 - 693*b1*b2 - 693*b2**2) + 12012*df(x1,t,2)**2*df(x1,t)**2*x1**8*x2**6*a1**12*( - 12*a1*ka + 19*
a1*kc - 7*b1*ka) + 72*df(x1,t,2)**2*df(x1,t)**2*x1**8*x2**5*a1**10*ka*vm*(149*a1**2 - 1484*a1*a2 - 231*a1*b1 - 770*a1*b2
 - 4900*a2**2 - 1155*a2*b1 + 3465*a2*b2 + 693*b1*b2 + 693*b2**2) + 12012*df(x1,t,2)**2*df(x1,t)**2*x1**7*x2**7*a1**12*(
13*a1*ka - 19*a1*kc + 6*b1*ka) + 84*df(x1,t,2)**2*df(x1,t)**2*x1**7*x2**6*a1**10*ka*vm*( - 251*a1**2 + 1423*a1*a2 + 231*
a1*b1 + 792*a1*b2 + 3500*a2**2 + 825*a2*b1 - 2475*a2*b2 - 495*b1*b2 - 495*b2**2) + 9009*df(x1,t,2)**2*df(x1,t)**2*x1**6*
x2**8*a1**12*( - 14*a1*ka + 19*a1*kc - 5*b1*ka) + 24*df(x1,t,2)**2*df(x1,t)**2*x1**6*x2**7*a1**10*ka*vm*(1118*a1**2 - 
3935*a1*a2 - 660*a1*b1 - 2310*a1*b2 - 7000*a2**2 - 1650*a2*b1 + 4950*a2*b2 + 990*b1*b2 + 990*b2**2) + 5005*df(x1,t,2)**2
*df(x1,t)**2*x1**5*x2**9*a1**12*(15*a1*ka - 19*a1*kc + 4*b1*ka) + 90*df(x1,t,2)**2*df(x1,t)**2*x1**5*x2**8*a1**10*ka*vm*
( - 257*a1**2 + 575*a1*a2 + 99*a1*b1 + 352*a1*b2 + 700*a2**2 + 165*a2*b1 - 495*a2*b2 - 99*b1*b2 - 99*b2**2) + 2002*df(x1
,t,2)**2*df(x1,t)**2*x1**4*x2**10*a1**12*( - 16*a1*ka + 19*a1*kc - 3*b1*ka) + 20*df(x1,t,2)**2*df(x1,t)**2*x1**4*x2**9*
a1**10*ka*vm*(675*a1**2 - 938*a1*a2 - 165*a1*b1 - 594*a1*b2 - 700*a2**2 - 165*a2*b1 + 495*a2*b2 + 99*b1*b2 + 99*b2**2) +
 546*df(x1,t,2)**2*df(x1,t)**2*x1**3*x2**11*a1**12*(17*a1*ka - 19*a1*kc + 2*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)**2*x1**3*
x2**10*a1**10*ka*vm*( - 2567*a1**2 + 2027*a1*a2 + 363*a1*b1 + 1320*a1*b2 + 700*a2**2 + 165*a2*b1 - 495*a2*b2 - 99*b1*b2 
- 99*b2**2) + 91*df(x1,t,2)**2*df(x1,t)**2*x1**2*x2**12*a1**12*( - 18*a1*ka + 19*a1*kc - b1*ka) + 12*df(x1,t,2)**2*df(x1
,t)**2*x1**2*x2**11*a1**11*ka*vm*(96*a1 - 33*a2 - 6*b1 - 22*b2) + 133*df(x1,t,2)**2*df(x1,t)**2*x1*x2**13*a1**13*(ka - 
kc) - 116*df(x1,t,2)**2*df(x1,t)**2*x1*x2**12*a1**12*ka*vm + df(x1,t,2)**2*df(x1,t)*x1**15*a1**13*( - 3*a1*ka + 17*a1*kc
 - 14*b1*ka) + 14*df(x1,t,2)**2*df(x1,t)*x1**14*x2*a1**13*(4*a1*ka - 17*a1*kc + 13*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)*x1
**14*a1**11*ka*vm*(16*a1*a2 - 9*a1*b2 + 158*a2**2 + 33*a2*b1 - 99*a2*b2 - 18*b1*b2 - 18*b2**2) + 91*df(x1,t,2)**2*df(x1,
t)*x1**13*x2**2*a1**13*( - 5*a1*ka + 17*a1*kc - 12*b1*ka) + df(x1,t,2)**2*df(x1,t)*x1**13*x2*a1**11*ka*vm*( - 3*a1**2 - 
376*a1*a2 - 6*a1*b1 + 150*a1*b2 - 3476*a2**2 - 726*a2*b1 + 2178*a2*b2 + 396*b1*b2 + 396*b2**2) + 364*df(x1,t,2)**2*df(x1
,t)*x1**12*x2**3*a1**13*(6*a1*ka - 17*a1*kc + 11*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)*x1**12*x2**2*a1**11*ka*vm*(8*a1**2 + 
1012*a1*a2 + 33*a1*b1 - 231*a1*b2 + 8690*a2**2 + 1815*a2*b1 - 5445*a2*b2 - 990*b1*b2 - 990*b2**2) + 1001*df(x1,t,2)**2*
df(x1,t)*x1**11*x2**4*a1**13*( - 7*a1*ka + 17*a1*kc - 10*b1*ka) + 22*df(x1,t,2)**2*df(x1,t)*x1**11*x2**3*a1**11*ka*vm*(
a1**2 - 300*a1*a2 - 15*a1*b1 + 15*a1*b2 - 2370*a2**2 - 495*a2*b1 + 1485*a2*b2 + 270*b1*b2 + 270*b2**2) + 2002*df(x1,t,2)
**2*df(x1,t)*x1**10*x2**5*a1**13*(8*a1*ka - 17*a1*kc + 9*b1*ka) + 110*df(x1,t,2)**2*df(x1,t)*x1**10*x2**4*a1**11*ka*vm*(
 - 4*a1**2 + 132*a1*a2 + 9*a1*b1 + 18*a1*b2 + 948*a2**2 + 198*a2*b1 - 594*a2*b2 - 108*b1*b2 - 108*b2**2) + 3003*df(x1,t,
2)**2*df(x1,t)*x1**9*x2**6*a1**13*( - 9*a1*ka + 17*a1*kc - 8*b1*ka) + 33*df(x1,t,2)**2*df(x1,t)*x1**9*x2**5*a1**11*ka*vm
*(55*a1**2 - 688*a1*a2 - 60*a1*b1 - 228*a1*b2 - 4424*a2**2 - 924*a2*b1 + 2772*a2*b2 + 504*b1*b2 + 504*b2**2) + 3432*df(
x1,t,2)**2*df(x1,t)*x1**8*x2**7*a1**13*(10*a1*ka - 17*a1*kc + 7*b1*ka) + 132*df(x1,t,2)**2*df(x1,t)*x1**8*x2**6*a1**11*
ka*vm*( - 32*a1**2 + 196*a1*a2 + 21*a1*b1 + 105*a1*b2 + 1106*a2**2 + 231*a2*b1 - 693*a2*b2 - 126*b1*b2 - 126*b2**2) + 
3003*df(x1,t,2)**2*df(x1,t)*x1**7*x2**8*a1**13*( - 11*a1*ka + 17*a1*kc - 6*b1*ka) + 132*df(x1,t,2)**2*df(x1,t)*x1**7*x2
**7*a1**11*ka*vm*(49*a1**2 - 164*a1*a2 - 21*a1*b1 - 123*a1*b2 - 790*a2**2 - 165*a2*b1 + 495*a2*b2 + 90*b1*b2 + 90*b2**2)
 + 2002*df(x1,t,2)**2*df(x1,t)*x1**6*x2**9*a1**13*(12*a1*ka - 17*a1*kc + 5*b1*ka) + 66*df(x1,t,2)**2*df(x1,t)*x1**6*x2**
8*a1**11*ka*vm*( - 104*a1**2 + 200*a1*a2 + 30*a1*b1 + 195*a1*b2 + 790*a2**2 + 165*a2*b1 - 495*a2*b2 - 90*b1*b2 - 90*b2**
2) + 1001*df(x1,t,2)**2*df(x1,t)*x1**5*x2**10*a1**13*( - 13*a1*ka + 17*a1*kc - 4*b1*ka) + 55*df(x1,t,2)**2*df(x1,t)*x1**
5*x2**9*a1**11*ka*vm*(93*a1**2 - 104*a1*a2 - 18*a1*b1 - 126*a1*b2 - 316*a2**2 - 66*a2*b1 + 198*a2*b2 + 36*b1*b2 + 36*b2
**2) + 364*df(x1,t,2)**2*df(x1,t)*x1**4*x2**11*a1**13*(14*a1*ka - 17*a1*kc + 3*b1*ka) + 22*df(x1,t,2)**2*df(x1,t)*x1**4*
x2**10*a1**11*ka*vm*( - 120*a1**2 + 76*a1*a2 + 15*a1*b1 + 111*a1*b2 + 158*a2**2 + 33*a2*b1 - 99*a2*b2 - 18*b1*b2 - 18*b2
**2) + 91*df(x1,t,2)**2*df(x1,t)*x1**3*x2**12*a1**13*( - 15*a1*ka + 17*a1*kc - 2*b1*ka) + 2*df(x1,t,2)**2*df(x1,t)*x1**3
*x2**11*a1**11*ka*vm*(451*a1**2 - 148*a1*a2 - 33*a1*b1 - 255*a1*b2 - 158*a2**2 - 33*a2*b1 + 99*a2*b2 + 18*b1*b2 + 18*b2
**2) + 14*df(x1,t,2)**2*df(x1,t)*x1**2*x2**13*a1**13*(16*a1*ka - 17*a1*kc + b1*ka) + 2*df(x1,t,2)**2*df(x1,t)*x1**2*x2**
12*a1**12*ka*vm*( - 92*a1 + 12*a2 + 3*b1 + 24*b2) + 17*df(x1,t,2)**2*df(x1,t)*x1*x2**14*a1**14*( - ka + kc) + 17*df(x1,t
,2)**2*df(x1,t)*x1*x2**13*a1**13*ka*vm + df(x1,t,2)**2*x1**16*a1**14*(a1*kc - b1*ka) + df(x1,t,2)**2*x1**15*x2*a1**14*(
a1*ka - 15*a1*kc + 14*b1*ka) + df(x1,t,2)**2*x1**15*a1**12*ka*vm*(5*a1*a2 - 3*a1*b2 + 32*a2**2 + 6*a2*b1 - 18*a2*b2 - 3*
b1*b2 - 3*b2**2) + 7*df(x1,t,2)**2*x1**14*x2**2*a1**14*( - 2*a1*ka + 15*a1*kc - 13*b1*ka) + 2*df(x1,t,2)**2*x1**14*x2*a1
**12*ka*vm*( - 29*a1*a2 + 16*a1*b2 - 192*a2**2 - 36*a2*b1 + 108*a2*b2 + 18*b1*b2 + 18*b2**2) + 91*df(x1,t,2)**2*x1**13*
x2**3*a1**14*(a1*ka - 5*a1*kc + 4*b1*ka) + df(x1,t,2)**2*x1**13*x2**2*a1**12*ka*vm*( - a1**2 + 306*a1*a2 - 150*a1*b2 + 
2112*a2**2 + 396*a2*b1 - 1188*a2*b2 - 198*b1*b2 - 198*b2**2) + 91*df(x1,t,2)**2*x1**12*x2**4*a1**14*( - 4*a1*ka + 15*a1*
kc - 11*b1*ka) + 4*df(x1,t,2)**2*x1**12*x2**3*a1**12*ka*vm*(3*a1**2 - 242*a1*a2 + 99*a1*b2 - 1760*a2**2 - 330*a2*b1 + 
990*a2*b2 + 165*b1*b2 + 165*b2**2) + 1001*df(x1,t,2)**2*x1**11*x2**5*a1**14*(a1*ka - 3*a1*kc + 2*b1*ka) + 11*df(x1,t,2)
**2*x1**11*x2**4*a1**12*ka*vm*( - 6*a1**2 + 185*a1*a2 - 55*a1*b2 + 1440*a2**2 + 270*a2*b1 - 810*a2*b2 - 135*b1*b2 - 135*
b2**2) + 1001*df(x1,t,2)**2*x1**10*x2**6*a1**14*( - 2*a1*ka + 5*a1*kc - 3*b1*ka) + 22*df(x1,t,2)**2*x1**10*x2**5*a1**12*
ka*vm*(10*a1**2 - 135*a1*a2 + 18*a1*b2 - 1152*a2**2 - 216*a2*b1 + 648*a2*b2 + 108*b1*b2 + 108*b2**2) + 429*df(x1,t,2)**2
*x1**9*x2**7*a1**14*(7*a1*ka - 15*a1*kc + 8*b1*ka) + 33*df(x1,t,2)**2*x1**9*x2**6*a1**12*ka*vm*( - 15*a1**2 + 92*a1*a2 +
 12*a1*b2 + 896*a2**2 + 168*a2*b1 - 504*a2*b2 - 84*b1*b2 - 84*b2**2) + 429*df(x1,t,2)**2*x1**8*x2**8*a1**14*( - 8*a1*ka 
+ 15*a1*kc - 7*b1*ka) + 264*df(x1,t,2)**2*x1**8*x2**7*a1**12*ka*vm*(3*a1**2 - 8*a1*a2 - 5*a1*b2 - 96*a2**2 - 18*a2*b1 + 
54*a2*b2 + 9*b1*b2 + 9*b2**2) + 1001*df(x1,t,2)**2*x1**7*x2**9*a1**14*(3*a1*ka - 5*a1*kc + 2*b1*ka) + 33*df(x1,t,2)**2*
x1**7*x2**8*a1**12*ka*vm*( - 28*a1**2 + 27*a1*a2 + 51*a1*b2 + 480*a2**2 + 90*a2*b1 - 270*a2*b2 - 45*b1*b2 - 45*b2**2) + 
1001*df(x1,t,2)**2*x1**6*x2**10*a1**14*( - 2*a1*ka + 3*a1*kc - b1*ka) + 22*df(x1,t,2)**2*x1**6*x2**9*a1**12*ka*vm*(36*a1
**2 - 5*a1*a2 - 60*a1*b2 - 320*a2**2 - 60*a2*b1 + 180*a2*b2 + 30*b1*b2 + 30*b2**2) + 91*df(x1,t,2)**2*x1**5*x2**11*a1**
14*(11*a1*ka - 15*a1*kc + 4*b1*ka) + 11*df(x1,t,2)**2*x1**5*x2**10*a1**12*ka*vm*( - 45*a1**2 - 10*a1*a2 + 62*a1*b2 + 192
*a2**2 + 36*a2*b1 - 108*a2*b2 - 18*b1*b2 - 18*b2**2) + 91*df(x1,t,2)**2*x1**4*x2**12*a1**14*( - 4*a1*ka + 5*a1*kc - b1*
ka) + 4*df(x1,t,2)**2*x1**4*x2**11*a1**12*ka*vm*(55*a1**2 + 18*a1*a2 - 57*a1*b2 - 96*a2**2 - 18*a2*b1 + 54*a2*b2 + 9*b1*
b2 + 9*b2**2) + 7*df(x1,t,2)**2*x1**3*x2**13*a1**14*(13*a1*ka - 15*a1*kc + 2*b1*ka) + df(x1,t,2)**2*x1**3*x2**12*a1**12*
ka*vm*( - 66*a1**2 - 19*a1*a2 + 45*a1*b2 + 32*a2**2 + 6*a2*b1 - 18*a2*b2 - 3*b1*b2 - 3*b2**2) + df(x1,t,2)**2*x1**2*x2**
14*a1**14*( - 14*a1*ka + 15*a1*kc - b1*ka) + 2*df(x1,t,2)**2*x1**2*x2**13*a1**13*ka*vm*(6*a1 + a2 - 2*b2) + df(x1,t,2)**
2*x1*x2**15*a1**15*(ka - kc) - df(x1,t,2)**2*x1*x2**14*a1**14*ka*vm + 2*df(x1,t,2)*df(x1,t)**17*(ka - kc) + df(x1,t,2)*
df(x1,t)**16*x1*(28*a1*ka - 26*a1*kc - 2*b1*ka - 3*b2*ka + 3*b2*kc) + 30*df(x1,t,2)*df(x1,t)**16*x2*a1*( - ka + kc) - 2*
df(x1,t,2)*df(x1,t)**16*ka*vm + df(x1,t,2)*df(x1,t)**15*x1**2*a1*(182*a1*ka - 154*a1*kc + a2*ka - 5*a2*kc - 28*b1*ka - 
42*b2*ka + 46*b2*kc) + df(x1,t,2)*df(x1,t)**15*x1*x2*a1*( - 392*a1*ka + 364*a1*kc - 2*a2*ka + 5*a2*kc + 28*b1*ka + 43*b2
*ka - 46*b2*kc) + df(x1,t,2)*df(x1,t)**15*x1*vm*( - 4*a1*ka - 6*b1*ka - 5*b2*ka + 3*b2*kc) + 210*df(x1,t,2)*df(x1,t)**15
*x2**2*a1**2*(ka - kc) + 24*df(x1,t,2)*df(x1,t)**15*x2*a1*ka*vm + df(x1,t,2)*df(x1,t)**14*x1**3*a1*(728*a1**2*ka - 546*
a1**2*kc + 14*a1*a2*ka - 71*a1*a2*kc - 182*a1*b1*ka - 273*a1*b2*ka + 330*a1*b2*kc + a2**2*ka + a2*b1*ka - b1*b2*ka - b2
**2*ka) + df(x1,t,2)*df(x1,t)**14*x1**2*x2*a1*( - 2366*a1**2*ka + 2002*a1**2*kc - 42*a1*a2*ka + 142*a1*a2*kc + 364*a1*b1
*ka + 560*a1*b2*ka - 660*a1*b2*kc - a2**2*ka - a2*b1*ka + b1*b2*ka + b2**2*ka) + df(x1,t,2)*df(x1,t)**14*x1**2*vm*(64*a1
**2*ka - 35*a1*a2*ka - 66*a1*b1*ka - 66*a1*b2*ka + 42*a1*b2*kc + 3*b1*b2*ka + 3*b2**2*ka - b2**2*kc) + df(x1,t,2)*df(x1,
t)**14*x1*x2**2*a1**2*(2548*a1*ka - 2366*a1*kc + 28*a2*ka - 71*a2*kc - 182*b1*ka - 287*b2*ka + 330*b2*kc) + df(x1,t,2)*
df(x1,t)**14*x1*x2*a1*vm*(28*a1*ka + 25*a2*ka + 78*b1*ka + 66*b2*ka - 43*b2*kc) + 910*df(x1,t,2)*df(x1,t)**14*x2**3*a1**
3*( - ka + kc) - 130*df(x1,t,2)*df(x1,t)**14*x2**2*a1**2*ka*vm + 7*df(x1,t,2)*df(x1,t)**13*x1**4*a1**2*(286*a1**2*ka - 
182*a1**2*kc + 13*a1*a2*ka - 67*a1*a2*kc - 104*a1*b1*ka - 156*a1*b2*ka + 210*a1*b2*kc + 2*a2**2*ka + 2*a2*b1*ka - 2*b1*
b2*ka - 2*b2**2*ka) + 7*df(x1,t,2)*df(x1,t)**13*x1**3*x2*a1**2*( - 1248*a1**2*ka + 936*a1**2*kc - 52*a1*a2*ka + 201*a1*
a2*kc + 312*a1*b1*ka + 481*a1*b2*ka - 630*a1*b2*kc - 4*a2**2*ka - 4*a2*b1*ka + 4*b1*b2*ka + 4*b2**2*ka) + df(x1,t,2)*df(
x1,t)**13*x1**3*a1*vm*(420*a1**2*ka - 324*a1*a2*ka - 330*a1*b1*ka - 384*a1*b2*ka + 273*a1*b2*kc + 12*a2**2*ka - 12*a2*b1
*ka + 10*a2*b2*ka + 33*b1*b2*ka + 33*b2**2*ka - 14*b2**2*kc) + 7*df(x1,t,2)*df(x1,t)**13*x1**2*x2**2*a1**2*(2028*a1**2*
ka - 1716*a1**2*kc + 65*a1*a2*ka - 201*a1*a2*kc - 312*a1*b1*ka - 494*a1*b2*ka + 630*a1*b2*kc + 2*a2**2*ka + 2*a2*b1*ka -
 2*b1*b2*ka - 2*b2**2*ka) + df(x1,t,2)*df(x1,t)**13*x1**2*x2*a1*vm*( - 792*a1**2*ka + 630*a1*a2*ka + 792*a1*b1*ka + 798*
a1*b2*ka - 560*a1*b2*kc - 11*a2**2*ka + 12*a2*b1*ka - 4*a2*b2*ka - 38*b1*b2*ka - 38*b2**2*ka + 14*b2**2*kc) + 7*df(x1,t,
2)*df(x1,t)**13*x1*x2**3*a1**3*( - 1456*a1*ka + 1352*a1*kc - 26*a2*ka + 67*a2*kc + 104*b1*ka + 169*b2*ka - 210*b2*kc) + 
df(x1,t,2)*df(x1,t)**13*x1*x2**2*a1**2*vm*( - 24*a1*ka - 297*a2*ka - 468*b1*ka - 403*b2*ka + 287*b2*kc) + 2730*df(x1,t,2
)*df(x1,t)**13*x2**4*a1**4*(ka - kc) + 416*df(x1,t,2)*df(x1,t)**13*x2**3*a1**3*ka*vm + 91*df(x1,t,2)*df(x1,t)**12*x1**5*
a1**3*(44*a1**2*ka - 22*a1**2*kc + 4*a1*a2*ka - 21*a1*a2*kc - 22*a1*b1*ka - 33*a1*b2*ka + 50*a1*b2*kc + a2**2*ka + a2*b1
*ka - b1*b2*ka - b2**2*ka) + 91*df(x1,t,2)*df(x1,t)**12*x1**4*x2*a1**3*( - 242*a1**2*ka + 154*a1**2*kc - 20*a1*a2*ka + 
84*a1*a2*kc + 88*a1*b1*ka + 136*a1*b2*ka - 200*a1*b2*kc - 3*a2**2*ka - 3*a2*b1*ka + 3*b1*b2*ka + 3*b2**2*ka) + df(x1,t,2
)*df(x1,t)**12*x1**4*a1*vm*(1230*a1**3*ka - 1326*a1**2*a2*ka - 990*a1**2*b1*ka - 1298*a1**2*b2*ka + 1092*a1**2*b2*kc + 
82*a1*a2**2*ka - 132*a1*a2*b1*ka + 86*a1*a2*b2*ka + 162*a1*b1*b2*ka + 162*a1*b2**2*ka - 91*a1*b2**2*kc - a2**3*ka - 7*a2
**2*b2*ka + 6*a2*b1*b2*ka + 6*a2*b2**2*ka) + 273*df(x1,t,2)*df(x1,t)**12*x1**3*x2**2*a1**3*(176*a1**2*ka - 132*a1**2*kc 
+ 12*a1*a2*ka - 42*a1*a2*kc - 44*a1*b1*ka - 70*a1*b2*ka + 100*a1*b2*kc + a2**2*ka + a2*b1*ka - b1*b2*ka - b2**2*ka) + df
(x1,t,2)*df(x1,t)**12*x1**3*x2*a1*vm*( - 4420*a1**3*ka + 4302*a1**2*a2*ka + 3630*a1**2*b1*ka + 4218*a1**2*b2*ka - 3367*
a1**2*b2*kc - 169*a1*a2**2*ka + 276*a1*a2*b1*ka - 130*a1*a2*b2*ka - 383*a1*b1*b2*ka - 383*a1*b2**2*ka + 182*a1*b2**2*kc 
+ a2**3*ka + 7*a2**2*b2*ka - 6*a2*b1*b2*ka - 6*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)**12*x1**2*x2**3*a1**3*( - 572*a1**2
*ka + 484*a1**2*kc - 28*a1*a2*ka + 84*a1*a2*kc + 88*a1*b1*ka + 144*a1*b2*ka - 200*a1*b2*kc - a2**2*ka - a2*b1*ka + b1*b2
*ka + b2**2*ka) + df(x1,t,2)*df(x1,t)**12*x1**2*x2**2*a1**2*vm*(4488*a1**2*ka - 4590*a1*a2*ka - 4356*a1*b1*ka - 4428*a1*
b2*ka + 3458*a1*b2*kc + 87*a2**2*ka - 144*a2*b1*ka + 44*a2*b2*ka + 221*b1*b2*ka + 221*b2**2*ka - 91*b2**2*kc) + 91*df(x1
,t,2)*df(x1,t)**12*x1*x2**4*a1**4*(308*a1*ka - 286*a1*kc + 8*a2*ka - 21*a2*kc - 22*b1*ka - 37*b2*ka + 50*b2*kc) + df(x1,
t,2)*df(x1,t)**12*x1*x2**3*a1**3*vm*( - 440*a1*ka + 1614*a2*ka + 1716*b1*ka + 1508*b2*ka - 1183*b2*kc) + 6006*df(x1,t,2)
*df(x1,t)**12*x2**5*a1**5*( - ka + kc) - 858*df(x1,t,2)*df(x1,t)**12*x2**4*a1**4*ka*vm + 91*df(x1,t,2)*df(x1,t)**11*x1**
6*a1**4*(66*a1**2*ka - 22*a1**2*kc + 11*a1*a2*ka - 59*a1*a2*kc - 44*a1*b1*ka - 66*a1*b2*ka + 114*a1*b2*kc + 4*a2**2*ka +
 4*a2*b1*ka - 4*b1*b2*ka - 4*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)**11*x1**5*x2*a1**4*( - 440*a1**2*ka + 220*a1**2*kc - 66*
a1*a2*ka + 295*a1*a2*kc + 220*a1*b1*ka + 341*a1*b2*ka - 570*a1*b2*kc - 16*a2**2*ka - 16*a2*b1*ka + 16*b1*b2*ka + 16*b2**
2*ka) + df(x1,t,2)*df(x1,t)**11*x1**5*a1**2*vm*(2136*a1**3*ka - 3140*a1**2*a2*ka - 1980*a1**2*b1*ka - 2805*a1**2*b2*ka +
 3003*a1**2*b2*kc + 180*a1*a2**2*ka - 660*a1*a2*b1*ka + 288*a1*a2*b2*ka + 462*a1*b1*b2*ka + 462*a1*b2**2*ka - 364*a1*b2
**2*kc - 4*a2**3*ka - 6*a2**2*b1*ka - 66*a2**2*b2*ka + 72*a2*b1*b2*ka + 72*a2*b2**2*ka) + 182*df(x1,t,2)*df(x1,t)**11*x1
**4*x2**2*a1**4*(605*a1**2*ka - 385*a1**2*kc + 77*a1*a2*ka - 295*a1*a2*kc - 220*a1*b1*ka - 352*a1*b2*ka + 570*a1*b2*kc +
 12*a2**2*ka + 12*a2*b1*ka - 12*b1*b2*ka - 12*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**11*x1**4*x2*a1**2*vm*( - 5700*a1**3*ka 
+ 7298*a1**2*a2*ka + 4950*a1**2*b1*ka + 6402*a1**2*b2*ka - 6188*a1**2*b2*kc - 297*a1*a2**2*ka + 1056*a1*a2*b1*ka - 396*
a1*a2*b2*ka - 852*a1*b1*b2*ka - 852*a1*b2**2*ka + 546*a1*b2**2*kc + 4*a2**3*ka + 6*a2**2*b1*ka + 66*a2**2*b2*ka - 72*a2*
b1*b2*ka - 72*a2*b2**2*ka) + 182*df(x1,t,2)*df(x1,t)**11*x1**3*x2**3*a1**4*( - 880*a1**2*ka + 660*a1**2*kc - 88*a1*a2*ka
 + 295*a1*a2*kc + 220*a1*b1*ka + 363*a1*b2*ka - 570*a1*b2*kc - 8*a2**2*ka - 8*a2*b1*ka + 8*b1*b2*ka + 8*b2**2*ka) + 2*df
(x1,t,2)*df(x1,t)**11*x1**3*x2**2*a1**2*vm*(10550*a1**3*ka - 12537*a1**2*a2*ka - 9075*a1**2*b1*ka - 10527*a1**2*b2*ka + 
9555*a1**2*b2*kc + 324*a1*a2**2*ka - 1122*a1*a2*b1*ka + 360*a1*a2*b2*ka + 1011*a1*b1*b2*ka + 1011*a1*b2**2*ka - 546*a1*
b2**2*kc - 2*a2**3*ka - 3*a2**2*b1*ka - 33*a2**2*b2*ka + 36*a2*b1*b2*ka + 36*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)**11*
x1**2*x2**4*a1**4*(1430*a1**2*ka - 1210*a1**2*kc + 99*a1*a2*ka - 295*a1*a2*kc - 220*a1*b1*ka - 374*a1*b2*ka + 570*a1*b2*
kc + 4*a2**2*ka + 4*a2*b1*ka - 4*b1*b2*ka - 4*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**11*x1**2*x2**3*a1**3*vm*( - 7700*a1**2*
ka + 9460*a1*a2*ka + 7260*a1*b1*ka + 7458*a1*b2*ka - 6552*a1*b2*kc - 117*a2**2*ka + 396*a2*b1*ka - 108*a2*b2*ka - 390*b1
*b2*ka - 390*b2**2*ka + 182*b2**2*kc) + 91*df(x1,t,2)*df(x1,t)**11*x1*x2**5*a1**5*( - 616*a1*ka + 572*a1*kc - 22*a2*ka +
 59*a2*kc + 44*b1*ka + 77*b2*ka - 114*b2*kc) + df(x1,t,2)*df(x1,t)**11*x1*x2**4*a1**4*vm*(2420*a1*ka - 5302*a2*ka - 4290
*b1*ka - 3861*b2*ka + 3367*b2*kc) + 10010*df(x1,t,2)*df(x1,t)**11*x2**6*a1**6*(ka - kc) + 1144*df(x1,t,2)*df(x1,t)**11*
x2**5*a1**5*ka*vm + 143*df(x1,t,2)*df(x1,t)**10*x1**7*a1**5*(48*a1**2*ka - 6*a1**2*kc + 14*a1*a2*ka - 77*a1*a2*kc - 42*
a1*b1*ka - 63*a1*b2*ka + 126*a1*b2*kc + 7*a2**2*ka + 7*a2*b1*ka - 7*b1*b2*ka - 7*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)**
10*x1**6*x2*a1**5*( - 54*a1**2*ka + 18*a1**2*kc - 14*a1*a2*ka + 66*a1*a2*kc + 36*a1*b1*ka + 56*a1*b2*ka - 108*a1*b2*kc -
 5*a2**2*ka - 5*a2*b1*ka + 5*b1*b2*ka + 5*b2**2*ka) + df(x1,t,2)*df(x1,t)**10*x1**6*a1**3*vm*(2352*a1**3*ka - 4725*a1**2
*a2*ka - 2772*a1**2*b1*ka - 3960*a1**2*b2*ka + 6006*a1**2*b2*kc - 72*a1*a2**2*ka - 1980*a1*a2*b1*ka + 352*a1*a2*b2*ka + 
825*a1*b1*b2*ka + 825*a1*b2**2*ka - 1001*a1*b2**2*kc - 2*a2**3*ka - 66*a2**2*b1*ka - 264*a2**2*b2*ka + 396*a2*b1*b2*ka +
 396*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)**10*x1**5*x2**2*a1**5*(36*a1**2*ka - 18*a1**2*kc + 8*a1*a2*ka - 33*a1*a2*kc
 - 18*a1*b1*ka - 29*a1*b2*ka + 54*a1*b2*kc + 2*a2**2*ka + 2*a2*b1*ka - 2*b1*b2*ka - 2*b2**2*ka) + df(x1,t,2)*df(x1,t)**
10*x1**5*x2*a1**3*vm*( - 17352*a1**3*ka + 29355*a1**2*a2*ka + 17820*a1**2*b1*ka + 24420*a1**2*b2*ka - 31031*a1**2*b2*kc 
+ 238*a1*a2**2*ka + 8580*a1*a2*b1*ka - 1672*a1*a2*b2*ka - 4334*a1*b1*b2*ka - 4334*a1*b2**2*ka + 4004*a1*b2**2*kc + 6*a2
**3*ka + 198*a2**2*b1*ka + 792*a2**2*b2*ka - 1188*a2*b1*b2*ka - 1188*a2*b2**2*ka) + 10010*df(x1,t,2)*df(x1,t)**10*x1**4*
x2**3*a1**5*( - 33*a1**2*ka + 21*a1**2*kc - 6*a1*a2*ka + 22*a1*a2*kc + 12*a1*b1*ka + 20*a1*b2*ka - 36*a1*b2*kc - a2**2*
ka - a2*b1*ka + b1*b2*ka + b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**10*x1**4*x2**2*a1**3*vm*(23625*a1**3*ka - 35715*a1**2*a2*
ka - 22275*a1**2*b1*ka - 28325*a1**2*b2*ka + 32032*a1**2*b2*kc - 141*a1*a2**2*ka - 6930*a1*a2*b1*ka + 1452*a1*a2*b2*ka +
 4026*a1*b1*b2*ka + 4026*a1*b2**2*ka - 3003*a1*b2**2*kc - 3*a2**3*ka - 99*a2**2*b1*ka - 396*a2**2*b2*ka + 594*a2*b1*b2*
ka + 594*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)**10*x1**3*x2**4*a1**5*(72*a1**2*ka - 54*a1**2*kc + 10*a1*a2*ka - 33*a1*
a2*kc - 18*a1*b1*ka - 31*a1*b2*ka + 54*a1*b2*kc + a2**2*ka + a2*b1*ka - b1*b2*ka - b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**10
*x1**3*x2**3*a1**3*vm*( - 30150*a1**3*ka + 42705*a1**2*a2*ka + 27225*a1**2*b1*ka + 31515*a1**2*b2*ka - 33033*a1**2*b2*kc
 + 69*a1*a2**2*ka + 4950*a1*a2*b1*ka - 1100*a1*a2*b2*ka - 3201*a1*b1*b2*ka - 3201*a1*b2**2*ka + 2002*a1*b2**2*kc + a2**3
*ka + 33*a2**2*b1*ka + 132*a2**2*b2*ka - 198*a2*b1*b2*ka - 198*a2*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)**10*x1**2*x2**5*
a1**5*( - 234*a1**2*ka + 198*a1**2*kc - 22*a1*a2*ka + 66*a1*a2*kc + 36*a1*b1*ka + 64*a1*b2*ka - 108*a1*b2*kc - a2**2*ka 
- a2*b1*ka + b1*b2*ka + b2**2*ka) + 11*df(x1,t,2)*df(x1,t)**10*x1**2*x2**4*a1**4*vm*(3240*a1**2*ka - 4575*a1*a2*ka - 
2970*a1*b1*ka - 3090*a1*b2*ka + 3094*a1*b2*kc - 2*a2**2*ka - 240*a2*b1*ka + 56*a2*b2*ka + 169*b1*b2*ka + 169*b2**2*ka - 
91*b2**2*kc) + 1001*df(x1,t,2)*df(x1,t)**10*x1*x2**6*a1**6*(84*a1*ka - 78*a1*kc + 4*a2*ka - 11*a2*kc - 6*b1*ka - 11*b2*
ka + 18*b2*kc) + 11*df(x1,t,2)*df(x1,t)**10*x1*x2**5*a1**5*vm*( - 612*a1*ka + 1065*a2*ka + 702*b1*ka + 650*b2*ka - 637*
b2*kc) + 12870*df(x1,t,2)*df(x1,t)**10*x2**7*a1**7*( - ka + kc) - 858*df(x1,t,2)*df(x1,t)**10*x2**6*a1**6*ka*vm + 143*df
(x1,t,2)*df(x1,t)**9*x1**8*a1**6*(42*a1**2*ka + 6*a1**2*kc + 21*a1*a2*ka - 119*a1*a2*kc - 48*a1*b1*ka - 72*a1*b2*ka + 
170*a1*b2*kc + 14*a2**2*ka + 14*a2*b1*ka - 14*b1*b2*ka - 14*b2**2*ka) + 143*df(x1,t,2)*df(x1,t)**9*x1**7*x2*a1**6*( - 
384*a1**2*ka + 48*a1**2*kc - 168*a1*a2*ka + 833*a1*a2*kc + 336*a1*b1*ka + 525*a1*b2*ka - 1190*a1*b2*kc - 84*a2**2*ka - 
84*a2*b1*ka + 84*b1*b2*ka + 84*b2**2*ka) + df(x1,t,2)*df(x1,t)**9*x1**7*a1**4*vm*(1608*a1**3*ka - 4680*a1**2*a2*ka - 
2772*a1**2*b1*ka - 3432*a1**2*b2*ka + 9009*a1**2*b2*kc - 1160*a1*a2**2*ka - 3960*a1*a2*b1*ka - 550*a1*a2*b2*ka + 891*a1*
b1*b2*ka + 891*a1*b2**2*ka - 2002*a1*b2**2*kc - 20*a2**3*ka - 330*a2**2*b1*ka - 550*a2**2*b2*ka + 1320*a2*b1*b2*ka + 
1320*a2*b2**2*ka) + 3003*df(x1,t,2)*df(x1,t)**9*x1**6*x2**2*a1**6*(72*a1**2*ka - 24*a1**2*kc + 27*a1*a2*ka - 119*a1*a2*
kc - 48*a1*b1*ka - 78*a1*b2*ka + 170*a1*b2*kc + 10*a2**2*ka + 10*a2*b1*ka - 10*b1*b2*ka - 10*b2**2*ka) + df(x1,t,2)*df(
x1,t)**9*x1**6*x2*a1**4*vm*( - 16464*a1**3*ka + 37530*a1**2*a2*ka + 22176*a1**2*b1*ka + 29502*a1**2*b2*ka - 56056*a1**2*
b2*kc + 6455*a1*a2**2*ka + 21780*a1*a2*b1*ka + 1100*a1*a2*b2*ka - 6710*a1*b1*b2*ka - 6710*a1*b2**2*ka + 10010*a1*b2**2*
kc + 80*a2**3*ka + 1320*a2**2*b1*ka + 2200*a2**2*b2*ka - 5280*a2*b1*b2*ka - 5280*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)
**9*x1**5*x2**3*a1**6*( - 96*a1**2*ka + 48*a1**2*kc - 30*a1*a2*ka + 119*a1*a2*kc + 48*a1*b1*ka + 81*a1*b2*ka - 170*a1*b2
*kc - 8*a2**2*ka - 8*a2*b1*ka + 8*b1*b2*ka + 8*b2**2*ka) + 5*df(x1,t,2)*df(x1,t)**9*x1**5*x2**2*a1**4*vm*(12384*a1**3*ka
 - 24327*a1**2*a2*ka - 14256*a1**2*b1*ka - 18711*a1**2*b2*ka + 29029*a1**2*b2*kc - 2844*a1*a2**2*ka - 9504*a1*a2*b1*ka +
 220*a1*a2*b2*ka + 3586*a1*b1*b2*ka + 3586*a1*b2**2*ka - 4004*a1*b2**2*kc - 24*a2**3*ka - 396*a2**2*b1*ka - 660*a2**2*b2
*ka + 1584*a2*b1*b2*ka + 1584*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)**9*x1**4*x2**4*a1**6*(132*a1**2*ka - 84*a1**2*kc +
 33*a1*a2*ka - 119*a1*a2*kc - 48*a1*b1*ka - 84*a1*b2*ka + 170*a1*b2*kc + 6*a2**2*ka + 6*a2*b1*ka - 6*b1*b2*ka - 6*b2**2*
ka) + 10*df(x1,t,2)*df(x1,t)**9*x1**4*x2**3*a1**4*vm*( - 11520*a1**3*ka + 20484*a1**2*a2*ka + 11880*a1**2*b1*ka + 14784*
a1**2*b2*ka - 20020*a1**2*b2*kc + 1553*a1*a2**2*ka + 5148*a1*a2*b1*ka - 440*a1*a2*b2*ka - 2244*a1*b1*b2*ka - 2244*a1*b2
**2*ka + 2002*a1*b2**2*kc + 8*a2**3*ka + 132*a2**2*b1*ka + 220*a2**2*b2*ka - 528*a2*b1*b2*ka - 528*a2*b2**2*ka) + 3003*
df(x1,t,2)*df(x1,t)**9*x1**3*x2**5*a1**6*( - 192*a1**2*ka + 144*a1**2*kc - 36*a1*a2*ka + 119*a1*a2*kc + 48*a1*b1*ka + 87
*a1*b2*ka - 170*a1*b2*kc - 4*a2**2*ka - 4*a2*b1*ka + 4*b1*b2*ka + 4*b2**2*ka) + 5*df(x1,t,2)*df(x1,t)**9*x1**3*x2**4*a1
**4*vm*(22920*a1**3*ka - 37962*a1**2*a2*ka - 21780*a1**2*b1*ka - 25146*a1**2*b2*ka + 31031*a1**2*b2*kc - 1684*a1*a2**2*
ka - 5544*a1*a2*b1*ka + 770*a1*a2*b2*ka + 2695*a1*b1*b2*ka + 2695*a1*b2**2*ka - 2002*a1*b2**2*kc - 4*a2**3*ka - 66*a2**2
*b1*ka - 110*a2**2*b2*ka + 264*a2*b1*b2*ka + 264*a2*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)**9*x1**2*x2**6*a1**6*(312*a1**2
*ka - 264*a1**2*kc + 39*a1*a2*ka - 119*a1*a2*kc - 48*a1*b1*ka - 90*a1*b2*ka + 170*a1*b2*kc + 2*a2**2*ka + 2*a2*b1*ka - 2
*b1*b2*ka - 2*b2**2*ka) + 11*df(x1,t,2)*df(x1,t)**9*x1**2*x2**5*a1**5*vm*( - 5328*a1**2*ka + 8370*a1*a2*ka + 4752*a1*b1*
ka + 5022*a1*b2*ka - 5824*a1*b2*kc + 165*a2**2*ka + 540*a2*b1*ka - 100*a2*b2*ka - 286*b1*b2*ka - 286*b2**2*ka + 182*b2**
2*kc) + 143*df(x1,t,2)*df(x1,t)**9*x1*x2**7*a1**7*( - 672*a1*ka + 624*a1*kc - 42*a2*ka + 119*a2*kc + 48*b1*ka + 93*b2*ka
 - 170*b2*kc) + 11*df(x1,t,2)*df(x1,t)**9*x1*x2**6*a1**6*vm*(1104*a1*ka - 1665*a2*ka - 936*b1*ka - 897*b2*ka + 1001*b2*
kc) + 12870*df(x1,t,2)*df(x1,t)**9*x2**8*a1**8*(ka - kc) + 143*df(x1,t,2)*df(x1,t)**8*x1**9*a1**7*(28*a1**2*ka + 14*a1**
2*kc + 24*a1*a2*ka - 141*a1*a2*kc - 42*a1*b1*ka - 63*a1*b2*ka + 180*a1*b2*kc + 21*a2**2*ka + 21*a2*b1*ka - 21*b1*b2*ka -
 21*b2**2*ka) + 429*df(x1,t,2)*df(x1,t)**8*x1**8*x2*a1**7*( - 98*a1**2*ka - 14*a1**2*kc - 72*a1*a2*ka + 376*a1*a2*kc + 
112*a1*b1*ka + 176*a1*b2*ka - 480*a1*b2*kc - 49*a2**2*ka - 49*a2*b1*ka + 49*b1*b2*ka + 49*b2**2*ka) + 3*df(x1,t,2)*df(x1
,t)**8*x1**8*a1**5*vm*(190*a1**3*ka - 1036*a1**2*a2*ka - 660*a1**2*b1*ka - 396*a1**2*b2*ka + 3432*a1**2*b2*kc - 882*a1*
a2**2*ka - 1848*a1*a2*b1*ka - 990*a1*a2*b2*ka + 132*a1*b1*b2*ka + 132*a1*b2**2*ka - 1001*a1*b2**2*kc - 85*a2**3*ka - 330
*a2**2*b1*ka - 165*a2**2*b2*ka + 990*a2*b1*b2*ka + 990*a2*b2**2*ka) + 3003*df(x1,t,2)*df(x1,t)**8*x1**7*x2**2*a1**7*(64*
a1**2*ka - 8*a1**2*kc + 40*a1*a2*ka - 188*a1*a2*kc - 56*a1*b1*ka - 92*a1*b2*ka + 240*a1*b2*kc + 21*a2**2*ka + 21*a2*b1*
ka - 21*b1*b2*ka - 21*b2**2*ka) + 3*df(x1,t,2)*df(x1,t)**8*x1**7*x2*a1**5*vm*( - 3128*a1**3*ka + 10460*a1**2*a2*ka + 
6468*a1**2*b1*ka + 6732*a1**2*b2*ka - 25025*a1**2*b2*kc + 6291*a1*a2**2*ka + 12408*a1*a2*b1*ka + 4554*a1*a2*b2*ka - 1947
*a1*b1*b2*ka - 1947*a1*b2**2*ka + 6006*a1*b2**2*kc + 425*a2**3*ka + 1650*a2**2*b1*ka + 825*a2**2*b2*ka - 4950*a2*b1*b2*
ka - 4950*a2*b2**2*ka) + 3003*df(x1,t,2)*df(x1,t)**8*x1**6*x2**3*a1**7*( - 168*a1**2*ka + 56*a1**2*kc - 88*a1*a2*ka + 
376*a1*a2*kc + 112*a1*b1*ka + 192*a1*b2*ka - 480*a1*b2*kc - 35*a2**2*ka - 35*a2*b1*ka + 35*b1*b2*ka + 35*b2**2*ka) + 3*
df(x1,t,2)*df(x1,t)**8*x1**6*x2**2*a1**5*vm*(16464*a1**3*ka - 43668*a1**2*a2*ka - 25872*a1**2*b1*ka - 31152*a1**2*b2*ka 
+ 78078*a1**2*b2*kc - 18225*a1*a2**2*ka - 34320*a1*a2*b1*ka - 7920*a1*a2*b2*ka + 7755*a1*b1*b2*ka + 7755*a1*b2**2*ka - 
15015*a1*b2**2*kc - 850*a2**3*ka - 3300*a2**2*b1*ka - 1650*a2**2*b2*ka + 9900*a2*b1*b2*ka + 9900*a2*b2**2*ka) + 15015*df
(x1,t,2)*df(x1,t)**8*x1**5*x2**4*a1**7*(56*a1**2*ka - 28*a1**2*kc + 24*a1*a2*ka - 94*a1*a2*kc - 28*a1*b1*ka - 50*a1*b2*
ka + 120*a1*b2*kc + 7*a2**2*ka + 7*a2*b1*ka - 7*b1*b2*ka - 7*b2**2*ka) + 3*df(x1,t,2)*df(x1,t)**8*x1**5*x2**3*a1**5*vm*(
 - 42336*a1**3*ka + 97700*a1**2*a2*ka + 55440*a1**2*b1*ka + 68640*a1**2*b2*ka - 135135*a1**2*b2*kc + 27630*a1*a2**2*ka +
 50160*a1*a2*b1*ka + 5940*a1*a2*b2*ka - 14190*a1*b1*b2*ka - 14190*a1*b2**2*ka + 20020*a1*b2**2*kc + 850*a2**3*ka + 3300*
a2**2*b1*ka + 1650*a2**2*b2*ka - 9900*a2*b1*b2*ka - 9900*a2*b2**2*ka) + 3003*df(x1,t,2)*df(x1,t)**8*x1**4*x2**5*a1**7*( 
- 308*a1**2*ka + 196*a1**2*kc - 104*a1*a2*ka + 376*a1*a2*kc + 112*a1*b1*ka + 208*a1*b2*ka - 480*a1*b2*kc - 21*a2**2*ka -
 21*a2*b1*ka + 21*b1*b2*ka + 21*b2**2*ka) + 15*df(x1,t,2)*df(x1,t)**8*x1**4*x2**4*a1**5*vm*(12180*a1**3*ka - 25412*a1**2
*a2*ka - 13860*a1**2*b1*ka - 16764*a1**2*b2*ka + 28028*a1**2*b2*kc - 4644*a1*a2**2*ka - 8184*a1*a2*b1*ka - 198*a1*a2*b2*
ka + 2706*a1*b1*b2*ka + 2706*a1*b2**2*ka - 3003*a1*b2**2*kc - 85*a2**3*ka - 330*a2**2*b1*ka - 165*a2**2*b2*ka + 990*a2*
b1*b2*ka + 990*a2*b2**2*ka) + 3003*df(x1,t,2)*df(x1,t)**8*x1**3*x2**6*a1**7*(224*a1**2*ka - 168*a1**2*kc + 56*a1*a2*ka -
 188*a1*a2*kc - 56*a1*b1*ka - 108*a1*b2*ka + 240*a1*b2*kc + 7*a2**2*ka + 7*a2*b1*ka - 7*b1*b2*ka - 7*b2**2*ka) + 3*df(x1
,t,2)*df(x1,t)**8*x1**3*x2**5*a1**5*vm*( - 50680*a1**3*ka + 96516*a1**2*a2*ka + 50820*a1**2*b1*ka + 58476*a1**2*b2*ka - 
87087*a1**2*b2*kc + 10287*a1*a2**2*ka + 17688*a1*a2*b1*ka - 990*a1*a2*b2*ka - 6567*a1*b1*b2*ka - 6567*a1*b2**2*ka + 6006
*a1*b2**2*kc + 85*a2**3*ka + 330*a2**2*b1*ka + 165*a2**2*b2*ka - 990*a2*b1*b2*ka - 990*a2*b2**2*ka) + 429*df(x1,t,2)*df(
x1,t)**8*x1**2*x2**7*a1**7*( - 728*a1**2*ka + 616*a1**2*kc - 120*a1*a2*ka + 376*a1*a2*kc + 112*a1*b1*ka + 224*a1*b2*ka -
 480*a1*b2*kc - 7*a2**2*ka - 7*a2*b1*ka + 7*b1*b2*ka + 7*b2**2*ka) + 33*df(x1,t,2)*df(x1,t)**8*x1**2*x2**6*a1**6*vm*(
2128*a1**2*ka - 3620*a1*a2*ka - 1848*a1*b1*ka - 1992*a1*b2*ka + 2730*a1*b2*kc - 171*a2**2*ka - 288*a2*b1*ka + 36*a2*b2*
ka + 117*b1*b2*ka + 117*b2**2*ka - 91*b2**2*kc) + 429*df(x1,t,2)*df(x1,t)**8*x1*x2**8*a1**8*(196*a1*ka - 182*a1*kc + 16*
a2*ka - 47*a2*kc - 14*b1*ka - 29*b2*ka + 60*b2*kc) + 33*df(x1,t,2)*df(x1,t)**8*x1*x2**7*a1**7*vm*( - 464*a1*ka + 628*a2*
ka + 312*b1*ka + 312*b2*ka - 403*b2*kc) + 10010*df(x1,t,2)*df(x1,t)**8*x2**9*a1**9*( - ka + kc) + 858*df(x1,t,2)*df(x1,t
)**8*x2**8*a1**8*ka*vm + 143*df(x1,t,2)*df(x1,t)**7*x1**10*a1**8*(14*a1**2*ka + 14*a1**2*kc + 21*a1*a2*ka - 129*a1*a2*kc
 - 28*a1*b1*ka - 42*a1*b2*ka + 150*a1*b2*kc + 24*a2**2*ka + 24*a2*b1*ka - 24*b1*b2*ka - 24*b2**2*ka) + 429*df(x1,t,2)*df
(x1,t)**7*x1**9*x2*a1**8*( - 56*a1**2*ka - 28*a1**2*kc - 70*a1*a2*ka + 387*a1*a2*kc + 84*a1*b1*ka + 133*a1*b2*ka - 450*
a1*b2*kc - 64*a2**2*ka - 64*a2*b1*ka + 64*b1*b2*ka + 64*b2**2*ka) + df(x1,t,2)*df(x1,t)**7*x1**9*a1**6*vm*( - 20*a1**3*
ka - 1512*a1**2*a2*ka - 990*a1**2*b1*ka + 1089*a1**2*b2*ka + 9009*a1**2*b2*kc - 3096*a1*a2**2*ka - 5544*a1*a2*b1*ka - 
5808*a1*a2*b2*ka - 396*a1*b1*b2*ka - 396*a1*b2**2*ka - 3432*a1*b2**2*kc - 1032*a2**3*ka - 1980*a2**2*b1*ka + 396*a2**2*
b2*ka + 4752*a2*b1*b2*ka + 4752*a2*b2**2*ka) + 858*df(x1,t,2)*df(x1,t)**7*x1**8*x2**2*a1**8*(147*a1**2*ka + 21*a1**2*kc 
+ 154*a1*a2*ka - 774*a1*a2*kc - 168*a1*b1*ka - 280*a1*b2*ka + 900*a1*b2*kc + 112*a2**2*ka + 112*a2*b1*ka - 112*b1*b2*ka 
- 112*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**7*x1**8*x2*a1**6*vm*( - 210*a1**3*ka + 1482*a1**2*a2*ka + 990*a1**2*b1*ka + 
198*a1**2*b2*ka - 6292*a1**2*b2*kc + 2351*a1*a2**2*ka + 3696*a1*a2*b1*ka + 2860*a1*a2*b2*ka - 88*a1*b1*b2*ka - 88*a1*b2
**2*ka + 2002*a1*b2**2*kc + 516*a2**3*ka + 990*a2**2*b1*ka - 198*a2**2*b2*ka - 2376*a2*b1*b2*ka - 2376*a2*b2**2*ka) + 
12012*df(x1,t,2)*df(x1,t)**7*x1**7*x2**3*a1**8*( - 32*a1**2*ka + 4*a1**2*kc - 28*a1*a2*ka + 129*a1*a2*kc + 28*a1*b1*ka +
 49*a1*b2*ka - 150*a1*b2*kc - 16*a2**2*ka - 16*a2*b1*ka + 16*b1*b2*ka + 16*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**7*x1**7*
x2**2*a1**6*vm*(1878*a1**3*ka - 7665*a1**2*a2*ka - 4851*a1**2*b1*ka - 3773*a1**2*b2*ka + 23023*a1**2*b2*kc - 8688*a1*a2
**2*ka - 12474*a1*a2*b1*ka - 6996*a1*a2*b2*ka + 1221*a1*b1*b2*ka + 1221*a1*b2**2*ka - 6006*a1*b2**2*kc - 1290*a2**3*ka -
 2475*a2**2*b1*ka + 495*a2**2*b2*ka + 5940*a2*b1*b2*ka + 5940*a2*b2**2*ka) + 6006*df(x1,t,2)*df(x1,t)**7*x1**6*x2**4*a1
**8*(126*a1**2*ka - 42*a1**2*kc + 91*a1*a2*ka - 387*a1*a2*kc - 84*a1*b1*ka - 154*a1*b2*ka + 450*a1*b2*kc + 40*a2**2*ka +
 40*a2*b1*ka - 40*b1*b2*ka - 40*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**7*x1**6*x2**3*a1**6*vm*( - 6860*a1**3*ka + 21924*a1
**2*a2*ka + 12936*a1**2*b1*ka + 13398*a1**2*b2*ka - 48048*a1**2*b2*kc + 17205*a1*a2**2*ka + 23100*a1*a2*b1*ka + 9020*a1*
a2*b2*ka - 3630*a1*b1*b2*ka - 3630*a1*b2**2*ka + 10010*a1*b2**2*kc + 1720*a2**3*ka + 3300*a2**2*b1*ka - 660*a2**2*b2*ka 
- 7920*a2*b1*b2*ka - 7920*a2*b2**2*ka) + 6006*df(x1,t,2)*df(x1,t)**7*x1**5*x2**5*a1**8*( - 168*a1**2*ka + 84*a1**2*kc - 
98*a1*a2*ka + 387*a1*a2*kc + 84*a1*b1*ka + 161*a1*b2*ka - 450*a1*b2*kc - 32*a2**2*ka - 32*a2*b1*ka + 32*b1*b2*ka + 32*b2
**2*ka) + 6*df(x1,t,2)*df(x1,t)**7*x1**5*x2**4*a1**6*vm*(27384*a1**3*ka - 75390*a1**2*a2*ka - 41580*a1**2*b1*ka - 47355*
a1**2*b2*ka + 125125*a1**2*b2*kc - 39860*a1*a2**2*ka - 50820*a1*a2*b1*ka - 12760*a1*a2*b2*ka + 10450*a1*b1*b2*ka + 10450
*a1*b2**2*ka - 20020*a1*b2**2*kc - 2580*a2**3*ka - 4950*a2**2*b1*ka + 990*a2**2*b2*ka + 11880*a2*b1*b2*ka + 11880*a2*b2
**2*ka) + 12012*df(x1,t,2)*df(x1,t)**7*x1**4*x2**6*a1**8*(77*a1**2*ka - 49*a1**2*kc + 35*a1*a2*ka - 129*a1*a2*kc - 28*a1
*b1*ka - 56*a1*b2*ka + 150*a1*b2*kc + 8*a2**2*ka + 8*a2*b1*ka - 8*b1*b2*ka - 8*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**7*x1
**4*x2**5*a1**6*vm*( - 16380*a1**3*ka + 40026*a1**2*a2*ka + 20790*a1**2*b1*ka + 24178*a1**2*b2*ka - 52052*a1**2*b2*kc + 
13593*a1*a2**2*ka + 16632*a1*a2*b1*ka + 2244*a1*a2*b2*ka - 4092*a1*b1*b2*ka - 4092*a1*b2**2*ka + 6006*a1*b2**2*kc + 516*
a2**3*ka + 990*a2**2*b1*ka - 198*a2**2*b2*ka - 2376*a2*b1*b2*ka - 2376*a2*b2**2*ka) + 1716*df(x1,t,2)*df(x1,t)**7*x1**3*
x2**7*a1**8*( - 336*a1**2*ka + 252*a1**2*kc - 112*a1*a2*ka + 387*a1*a2*kc + 84*a1*b1*ka + 175*a1*b2*ka - 450*a1*b2*kc - 
16*a2**2*ka - 16*a2*b1*ka + 16*b1*b2*ka + 16*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**7*x1**3*x2**6*a1**6*vm*(11970*a1**3*ka 
- 25767*a1**2*a2*ka - 12705*a1**2*b1*ka - 14553*a1**2*b2*ka + 27027*a1**2*b2*kc - 5076*a1*a2**2*ka - 6006*a1*a2*b1*ka - 
220*a1*a2*b2*ka + 1683*a1*b1*b2*ka + 1683*a1*b2**2*ka - 2002*a1*b2**2*kc - 86*a2**3*ka - 165*a2**2*b1*ka + 33*a2**2*b2*
ka + 396*a2*b1*b2*ka + 396*a2*b2**2*ka) + 429*df(x1,t,2)*df(x1,t)**7*x1**2*x2**8*a1**8*(546*a1**2*ka - 462*a1**2*kc + 
119*a1*a2*ka - 387*a1*a2*kc - 84*a1*b1*ka - 182*a1*b2*ka + 450*a1*b2*kc + 8*a2**2*ka + 8*a2*b1*ka - 8*b1*b2*ka - 8*b2**2
*ka) + 132*df(x1,t,2)*df(x1,t)**7*x1**2*x2**7*a1**7*vm*( - 468*a1**2*ka + 840*a1*a2*ka + 396*a1*b1*ka + 438*a1*b2*ka - 
728*a1*b2*kc + 73*a2**2*ka + 84*a2*b1*ka - 4*a2*b2*ka - 26*b1*b2*ka - 26*b2**2*ka + 26*b2**2*kc) + 143*df(x1,t,2)*df(x1,
t)**7*x1*x2**9*a1**9*( - 392*a1*ka + 364*a1*kc - 42*a2*ka + 129*a2*kc + 28*b1*ka + 63*b2*ka - 150*b2*kc) + 33*df(x1,t,2)
*df(x1,t)**7*x1*x2**8*a1**8*vm*(420*a1*ka - 516*a2*ka - 234*b1*ka - 247*b2*ka + 377*b2*kc) + 6006*df(x1,t,2)*df(x1,t)**7
*x2**10*a1**10*(ka - kc) - 1144*df(x1,t,2)*df(x1,t)**7*x2**9*a1**9*ka*vm + 91*df(x1,t,2)*df(x1,t)**6*x1**11*a1**9*(8*a1
**2*ka + 14*a1**2*kc + 22*a1*a2*ka - 143*a1*a2*kc - 22*a1*b1*ka - 33*a1*b2*ka + 154*a1*b2*kc + 33*a2**2*ka + 33*a2*b1*ka
 - 33*b1*b2*ka - 33*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)**6*x1**10*x2*a1**9*( - 10*a1**2*ka - 10*a1**2*kc - 22*a1*a2*ka 
+ 130*a1*a2*kc + 20*a1*b1*ka + 32*a1*b2*ka - 140*a1*b2*kc - 27*a2**2*ka - 27*a2*b1*ka + 27*b1*b2*ka + 27*b2**2*ka) + df(
x1,t,2)*df(x1,t)**6*x1**10*a1**7*vm*( - 112*a1**3*ka - 765*a1**2*a2*ka - 330*a1**2*b1*ka + 1870*a1**2*b2*ka + 6006*a1**2
*b2*kc - 1920*a1*a2**2*ka - 3960*a1*a2*b1*ka - 6864*a1*a2*b2*ka - 891*a1*b1*b2*ka - 891*a1*b2**2*ka - 3003*a1*b2**2*kc -
 2268*a2**3*ka - 2772*a2**2*b1*ka + 1848*a2**2*b2*ka + 5544*a2*b1*b2*ka + 5544*a2*b2**2*ka) + 3003*df(x1,t,2)*df(x1,t)**
6*x1**9*x2**2*a1**9*(20*a1**2*ka + 10*a1**2*kc + 36*a1*a2*ka - 195*a1*a2*kc - 30*a1*b1*ka - 51*a1*b2*ka + 210*a1*b2*kc +
 36*a2**2*ka + 36*a2*b1*ka - 36*b1*b2*ka - 36*b2**2*ka) + 3*df(x1,t,2)*df(x1,t)**6*x1**9*x2*a1**7*vm*(100*a1**3*ka + 
2709*a1**2*a2*ka + 1650*a1**2*b1*ka - 3234*a1**2*b2*ka - 19019*a1**2*b2*kc + 8044*a1*a2**2*ka + 12408*a1*a2*b1*ka + 
16192*a1*a2*b2*ka + 1364*a1*b1*b2*ka + 1364*a1*b2**2*ka + 8008*a1*b2**2*kc + 5292*a2**3*ka + 6468*a2**2*b1*ka - 4312*a2
**2*b2*ka - 12936*a2*b1*b2*ka - 12936*a2*b2**2*ka) + 6006*df(x1,t,2)*df(x1,t)**6*x1**8*x2**3*a1**9*( - 35*a1**2*ka - 5*
a1**2*kc - 52*a1*a2*ka + 260*a1*a2*kc + 40*a1*b1*ka + 72*a1*b2*ka - 280*a1*b2*kc - 42*a2**2*ka - 42*a2*b1*ka + 42*b1*b2*
ka + 42*b2**2*ka) + 6*df(x1,t,2)*df(x1,t)**6*x1**8*x2**2*a1**7*vm*(675*a1**3*ka - 7578*a1**2*a2*ka - 4950*a1**2*b1*ka + 
1782*a1**2*b2*ka + 40040*a1**2*b2*kc - 19194*a1*a2**2*ka - 24948*a1*a2*b1*ka - 24640*a1*a2*b2*ka - 616*a1*b1*b2*ka - 616
*a1*b2**2*ka - 14014*a1*b2**2*kc - 7938*a2**3*ka - 9702*a2**2*b1*ka + 6468*a2**2*b2*ka + 19404*a2*b1*b2*ka + 19404*a2*b2
**2*ka) + 6006*df(x1,t,2)*df(x1,t)**6*x1**7*x2**4*a1**9*(80*a1**2*ka - 10*a1**2*kc + 98*a1*a2*ka - 455*a1*a2*kc - 70*a1*
b1*ka - 133*a1*b2*ka + 490*a1*b2*kc + 63*a2**2*ka + 63*a2*b1*ka - 63*b1*b2*ka - 63*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**6
*x1**7*x2**3*a1**7*vm*( - 2350*a1**3*ka + 12915*a1**2*a2*ka + 8085*a1**2*b1*ka + 3311*a1**2*b2*ka - 49049*a1**2*b2*kc + 
24311*a1*a2**2*ka + 28182*a1*a2*b1*ka + 20944*a1*a2*b2*ka - 1155*a1*b1*b2*ka - 1155*a1*b2**2*ka + 14014*a1*b2**2*kc + 
6615*a2**3*ka + 8085*a2**2*b1*ka - 5390*a2**2*b2*ka - 16170*a2*b1*b2*ka - 16170*a2*b2**2*ka) + 126126*df(x1,t,2)*df(x1,t
)**6*x1**6*x2**5*a1**9*( - 6*a1**2*ka + 2*a1**2*kc - 6*a1*a2*ka + 26*a1*a2*kc + 4*a1*b1*ka + 8*a1*b2*ka - 28*a1*b2*kc - 
3*a2**2*ka - 3*a2*b1*ka + 3*b1*b2*ka + 3*b2**2*ka) + 42*df(x1,t,2)*df(x1,t)**6*x1**6*x2**4*a1**7*vm*(1960*a1**3*ka - 
7947*a1**2*a2*ka - 4620*a1**2*b1*ka - 3696*a1**2*b2*ka + 22022*a1**2*b2*kc - 10510*a1*a2**2*ka - 11220*a1*a2*b1*ka - 
6160*a1*a2*b2*ka + 1045*a1*b1*b2*ka + 1045*a1*b2**2*ka - 5005*a1*b2**2*kc - 1890*a2**3*ka - 2310*a2**2*b1*ka + 1540*a2**
2*b2*ka + 4620*a2*b1*b2*ka + 4620*a2*b2**2*ka) + 42042*df(x1,t,2)*df(x1,t)**6*x1**5*x2**6*a1**9*(20*a1**2*ka - 10*a1**2*
kc + 16*a1*a2*ka - 65*a1*a2*kc - 10*a1*b1*ka - 21*a1*b2*ka + 70*a1*b2*kc + 6*a2**2*ka + 6*a2*b1*ka - 6*b1*b2*ka - 6*b2**
2*ka) + 42*df(x1,t,2)*df(x1,t)**6*x1**5*x2**5*a1**7*vm*( - 3288*a1**3*ka + 11025*a1**2*a2*ka + 5940*a1**2*b1*ka + 5940*
a1**2*b2*ka - 23023*a1**2*b2*kc + 9870*a1*a2**2*ka + 9900*a1*a2*b1*ka + 3872*a1*a2*b2*ka - 1342*a1*b1*b2*ka - 1342*a1*b2
**2*ka + 4004*a1*b2**2*kc + 1134*a2**3*ka + 1386*a2**2*b1*ka - 924*a2**2*b2*ka - 2772*a2*b1*b2*ka - 2772*a2*b2**2*ka) + 
12012*df(x1,t,2)*df(x1,t)**6*x1**4*x2**7*a1**9*( - 55*a1**2*ka + 35*a1**2*kc - 34*a1*a2*ka + 130*a1*a2*kc + 20*a1*b1*ka 
+ 44*a1*b2*ka - 140*a1*b2*kc - 9*a2**2*ka - 9*a2*b1*ka + 9*b1*b2*ka + 9*b2**2*ka) + 84*df(x1,t,2)*df(x1,t)**6*x1**4*x2**
6*a1**7*vm*(1725*a1**3*ka - 4923*a1**2*a2*ka - 2475*a1**2*b1*ka - 2717*a1**2*b2*ka + 8008*a1**2*b2*kc - 2833*a1*a2**2*ka
 - 2706*a1*a2*b1*ka - 704*a1*a2*b2*ka + 462*a1*b1*b2*ka + 462*a1*b2**2*ka - 1001*a1*b2**2*kc - 189*a2**3*ka - 231*a2**2*
b1*ka + 154*a2**2*b2*ka + 462*a2*b1*b2*ka + 462*a2*b2**2*ka) + 9009*df(x1,t,2)*df(x1,t)**6*x1**3*x2**8*a1**9*(40*a1**2*
ka - 30*a1**2*kc + 18*a1*a2*ka - 65*a1*a2*kc - 10*a1*b1*ka - 23*a1*b2*ka + 70*a1*b2*kc + 3*a2**2*ka + 3*a2*b1*ka - 3*b1*
b2*ka - 3*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**6*x1**3*x2**7*a1**7*vm*( - 8050*a1**3*ka + 19179*a1**2*a2*ka + 9075*a1**2*
b1*ka + 10329*a1**2*b2*ka - 25025*a1**2*b2*kc + 6397*a1*a2**2*ka + 5874*a1*a2*b1*ka + 880*a1*a2*b2*ka - 1177*a1*b1*b2*ka
 - 1177*a1*b2**2*ka + 2002*a1*b2**2*kc + 189*a2**3*ka + 231*a2**2*b1*ka - 154*a2**2*b2*ka - 462*a2*b1*b2*ka - 462*a2*b2
**2*ka) + 1001*df(x1,t,2)*df(x1,t)**6*x1**2*x2**9*a1**9*( - 130*a1**2*ka + 110*a1**2*kc - 38*a1*a2*ka + 130*a1*a2*kc + 
20*a1*b1*ka + 48*a1*b2*ka - 140*a1*b2*kc - 3*a2**2*ka - 3*a2*b1*ka + 3*b1*b2*ka + 3*b2**2*ka) + 33*df(x1,t,2)*df(x1,t)**
6*x1**2*x2**8*a1**8*vm*(1200*a1**2*ka - 2205*a1*a2*ka - 990*a1*b1*ka - 1134*a1*b2*ka + 2366*a1*b2*kc - 324*a2**2*ka - 
288*a2*b1*ka - 16*a2*b2*ka + 65*b1*b2*ka + 65*b2**2*ka - 91*b2**2*kc) + 1001*df(x1,t,2)*df(x1,t)**6*x1*x2**10*a1**10*(28
*a1*ka - 26*a1*kc + 4*a2*ka - 13*a2*kc - 2*b1*ka - 5*b2*ka + 14*b2*kc) + 11*df(x1,t,2)*df(x1,t)**6*x1*x2**9*a1**9*vm*( -
 820*a1*ka + 909*a2*ka + 390*b1*ka + 442*b2*ka - 819*b2*kc) + 2730*df(x1,t,2)*df(x1,t)**6*x2**11*a1**11*( - ka + kc) + 
858*df(x1,t,2)*df(x1,t)**6*x2**10*a1**10*ka*vm + 91*df(x1,t,2)*df(x1,t)**5*x1**12*a1**10*(2*a1**2*ka + 6*a1**2*kc + 11*
a1*a2*ka - 77*a1*a2*kc - 8*a1*b1*ka - 12*a1*b2*ka + 78*a1*b2*kc + 22*a2**2*ka + 22*a2*b1*ka - 22*b1*b2*ka - 22*b2**2*ka)
 + 91*df(x1,t,2)*df(x1,t)**5*x1**11*x2*a1**10*( - 32*a1**2*ka - 56*a1**2*kc - 132*a1*a2*ka + 847*a1*a2*kc + 88*a1*b1*ka 
+ 143*a1*b2*ka - 858*a1*b2*kc - 220*a2**2*ka - 220*a2*b1*ka + 220*b1*b2*ka + 220*b2**2*ka) + df(x1,t,2)*df(x1,t)**5*x1**
11*a1**8*vm*( - 44*a1**3*ka - 500*a1**2*a2*ka - 66*a1**2*b1*ka + 1320*a1**2*b2*ka + 3003*a1**2*b2*kc - 324*a1*a2**2*ka -
 1980*a1*a2*b1*ka - 5346*a1*a2*b2*ka - 825*a1*b1*b2*ka - 825*a1*b2**2*ka - 2002*a1*b2**2*kc - 3144*a2**3*ka - 2772*a2**2
*b1*ka + 2772*a2**2*b2*ka + 4752*a2*b1*b2*ka + 4752*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)**5*x1**10*x2**2*a1**10*(4*a1
**2*ka + 4*a1**2*kc + 13*a1*a2*ka - 77*a1*a2*kc - 8*a1*b1*ka - 14*a1*b2*ka + 78*a1*b2*kc + 18*a2**2*ka + 18*a2*b1*ka - 
18*b1*b2*ka - 18*b2**2*ka) + df(x1,t,2)*df(x1,t)**5*x1**10*x2*a1**8*vm*(424*a1**3*ka + 4330*a1**2*a2*ka + 1320*a1**2*b1*
ka - 10230*a1**2*b2*ka - 32032*a1**2*b2*kc + 10611*a1*a2**2*ka + 21780*a1*a2*b1*ka + 43956*a1*a2*b2*ka + 5742*a1*b1*b2*
ka + 5742*a1*b2**2*ka + 18018*a1*b2**2*kc + 25152*a2**3*ka + 22176*a2**2*b1*ka - 22176*a2**2*b2*ka - 38016*a2*b1*b2*ka -
 38016*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)**5*x1**9*x2**3*a1**10*( - 16*a1**2*ka - 8*a1**2*kc - 42*a1*a2*ka + 231*a1
*a2*kc + 24*a1*b1*ka + 45*a1*b2*ka - 234*a1*b2*kc - 48*a2**2*ka - 48*a2*b1*ka + 48*b1*b2*ka + 48*b2**2*ka) + df(x1,t,2)*
df(x1,t)**5*x1**9*x2**2*a1**8*vm*( - 1000*a1**3*ka - 20655*a1**2*a2*ka - 9900*a1**2*b1*ka + 32175*a1**2*b2*ka + 153153*
a1**2*b2*kc - 73224*a1*a2**2*ka - 102960*a1*a2*b1*ka - 159192*a1*a2*b2*ka - 16236*a1*b1*b2*ka - 16236*a1*b2**2*ka - 
72072*a1*b2**2*kc - 88032*a2**3*ka - 77616*a2**2*b1*ka + 77616*a2**2*b2*ka + 133056*a2*b1*b2*ka + 133056*a2*b2**2*ka) + 
30030*df(x1,t,2)*df(x1,t)**5*x1**8*x2**4*a1**10*(7*a1**2*ka + a1**2*kc + 15*a1*a2*ka - 77*a1*a2*kc - 8*a1*b1*ka - 16*a1*
b2*ka + 78*a1*b2*kc + 14*a2**2*ka + 14*a2*b1*ka - 14*b1*b2*ka - 14*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**5*x1**8*x2**3*a1
**8*vm*( - 200*a1**3*ka + 5780*a1**2*a2*ka + 3300*a1**2*b1*ka - 3960*a1**2*b2*ka - 36036*a1**2*b2*kc + 20223*a1*a2**2*ka
 + 23100*a1*a2*b1*ka + 27720*a1*a2*b2*ka + 1848*a1*b1*b2*ka + 1848*a1*b2**2*ka + 14014*a1*b2**2*kc + 14672*a2**3*ka + 
12936*a2**2*b1*ka - 12936*a2**2*b2*ka - 22176*a2*b1*b2*ka - 22176*a2*b2**2*ka) + 6006*df(x1,t,2)*df(x1,t)**5*x1**7*x2**5
*a1**10*( - 64*a1**2*ka + 8*a1**2*kc - 112*a1*a2*ka + 539*a1*a2*kc + 56*a1*b1*ka + 119*a1*b2*ka - 546*a1*b2*kc - 84*a2**
2*ka - 84*a2*b1*ka + 84*b1*b2*ka + 84*b2**2*ka) + 6*df(x1,t,2)*df(x1,t)**5*x1**7*x2**4*a1**8*vm*(3140*a1**3*ka - 27650*
a1**2*a2*ka - 16170*a1**2*b1*ka + 2310*a1**2*b2*ka + 133133*a1**2*b2*kc - 78624*a1*a2**2*ka - 78540*a1*a2*b1*ka - 73458*
a1*a2*b2*ka - 1617*a1*b1*b2*ka - 1617*a1*b2**2*ka - 42042*a1*b2**2*kc - 36680*a2**3*ka - 32340*a2**2*b1*ka + 32340*a2**2
*b2*ka + 55440*a2*b1*b2*ka + 55440*a2*b2**2*ka) + 42042*df(x1,t,2)*df(x1,t)**5*x1**6*x2**6*a1**10*(12*a1**2*ka - 4*a1**2
*kc + 17*a1*a2*ka - 77*a1*a2*kc - 8*a1*b1*ka - 18*a1*b2*ka + 78*a1*b2*kc + 10*a2**2*ka + 10*a2*b1*ka - 10*b1*b2*ka - 10*
b2**2*ka) + 42*df(x1,t,2)*df(x1,t)**5*x1**6*x2**5*a1**8*vm*( - 1176*a1**3*ka + 6570*a1**2*a2*ka + 3696*a1**2*b1*ka + 
1650*a1**2*b2*ka - 24024*a1**2*b2*kc + 13797*a1*a2**2*ka + 12540*a1*a2*b1*ka + 9108*a1*a2*b2*ka - 330*a1*b1*b2*ka - 330*
a1*b2**2*ka + 6006*a1*b2**2*kc + 4192*a2**3*ka + 3696*a2**2*b1*ka - 3696*a2**2*b2*ka - 6336*a2*b1*b2*ka - 6336*a2*b2**2*
ka) + 30030*df(x1,t,2)*df(x1,t)**5*x1**5*x2**7*a1**10*( - 16*a1**2*ka + 8*a1**2*kc - 18*a1*a2*ka + 77*a1*a2*kc + 8*a1*b1
*ka + 19*a1*b2*ka - 78*a1*b2*kc - 8*a2**2*ka - 8*a2*b1*ka + 8*b1*b2*ka + 8*b2**2*ka) + 42*df(x1,t,2)*df(x1,t)**5*x1**5*
x2**6*a1**8*vm*(1776*a1**3*ka - 7465*a1**2*a2*ka - 3960*a1**2*b1*ka - 3135*a1**2*b2*ka + 21021*a1**2*b2*kc - 10908*a1*a2
**2*ka - 9240*a1*a2*b1*ka - 5148*a1*a2*b2*ka + 594*a1*b1*b2*ka + 594*a1*b2**2*ka - 4004*a1*b2**2*kc - 2096*a2**3*ka - 
1848*a2**2*b1*ka + 1848*a2**2*b2*ka + 3168*a2*b1*b2*ka + 3168*a2*b2**2*ka) + 15015*df(x1,t,2)*df(x1,t)**5*x1**4*x2**8*a1
**10*(22*a1**2*ka - 14*a1**2*kc + 19*a1*a2*ka - 77*a1*a2*kc - 8*a1*b1*ka - 20*a1*b2*ka + 78*a1*b2*kc + 6*a2**2*ka + 6*a2
*b1*ka - 6*b1*b2*ka - 6*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**5*x1**4*x2**7*a1**8*vm*( - 6000*a1**3*ka + 19840*a1**2*a2*ka
 + 9900*a1**2*b1*ka + 9900*a1**2*b2*ka - 44044*a1**2*b2*kc + 18927*a1*a2**2*ka + 15180*a1*a2*b1*ka + 6336*a1*a2*b2*ka - 
1452*a1*b1*b2*ka - 1452*a1*b2**2*ka + 6006*a1*b2**2*kc + 2096*a2**3*ka + 1848*a2**2*b1*ka - 1848*a2**2*b2*ka - 3168*a2*
b1*b2*ka - 3168*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)**5*x1**3*x2**9*a1**10*( - 32*a1**2*ka + 24*a1**2*kc - 20*a1*a2*
ka + 77*a1*a2*kc + 8*a1*b1*ka + 21*a1*b2*ka - 78*a1*b2*kc - 4*a2**2*ka - 4*a2*b1*ka + 4*b1*b2*ka + 4*b2**2*ka) + 3*df(x1
,t,2)*df(x1,t)**5*x1**3*x2**8*a1**8*vm*(15100*a1**3*ka - 38520*a1**2*a2*ka - 18150*a1**2*b1*ka - 20460*a1**2*b2*ka + 
69069*a1**2*b2*kc - 21492*a1*a2**2*ka - 16500*a1*a2*b1*ka - 4950*a1*a2*b2*ka + 2013*a1*b1*b2*ka + 2013*a1*b2**2*ka - 
6006*a1*b2**2*kc - 1048*a2**3*ka - 924*a2**2*b1*ka + 924*a2**2*b2*ka + 1584*a2*b1*b2*ka + 1584*a2*b2**2*ka) + 1001*df(x1
,t,2)*df(x1,t)**5*x1**2*x2**10*a1**10*(52*a1**2*ka - 44*a1**2*kc + 21*a1*a2*ka - 77*a1*a2*kc - 8*a1*b1*ka - 22*a1*b2*ka 
+ 78*a1*b2*kc + 2*a2**2*ka + 2*a2*b1*ka - 2*b1*b2*ka - 2*b2**2*ka) + 11*df(x1,t,2)*df(x1,t)**5*x1**2*x2**9*a1**9*vm*( - 
1640*a1**2*ka + 2950*a1*a2*ka + 1320*a1*b1*ka + 1590*a1*b2*ka - 4368*a1*b2*kc + 729*a2**2*ka + 540*a2*b1*ka + 108*a2*b2*
ka - 78*b1*b2*ka - 78*b2**2*ka + 182*b2**2*kc) + 91*df(x1,t,2)*df(x1,t)**5*x1*x2**11*a1**11*( - 112*a1*ka + 104*a1*kc - 
22*a2*ka + 77*a2*kc + 8*b1*ka + 23*b2*ka - 78*b2*kc) + 11*df(x1,t,2)*df(x1,t)**5*x1*x2**10*a1**10*vm*(376*a1*ka - 365*a2
*ka - 156*b1*ka - 195*b2*ka + 455*b2*kc) + 910*df(x1,t,2)*df(x1,t)**5*x2**12*a1**12*(ka - kc) - 416*df(x1,t,2)*df(x1,t)
**5*x2**11*a1**11*ka*vm + 7*df(x1,t,2)*df(x1,t)**4*x1**13*a1**11*(4*a1**2*ka + 22*a1**2*kc + 52*a1*a2*ka - 403*a1*a2*kc 
- 26*a1*b1*ka - 39*a1*b2*ka + 390*a1*b2*kc + 143*a2**2*ka + 143*a2*b1*ka - 143*b1*b2*ka - 143*b2**2*ka) + 91*df(x1,t,2)*
df(x1,t)**4*x1**12*x2*a1**11*( - 6*a1**2*ka - 18*a1**2*kc - 52*a1*a2*ka + 372*a1*a2*kc + 24*a1*b1*ka + 40*a1*b2*ka - 360
*a1*b2*kc - 121*a2**2*ka - 121*a2*b1*ka + 121*b1*b2*ka + 121*b2**2*ka) + df(x1,t,2)*df(x1,t)**4*x1**12*a1**9*vm*( - 6*a1
**3*ka - 270*a1**2*a2*ka - 6*a1**2*b1*ka + 534*a1**2*b2*ka + 1092*a1**2*b2*kc + 390*a1*a2**2*ka - 660*a1*a2*b1*ka - 2750
*a1*a2*b2*ka - 462*a1*b1*b2*ka - 462*a1*b2**2*ka - 1001*a1*b2**2*kc - 2895*a2**3*ka - 1980*a2**2*b1*ka + 2475*a2**2*b2*
ka + 2970*a2*b1*b2*ka + 2970*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)**4*x1**11*x2**2*a1**11*(48*a1**2*ka + 84*a1**2*kc + 
308*a1*a2*ka - 2046*a1*a2*kc - 132*a1*b1*ka - 242*a1*b2*ka + 1980*a1*b2*kc + 605*a2**2*ka + 605*a2*b1*ka - 605*b1*b2*ka 
- 605*b2**2*ka) + df(x1,t,2)*df(x1,t)**4*x1**11*x2*a1**9*vm*(108*a1**3*ka + 2430*a1**2*a2*ka + 198*a1**2*b1*ka - 5214*a1
**2*b2*ka - 13013*a1**2*b2*kc + 505*a1*a2**2*ka + 8580*a1*a2*b1*ka + 25850*a1*a2*b2*ka + 4015*a1*b1*b2*ka + 4015*a1*b2**
2*ka + 10010*a1*b2**2*kc + 26055*a2**3*ka + 17820*a2**2*b1*ka - 22275*a2**2*b2*ka - 26730*a2*b1*b2*ka - 26730*a2*b2**2*
ka) + 5005*df(x1,t,2)*df(x1,t)**4*x1**10*x2**3*a1**11*( - 4*a1**2*ka - 4*a1**2*kc - 20*a1*a2*ka + 124*a1*a2*kc + 8*a1*b1
*ka + 16*a1*b2*ka - 120*a1*b2*kc - 33*a2**2*ka - 33*a2*b1*ka + 33*b1*b2*ka + 33*b2**2*ka) + 5*df(x1,t,2)*df(x1,t)**4*x1
**10*x2**2*a1**9*vm*( - 120*a1**3*ka - 2142*a1**2*a2*ka - 396*a1**2*b1*ka + 4444*a1**2*b2*ka + 14014*a1**2*b2*kc - 4419*
a1*a2**2*ka - 9504*a1*a2*b1*ka - 21780*a1*a2*b2*ka - 3069*a1*b1*b2*ka - 3069*a1*b2**2*ka - 9009*a1*b2**2*kc - 20844*a2**
3*ka - 14256*a2**2*b1*ka + 17820*a2**2*b2*ka + 21384*a2*b1*b2*ka + 21384*a2*b2**2*ka) + 15015*df(x1,t,2)*df(x1,t)**4*x1
**9*x2**4*a1**11*(4*a1**2*ka + 2*a1**2*kc + 16*a1*a2*ka - 93*a1*a2*kc - 6*a1*b1*ka - 13*a1*b2*ka + 90*a1*b2*kc + 22*a2**
2*ka + 22*a2*b1*ka - 22*b1*b2*ka - 22*b2**2*ka) + 5*df(x1,t,2)*df(x1,t)**4*x1**9*x2**3*a1**9*vm*(280*a1**3*ka + 6318*a1
**2*a2*ka + 1980*a1**2*b1*ka - 10692*a1**2*b2*ka - 45045*a1**2*b2*kc + 22356*a1*a2**2*ka + 30096*a1*a2*b1*ka + 54120*a1*
a2*b2*ka + 6732*a1*b1*b2*ka + 6732*a1*b2**2*ka + 24024*a1*b2**2*kc + 48636*a2**3*ka + 33264*a2**2*b1*ka - 41580*a2**2*b2
*ka - 49896*a2*b1*b2*ka - 49896*a2*b2**2*ka) + 6006*df(x1,t,2)*df(x1,t)**4*x1**8*x2**5*a1**11*( - 21*a1**2*ka - 3*a1**2*
kc - 68*a1*a2*ka + 372*a1*a2*kc + 24*a1*b1*ka + 56*a1*b2*ka - 360*a1*b2*kc - 77*a2**2*ka - 77*a2*b1*ka + 77*b1*b2*ka + 
77*b2**2*ka) + 30*df(x1,t,2)*df(x1,t)**4*x1**8*x2**4*a1**9*vm*( - 15*a1**3*ka - 2322*a1**2*a2*ka - 990*a1**2*b1*ka + 
2574*a1**2*b2*ka + 16016*a1**2*b2*kc - 9604*a1*a2**2*ka - 10164*a1*a2*b1*ka - 14630*a1*a2*b2*ka - 1540*a1*b1*b2*ka - 
1540*a1*b2**2*ka - 7007*a1*b2**2*kc - 12159*a2**3*ka - 8316*a2**2*b1*ka + 10395*a2**2*b2*ka + 12474*a2*b1*b2*ka + 12474*
a2*b2**2*ka) + 6006*df(x1,t,2)*df(x1,t)**4*x1**7*x2**6*a1**11*(32*a1**2*ka - 4*a1**2*kc + 84*a1*a2*ka - 434*a1*a2*kc - 
28*a1*b1*ka - 70*a1*b2*ka + 420*a1*b2*kc + 77*a2**2*ka + 77*a2*b1*ka - 77*b1*b2*ka - 77*b2**2*ka) + 6*df(x1,t,2)*df(x1,t
)**4*x1**7*x2**5*a1**9*vm*( - 948*a1**3*ka + 19530*a1**2*a2*ka + 9702*a1**2*b1*ka - 10318*a1**2*b2*ka - 119119*a1**2*b2*
kc + 76125*a1*a2**2*ka + 69300*a1*a2*b1*ka + 80850*a1*a2*b2*ka + 6699*a1*b1*b2*ka + 6699*a1*b2**2*ka + 42042*a1*b2**2*kc
 + 60795*a2**3*ka + 41580*a2**2*b1*ka - 51975*a2**2*b2*ka - 62370*a2*b1*b2*ka - 62370*a2*b2**2*ka) + 6006*df(x1,t,2)*df(
x1,t)**4*x1**6*x2**7*a1**11*( - 36*a1**2*ka + 12*a1**2*kc - 76*a1*a2*ka + 372*a1*a2*kc + 24*a1*b1*ka + 64*a1*b2*ka - 360
*a1*b2*kc - 55*a2**2*ka - 55*a2*b1*ka + 55*b1*b2*ka + 55*b2**2*ka) + 42*df(x1,t,2)*df(x1,t)**4*x1**6*x2**6*a1**9*vm*(392
*a1**3*ka - 3510*a1**2*a2*ka - 1848*a1**2*b1*ka + 264*a1**2*b2*ka + 18018*a1**2*b2*kc - 11265*a1*a2**2*ka - 9240*a1*a2*
b1*ka - 8800*a1*a2*b2*ka - 495*a1*b1*b2*ka - 495*a1*b2**2*ka - 5005*a1*b2**2*kc - 5790*a2**3*ka - 3960*a2**2*b1*ka + 
4950*a2**2*b2*ka + 5940*a2*b1*b2*ka + 5940*a2*b2**2*ka) + 15015*df(x1,t,2)*df(x1,t)**4*x1**5*x2**8*a1**11*(12*a1**2*ka -
 6*a1**2*kc + 20*a1*a2*ka - 93*a1*a2*kc - 6*a1*b1*ka - 17*a1*b2*ka + 90*a1*b2*kc + 11*a2**2*ka + 11*a2*b1*ka - 11*b1*b2*
ka - 11*b2**2*ka) + 30*df(x1,t,2)*df(x1,t)**4*x1**5*x2**7*a1**9*vm*( - 816*a1**3*ka + 4482*a1**2*a2*ka + 2376*a1**2*b1*
ka + 1056*a1**2*b2*ka - 19019*a1**2*b2*kc + 10774*a1*a2**2*ka + 8184*a1*a2*b1*ka + 6380*a1*a2*b2*ka + 154*a1*b1*b2*ka + 
154*a1*b2**2*ka + 4004*a1*b2**2*kc + 3474*a2**3*ka + 2376*a2**2*b1*ka - 2970*a2**2*b2*ka - 3564*a2*b1*b2*ka - 3564*a2*b2
**2*ka) + 5005*df(x1,t,2)*df(x1,t)**4*x1**4*x2**9*a1**11*( - 22*a1**2*ka + 14*a1**2*kc - 28*a1*a2*ka + 124*a1*a2*kc + 8*
a1*b1*ka + 24*a1*b2*ka - 120*a1*b2*kc - 11*a2**2*ka - 11*a2*b1*ka + 11*b1*b2*ka + 11*b2**2*ka) + 15*df(x1,t,2)*df(x1,t)
**4*x1**4*x2**8*a1**9*vm*(1530*a1**3*ka - 5706*a1**2*a2*ka - 2970*a1**2*b1*ka - 2486*a1**2*b2*ka + 20020*a1**2*b2*kc - 
9402*a1*a2**2*ka - 6732*a1*a2*b1*ka - 4290*a1*a2*b2*ka + 66*a1*b1*b2*ka + 66*a1*b2**2*ka - 3003*a1*b2**2*kc - 1737*a2**3
*ka - 1188*a2**2*b1*ka + 1485*a2**2*b2*ka + 1782*a2*b1*b2*ka + 1782*a2*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)**4*x1**3*x2
**10*a1**11*(48*a1**2*ka - 36*a1**2*kc + 44*a1*a2*ka - 186*a1*a2*kc - 12*a1*b1*ka - 38*a1*b2*ka + 180*a1*b2*kc + 11*a2**
2*ka + 11*a2*b1*ka - 11*b1*b2*ka - 11*b2**2*ka) + 5*df(x1,t,2)*df(x1,t)**4*x1**3*x2**9*a1**9*vm*( - 2820*a1**3*ka + 7182
*a1**2*a2*ka + 3630*a1**2*b1*ka + 4026*a1**2*b2*ka - 21021*a1**2*b2*kc + 7149*a1*a2**2*ka + 4884*a1*a2*b1*ka + 2530*a1*
a2*b2*ka - 165*a1*b1*b2*ka - 165*a1*b2**2*ka + 2002*a1*b2**2*kc + 579*a2**3*ka + 396*a2**2*b1*ka - 495*a2**2*b2*ka - 594
*a2*b1*b2*ka - 594*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)**4*x1**2*x2**11*a1**11*( - 156*a1**2*ka + 132*a1**2*kc - 92*a1*
a2*ka + 372*a1*a2*kc + 24*a1*b1*ka + 80*a1*b2*ka - 360*a1*b2*kc - 11*a2**2*ka - 11*a2*b1*ka + 11*b1*b2*ka + 11*b2**2*ka)
 + 11*df(x1,t,2)*df(x1,t)**4*x1**2*x2**10*a1**10*vm*(504*a1**2*ka - 810*a1*a2*ka - 396*a1*b1*ka - 516*a1*b2*ka + 2002*a1
*b2*kc - 365*a2**2*ka - 240*a2*b1*ka - 100*a2*b2*ka + 13*b1*b2*ka + 13*b2**2*ka - 91*b2**2*kc) + 91*df(x1,t,2)*df(x1,t)
**4*x1*x2**12*a1**12*(28*a1*ka - 26*a1*kc + 8*a2*ka - 31*a2*kc - 2*b1*ka - 7*b2*ka + 30*b2*kc) + df(x1,t,2)*df(x1,t)**4*
x1*x2**11*a1**11*vm*( - 1272*a1*ka + 990*a2*ka + 468*b1*ka + 676*b2*ka - 2093*b2*kc) + 210*df(x1,t,2)*df(x1,t)**4*x2**13
*a1**13*( - ka + kc) + 130*df(x1,t,2)*df(x1,t)**4*x2**12*a1**12*ka*vm + df(x1,t,2)*df(x1,t)**3*x1**14*a1**12*(2*a1**2*ka
 + 26*a1**2*kc + 91*a1*a2*ka - 819*a1*a2*kc - 28*a1*b1*ka - 42*a1*b2*ka + 770*a1*b2*kc + 364*a2**2*ka + 364*a2*b1*ka - 
364*b1*b2*ka - 364*b2**2*ka) + 7*df(x1,t,2)*df(x1,t)**3*x1**13*x2*a1**12*( - 8*a1**2*ka - 44*a1**2*kc - 182*a1*a2*ka + 
1521*a1*a2*kc + 52*a1*b1*ka + 91*a1*b2*ka - 1430*a1*b2*kc - 624*a2**2*ka - 624*a2*b1*ka + 624*b1*b2*ka + 624*b2**2*ka) +
 df(x1,t,2)*df(x1,t)**3*x1**13*a1**10*vm*( - 84*a1**2*a2*ka + 121*a1**2*b2*ka + 273*a1**2*b2*kc + 292*a1*a2**2*ka - 132*
a1*a2*b1*ka - 880*a1*a2*b2*ka - 162*a1*b1*b2*ka - 162*a1*b2**2*ka - 364*a1*b2**2*kc - 1780*a2**3*ka - 990*a2**2*b1*ka + 
1430*a2**2*b2*ka + 1320*a2*b1*b2*ka + 1320*a2*b2**2*ka) + 546*df(x1,t,2)*df(x1,t)**3*x1**12*x2**2*a1**12*(a1**2*ka + 3*
a1**2*kc + 15*a1*a2*ka - 117*a1*a2*kc - 4*a1*b1*ka - 8*a1*b2*ka + 110*a1*b2*kc + 44*a2**2*ka + 44*a2*b1*ka - 44*b1*b2*ka
 - 44*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**3*x1**12*x2*a1**10*vm*(4*a1**3*ka + 450*a1**2*a2*ka + 6*a1**2*b1*ka - 726*a1**2
*b2*ka - 1820*a1**2*b2*kc - 833*a1*a2**2*ka + 1056*a1*a2*b1*ka + 4708*a1*a2*b2*ka + 836*a1*b1*b2*ka + 836*a1*b2**2*ka + 
2002*a1*b2**2*kc + 8900*a2**3*ka + 4950*a2**2*b1*ka - 7150*a2**2*b2*ka - 6600*a2*b1*b2*ka - 6600*a2*b2**2*ka) + 182*df(
x1,t,2)*df(x1,t)**3*x1**11*x2**3*a1**12*( - 16*a1**2*ka - 28*a1**2*kc - 176*a1*a2*ka + 1287*a1*a2*kc + 44*a1*b1*ka + 99*
a1*b2*ka - 1210*a1*b2*kc - 440*a2**2*ka - 440*a2*b1*ka + 440*b1*b2*ka + 440*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**3*x1**11*
x2**2*a1**10*vm*( - 42*a1**3*ka - 2241*a1**2*a2*ka - 99*a1**2*b1*ka + 3861*a1**2*b2*ka + 11011*a1**2*b2*kc + 300*a1*a2**
2*ka - 6930*a1*a2*b1*ka - 22880*a1*a2*b2*ka - 3905*a1*b1*b2*ka - 3905*a1*b2**2*ka - 10010*a1*b2**2*kc - 40050*a2**3*ka -
 22275*a2**2*b1*ka + 32175*a2**2*b2*ka + 29700*a2*b1*b2*ka + 29700*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)**3*x1**10*x2
**4*a1**12*(2*a1**2*ka + 2*a1**2*kc + 17*a1*a2*ka - 117*a1*a2*kc - 4*a1*b1*ka - 10*a1*b2*ka + 110*a1*b2*kc + 36*a2**2*ka
 + 36*a2*b1*ka - 36*b1*b2*ka - 36*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**3*x1**10*x2**3*a1**10*vm*(188*a1**3*ka + 6900*a1**2
*a2*ka + 660*a1**2*b1*ka - 11990*a1**2*b2*ka - 40040*a1**2*b2*kc + 10695*a1*a2**2*ka + 25740*a1*a2*b1*ka + 66660*a1*a2*
b2*ka + 10890*a1*b1*b2*ka + 10890*a1*b2**2*ka + 30030*a1*b2**2*kc + 106800*a2**3*ka + 59400*a2**2*b1*ka - 85800*a2**2*b2
*ka - 79200*a2*b1*b2*ka - 79200*a2*b2**2*ka) + 3003*df(x1,t,2)*df(x1,t)**3*x1**9*x2**5*a1**12*( - 8*a1**2*ka - 4*a1**2*
kc - 54*a1*a2*ka + 351*a1*a2*kc + 12*a1*b1*ka + 33*a1*b2*ka - 330*a1*b2*kc - 96*a2**2*ka - 96*a2*b1*ka + 96*b1*b2*ka + 
96*b2**2*ka) + 15*df(x1,t,2)*df(x1,t)**3*x1**9*x2**4*a1**10*vm*( - 60*a1**3*ka - 1962*a1**2*a2*ka - 330*a1**2*b1*ka + 
3201*a1**2*b2*ka + 13013*a1**2*b2*kc - 5944*a1*a2**2*ka - 8184*a1*a2*b1*ka - 17248*a1*a2*b2*ka - 2684*a1*b1*b2*ka - 2684
*a1*b2**2*ka - 8008*a1*b2**2*kc - 24920*a2**3*ka - 13860*a2**2*b1*ka + 20020*a2**2*b2*ka + 18480*a2*b1*b2*ka + 18480*a2*
b2**2*ka) + 6006*df(x1,t,2)*df(x1,t)**3*x1**8*x2**6*a1**12*(7*a1**2*ka + a1**2*kc + 38*a1*a2*ka - 234*a1*a2*kc - 8*a1*b1
*ka - 24*a1*b2*ka + 220*a1*b2*kc + 56*a2**2*ka + 56*a2*b1*ka - 56*b1*b2*ka - 56*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**3*x1
**8*x2**5*a1**10*vm*(90*a1**3*ka + 3834*a1**2*a2*ka + 990*a1**2*b1*ka - 5346*a1**2*b2*ka - 28028*a1**2*b2*kc + 15813*a1*
a2**2*ka + 16632*a1*a2*b1*ka + 29260*a1*a2*b2*ka + 4312*a1*b1*b2*ka + 4312*a1*b2**2*ka + 14014*a1*b2**2*kc + 37380*a2**3
*ka + 20790*a2**2*b1*ka - 30030*a2**2*b2*ka - 27720*a2*b1*b2*ka - 27720*a2*b2**2*ka) + 1716*df(x1,t,2)*df(x1,t)**3*x1**7
*x2**7*a1**12*( - 32*a1**2*ka + 4*a1**2*kc - 140*a1*a2*ka + 819*a1*a2*kc + 28*a1*b1*ka + 91*a1*b2*ka - 770*a1*b2*kc - 
168*a2**2*ka - 168*a2*b1*ka + 168*b1*b2*ka + 168*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**3*x1**7*x2**6*a1**10*vm*(2*a1**3*ka
 - 4515*a1**2*a2*ka - 1617*a1**2*b1*ka + 4697*a1**2*b2*ka + 35035*a1**2*b2*kc - 21224*a1*a2**2*ka - 18942*a1*a2*b1*ka - 
28336*a1*a2*b2*ka - 3927*a1*b1*b2*ka - 3927*a1*b2**2*ka - 14014*a1*b2**2*kc - 31150*a2**3*ka - 17325*a2**2*b1*ka + 25025
*a2**2*b2*ka + 23100*a2*b1*b2*ka + 23100*a2*b2**2*ka) + 9009*df(x1,t,2)*df(x1,t)**3*x1**6*x2**8*a1**12*(6*a1**2*ka - 2*
a1**2*kc + 21*a1*a2*ka - 117*a1*a2*kc - 4*a1*b1*ka - 14*a1*b2*ka + 110*a1*b2*kc + 20*a2**2*ka + 20*a2*b1*ka - 20*b1*b2*
ka - 20*b2**2*ka) + 12*df(x1,t,2)*df(x1,t)**3*x1**6*x2**7*a1**10*vm*( - 196*a1**3*ka + 4032*a1**2*a2*ka + 1848*a1**2*b1*
ka - 2442*a1**2*b2*ka - 32032*a1**2*b2*kc + 19025*a1*a2**2*ka + 15180*a1*a2*b1*ka + 19580*a1*a2*b2*ka + 2530*a1*b1*b2*ka
 + 2530*a1*b2**2*ka + 10010*a1*b2**2*kc + 17800*a2**3*ka + 9900*a2**2*b1*ka - 14300*a2**2*b2*ka - 13200*a2*b1*b2*ka - 
13200*a2*b2**2*ka) + 5005*df(x1,t,2)*df(x1,t)**3*x1**5*x2**9*a1**12*( - 8*a1**2*ka + 4*a1**2*kc - 22*a1*a2*ka + 117*a1*
a2*kc + 4*a1*b1*ka + 15*a1*b2*ka - 110*a1*b2*kc - 16*a2**2*ka - 16*a2*b1*ka + 16*b1*b2*ka + 16*b2**2*ka) + 3*df(x1,t,2)*
df(x1,t)**3*x1**5*x2**8*a1**10*vm*(1416*a1**3*ka - 10800*a1**2*a2*ka - 5940*a1**2*b1*ka + 1485*a1**2*b2*ka + 85085*a1**2
*b2*kc - 45780*a1*a2**2*ka - 33660*a1*a2*b1*ka - 37840*a1*a2*b2*ka - 4510*a1*b1*b2*ka - 4510*a1*b2**2*ka - 20020*a1*b2**
2*kc - 26700*a2**3*ka - 14850*a2**2*b1*ka + 21450*a2**2*b2*ka + 19800*a2*b1*b2*ka + 19800*a2*b2**2*ka) + 2002*df(x1,t,2)
*df(x1,t)**3*x1**4*x2**10*a1**12*(11*a1**2*ka - 7*a1**2*kc + 23*a1*a2*ka - 117*a1*a2*kc - 4*a1*b1*ka - 16*a1*b2*ka + 110
*a1*b2*kc + 12*a2**2*ka + 12*a2*b1*ka - 12*b1*b2*ka - 12*b2**2*ka) + 10*df(x1,t,2)*df(x1,t)**3*x1**4*x2**9*a1**10*vm*( -
 420*a1**3*ka + 1578*a1**2*a2*ka + 990*a1**2*b1*ka + 506*a1**2*b2*ka - 12012*a1**2*b2*kc + 5351*a1*a2**2*ka + 3696*a1*a2
*b1*ka + 3652*a1*a2*b2*ka + 396*a1*b1*b2*ka + 396*a1*b2**2*ka + 2002*a1*b2**2*kc + 1780*a2**3*ka + 990*a2**2*b1*ka - 
1430*a2**2*b2*ka - 1320*a2*b1*b2*ka - 1320*a2*b2**2*ka) + 546*df(x1,t,2)*df(x1,t)**3*x1**3*x2**11*a1**12*( - 16*a1**2*ka
 + 12*a1**2*kc - 24*a1*a2*ka + 117*a1*a2*kc + 4*a1*b1*ka + 17*a1*b2*ka - 110*a1*b2*kc - 8*a2**2*ka - 8*a2*b1*ka + 8*b1*
b2*ka + 8*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**3*x1**3*x2**10*a1**10*vm*(1310*a1**3*ka - 2637*a1**2*a2*ka - 1815*a1**2*b1*
ka - 1947*a1**2*b2*ka + 19019*a1**2*b2*kc - 6124*a1*a2**2*ka - 4026*a1*a2*b1*ka - 3520*a1*a2*b2*ka - 341*a1*b1*b2*ka - 
341*a1*b2**2*ka - 2002*a1*b2**2*kc - 890*a2**3*ka - 495*a2**2*b1*ka + 715*a2**2*b2*ka + 660*a2*b1*b2*ka + 660*a2*b2**2*
ka) + 91*df(x1,t,2)*df(x1,t)**3*x1**2*x2**12*a1**12*(26*a1**2*ka - 22*a1**2*kc + 25*a1*a2*ka - 117*a1*a2*kc - 4*a1*b1*ka
 - 18*a1*b2*ka + 110*a1*b2*kc + 4*a2**2*ka + 4*a2*b1*ka - 4*b1*b2*ka - 4*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**3*x1**2*x2**
11*a1**11*vm*( - 516*a1**2*ka + 540*a1*a2*ka + 396*a1*b1*ka + 594*a1*b2*ka - 3640*a1*b2*kc + 627*a2**2*ka + 396*a2*b1*ka
 + 308*a2*b2*ka + 26*b1*b2*ka + 26*b2**2*ka + 182*b2**2*kc) + 7*df(x1,t,2)*df(x1,t)**3*x1*x2**13*a1**13*( - 56*a1*ka + 
52*a1*kc - 26*a2*ka + 117*a2*kc + 4*b1*ka + 19*b2*ka - 110*b2*kc) + df(x1,t,2)*df(x1,t)**3*x1*x2**12*a1**12*vm*(236*a1*
ka - 102*a2*ka - 78*b1*ka - 143*b2*ka + 637*b2*kc) + 30*df(x1,t,2)*df(x1,t)**3*x2**14*a1**14*(ka - kc) - 24*df(x1,t,2)*
df(x1,t)**3*x2**13*a1**13*ka*vm + df(x1,t,2)*df(x1,t)**2*x1**15*a1**13*(2*a1**2*kc + 14*a1*a2*ka - 161*a1*a2*kc - 2*a1*
b1*ka - 3*a1*b2*ka + 150*a1*b2*kc + 91*a2**2*ka + 91*a2*b1*ka - 91*b1*b2*ka - 91*b2**2*ka) + df(x1,t,2)*df(x1,t)**2*x1**
14*x2*a1**13*( - 2*a1**2*ka - 26*a1**2*kc - 210*a1*a2*ka + 2254*a1*a2*kc + 28*a1*b1*ka + 56*a1*b2*ka - 2100*a1*b2*kc - 
1183*a2**2*ka - 1183*a2*b1*ka + 1183*b1*b2*ka + 1183*b2**2*ka) + df(x1,t,2)*df(x1,t)**2*x1**14*a1**11*vm*( - 11*a1**2*a2
*ka + 12*a1**2*b2*ka + 42*a1**2*b2*kc + 72*a1*a2**2*ka - 12*a1*a2*b1*ka - 144*a1*a2*b2*ka - 33*a1*b1*b2*ka - 33*a1*b2**2
*ka - 91*a1*b2**2*kc - 706*a2**3*ka - 330*a2**2*b1*ka + 528*a2**2*b2*ka + 396*a2*b1*b2*ka + 396*a2*b2**2*ka) + 7*df(x1,t
,2)*df(x1,t)**2*x1**13*x2**2*a1**13*(4*a1**2*ka + 22*a1**2*kc + 208*a1*a2*ka - 2093*a1*a2*kc - 26*a1*b1*ka - 65*a1*b2*ka
 + 1950*a1*b2*kc + 1014*a2**2*ka + 1014*a2*b1*ka - 1014*b1*b2*ka - 1014*b2**2*ka) + df(x1,t,2)*df(x1,t)**2*x1**13*x2*a1
**11*vm*(157*a1**2*a2*ka - 192*a1**2*b2*ka - 637*a1**2*b2*kc - 594*a1*a2**2*ka + 276*a1*a2*b1*ka + 1800*a1*a2*b2*ka + 
402*a1*b1*b2*ka + 402*a1*b2**2*ka + 1092*a1*b2**2*kc + 7766*a2**3*ka + 3630*a2**2*b1*ka - 5808*a2**2*b2*ka - 4356*a2*b1*
b2*ka - 4356*a2*b2**2*ka) + 182*df(x1,t,2)*df(x1,t)**2*x1**12*x2**3*a1**13*( - a1**2*ka - 3*a1**2*kc - 34*a1*a2*ka + 322
*a1*a2*kc + 4*a1*b1*ka + 12*a1*b2*ka - 300*a1*b2*kc - 143*a2**2*ka - 143*a2*b1*ka + 143*b1*b2*ka + 143*b2**2*ka) + 2*df(
x1,t,2)*df(x1,t)**2*x1**12*x2**2*a1**11*vm*( - a1**3*ka - 495*a1**2*a2*ka - 3*a1**2*b1*ka + 651*a1**2*b2*ka + 2184*a1**2
*b2*kc + 891*a1*a2**2*ka - 1122*a1*a2*b1*ka - 5148*a1*a2*b2*ka - 1122*a1*b1*b2*ka - 1122*a1*b2**2*ka - 3003*a1*b2**2*kc 
- 19415*a2**3*ka - 9075*a2**2*b1*ka + 14520*a2**2*b2*ka + 10890*a2*b1*b2*ka + 10890*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t
)**2*x1**11*x2**4*a1**13*(8*a1**2*ka + 14*a1**2*kc + 198*a1*a2*ka - 1771*a1*a2*kc - 22*a1*b1*ka - 77*a1*b2*ka + 1650*a1*
b2*kc + 715*a2**2*ka + 715*a2*b1*ka - 715*b1*b2*ka - 715*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**2*x1**11*x2**3*a1**11*vm*(10
*a1**3*ka + 1837*a1**2*a2*ka + 33*a1**2*b1*ka - 2541*a1**2*b2*ka - 9009*a1**2*b2*kc - 495*a1*a2**2*ka + 4950*a1*a2*b1*ka
 + 17820*a1*a2*b2*ka + 3795*a1*b1*b2*ka + 3795*a1*b2**2*ka + 10010*a1*b2**2*kc + 58245*a2**3*ka + 27225*a2**2*b1*ka - 
43560*a2**2*b2*ka - 32670*a2*b1*b2*ka - 32670*a2*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)**2*x1**10*x2**5*a1**13*( - 2*a1**2
*ka - 2*a1**2*kc - 38*a1*a2*ka + 322*a1*a2*kc + 4*a1*b1*ka + 16*a1*b2*ka - 300*a1*b2*kc - 117*a2**2*ka - 117*a2*b1*ka + 
117*b1*b2*ka + 117*b2**2*ka) + 11*df(x1,t,2)*df(x1,t)**2*x1**10*x2**4*a1**11*vm*( - 8*a1**3*ka - 815*a1**2*a2*ka - 30*a1
**2*b1*ka + 1170*a1**2*b2*ka + 4550*a1**2*b2*kc - 810*a1*a2**2*ka - 2520*a1*a2*b1*ka - 7560*a1*a2*b2*ka - 1575*a1*b1*b2*
ka - 1575*a1*b2**2*ka - 4095*a1*b2**2*kc - 21180*a2**3*ka - 9900*a2**2*b1*ka + 15840*a2**2*b2*ka + 11880*a2*b1*b2*ka + 
11880*a2*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)**2*x1**9*x2**6*a1**13*(4*a1**2*ka + 2*a1**2*kc + 60*a1*a2*ka - 483*a1*a2*
kc - 6*a1*b1*ka - 27*a1*b2*ka + 450*a1*b2*kc + 156*a2**2*ka + 156*a2*b1*ka - 156*b1*b2*ka - 156*b2**2*ka) + 11*df(x1,t,2
)*df(x1,t)**2*x1**9*x2**5*a1**11*vm*(20*a1**3*ka + 1377*a1**2*a2*ka + 90*a1**2*b1*ka - 2034*a1**2*b2*ka - 9009*a1**2*b2*
kc + 2916*a1*a2**2*ka + 4824*a1*a2*b1*ka + 12528*a1*a2*b2*ka + 2556*a1*b1*b2*ka + 2556*a1*b2**2*ka + 6552*a1*b2**2*kc + 
29652*a2**3*ka + 13860*a2**2*b1*ka - 22176*a2**2*b2*ka - 16632*a2*b1*b2*ka - 16632*a2*b2**2*ka) + 858*df(x1,t,2)*df(x1,t
)**2*x1**8*x2**7*a1**13*( - 7*a1**2*ka - a1**2*kc - 84*a1*a2*ka + 644*a1*a2*kc + 8*a1*b1*ka + 40*a1*b2*ka - 600*a1*b2*kc
 - 182*a2**2*ka - 182*a2*b1*ka + 182*b1*b2*ka + 182*b2**2*ka) + 66*df(x1,t,2)*df(x1,t)**2*x1**8*x2**6*a1**11*vm*( - 5*a1
**3*ka - 274*a1**2*a2*ka - 30*a1**2*b1*ka + 414*a1**2*b2*ka + 2184*a1**2*b2*kc - 882*a1*a2**2*ka - 1092*a1*a2*b1*ka - 
2520*a1*a2*b2*ka - 504*a1*b1*b2*ka - 504*a1*b2**2*ka - 1274*a1*b2**2*kc - 4942*a2**3*ka - 2310*a2**2*b1*ka + 3696*a2**2*
b2*ka + 2772*a2*b1*b2*ka + 2772*a2*b2**2*ka) + 429*df(x1,t,2)*df(x1,t)**2*x1**7*x2**8*a1**13*(16*a1**2*ka - 2*a1**2*kc +
 154*a1*a2*ka - 1127*a1*a2*kc - 14*a1*b1*ka - 77*a1*b2*ka + 1050*a1*b2*kc + 273*a2**2*ka + 273*a2*b1*ka - 273*b1*b2*ka -
 273*b2**2*ka) + 132*df(x1,t,2)*df(x1,t)**2*x1**7*x2**7*a1**11*vm*(2*a1**3*ka + 115*a1**2*a2*ka + 21*a1**2*b1*ka - 177*
a1**2*b2*ka - 1183*a1**2*b2*kc + 513*a1*a2**2*ka + 534*a1*a2*b1*ka + 1116*a1*a2*b2*ka + 219*a1*b1*b2*ka + 219*a1*b2**2*
ka + 546*a1*b2**2*kc + 1765*a2**3*ka + 825*a2**2*b1*ka - 1320*a2**2*b2*ka - 990*a2*b1*b2*ka - 990*a2*b2**2*ka) + 1001*df
(x1,t,2)*df(x1,t)**2*x1**6*x2**9*a1**13*( - 6*a1**2*ka + 2*a1**2*kc - 46*a1*a2*ka + 322*a1*a2*kc + 4*a1*b1*ka + 24*a1*b2
*ka - 300*a1*b2*kc - 65*a2**2*ka - 65*a2*b1*ka + 65*b1*b2*ka + 65*b2**2*ka) + 33*df(x1,t,2)*df(x1,t)**2*x1**6*x2**8*a1**
11*vm*( - 261*a1**2*a2*ka - 84*a1**2*b1*ka + 408*a1**2*b2*ka + 3822*a1**2*b2*kc - 1620*a1*a2**2*ka - 1500*a1*a2*b1*ka - 
2880*a1*a2*b2*ka - 555*a1*b1*b2*ka - 555*a1*b2**2*ka - 1365*a1*b2**2*kc - 3530*a2**3*ka - 1650*a2**2*b1*ka + 2640*a2**2*
b2*ka + 1980*a2*b1*b2*ka + 1980*a2*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)**2*x1**5*x2**10*a1**13*(4*a1**2*ka - 2*a1**2*kc 
+ 24*a1*a2*ka - 161*a1*a2*kc - 2*a1*b1*ka - 13*a1*b2*ka + 150*a1*b2*kc + 26*a2**2*ka + 26*a2*b1*ka - 26*b1*b2*ka - 26*b2
**2*ka) + 11*df(x1,t,2)*df(x1,t)**2*x1**5*x2**9*a1**11*vm*( - 24*a1**3*ka + 265*a1**2*a2*ka + 180*a1**2*b1*ka - 420*a1**
2*b2*ka - 6825*a1**2*b2*kc + 2610*a1*a2**2*ka + 2220*a1*a2*b1*ka + 3960*a1*a2*b2*ka + 750*a1*b1*b2*ka + 750*a1*b2**2*ka 
+ 1820*a1*b2**2*kc + 3530*a2**3*ka + 1650*a2**2*b1*ka - 2640*a2**2*b2*ka - 1980*a2*b1*b2*ka - 1980*a2*b2**2*ka) + 182*df
(x1,t,2)*df(x1,t)**2*x1**4*x2**11*a1**13*( - 11*a1**2*ka + 7*a1**2*kc - 50*a1*a2*ka + 322*a1*a2*kc + 4*a1*b1*ka + 28*a1*
b2*ka - 300*a1*b2*kc - 39*a2**2*ka - 39*a2*b1*ka + 39*b1*b2*ka + 39*b2**2*ka) + 22*df(x1,t,2)*df(x1,t)**2*x1**4*x2**10*
a1**11*vm*(15*a1**3*ka - 13*a1**2*a2*ka - 45*a1**2*b1*ka + 21*a1**2*b2*ka + 1456*a1**2*b2*kc - 459*a1*a2**2*ka - 366*a1*
a2*b1*ka - 612*a1*a2*b2*ka - 114*a1*b1*b2*ka - 114*a1*b2**2*ka - 273*a1*b2**2*kc - 353*a2**3*ka - 165*a2**2*b1*ka + 264*
a2**2*b2*ka + 198*a2*b1*b2*ka + 198*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)**2*x1**3*x2**12*a1**13*(8*a1**2*ka - 6*a1**2*
kc + 26*a1*a2*ka - 161*a1*a2*kc - 2*a1*b1*ka - 15*a1*b2*ka + 150*a1*b2*kc + 13*a2**2*ka + 13*a2*b1*ka - 13*b1*b2*ka - 13
*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)**2*x1**3*x2**11*a1**11*vm*( - 110*a1**3*ka - 99*a1**2*a2*ka + 165*a1**2*b1*ka + 159*
a1**2*b2*ka - 4641*a1**2*b2*kc + 1053*a1*a2**2*ka + 798*a1*a2*b1*ka + 1260*a1*a2*b2*ka + 231*a1*b1*b2*ka + 231*a1*b2**2*
ka + 546*a1*b2**2*kc + 353*a2**3*ka + 165*a2**2*b1*ka - 264*a2**2*b2*ka - 198*a2*b1*b2*ka - 198*a2*b2**2*ka) + 7*df(x1,t
,2)*df(x1,t)**2*x1**2*x2**13*a1**13*( - 26*a1**2*ka + 22*a1**2*kc - 54*a1*a2*ka + 322*a1*a2*kc + 4*a1*b1*ka + 32*a1*b2*
ka - 300*a1*b2*kc - 13*a2**2*ka - 13*a2*b1*ka + 13*b1*b2*ka + 13*b2**2*ka) + df(x1,t,2)*df(x1,t)**2*x1**2*x2**12*a1**12*
vm*(88*a1**2*ka + 85*a1*a2*ka - 66*a1*b1*ka - 138*a1*b2*ka + 1638*a1*b2*kc - 198*a2**2*ka - 144*a2*b1*ka - 216*a2*b2*ka 
- 39*b1*b2*ka - 39*b2**2*ka - 91*b2**2*kc) + df(x1,t,2)*df(x1,t)**2*x1*x2**14*a1**14*(28*a1*ka - 26*a1*kc + 28*a2*ka - 
161*a2*kc - 2*b1*ka - 17*b2*ka + 150*b2*kc) + df(x1,t,2)*df(x1,t)**2*x1*x2**13*a1**13*vm*( - 20*a1*ka - 11*a2*ka + 6*b1*
ka + 18*b2*ka - 133*b2*kc) + 2*df(x1,t,2)*df(x1,t)**2*x2**15*a1**15*( - ka + kc) + 2*df(x1,t,2)*df(x1,t)**2*x2**14*a1**
14*ka*vm + df(x1,t,2)*df(x1,t)*x1**16*a1**14*(a1*a2*ka - 19*a1*a2*kc + 18*a1*b2*kc + 14*a2**2*ka + 14*a2*b1*ka - 14*b1*
b2*ka - 14*b2**2*ka) + df(x1,t,2)*df(x1,t)*x1**15*x2*a1**14*( - 16*a1*a2*ka + 285*a1*a2*kc + a1*b2*ka - 270*a1*b2*kc - 
196*a2**2*ka - 196*a2*b1*ka + 196*b1*b2*ka + 196*b2**2*ka) + df(x1,t,2)*df(x1,t)*x1**15*a1**12*vm*(3*a1**2*b2*kc - 2*a1*
a2*b2*ka - 3*a1*b1*b2*ka - 3*a1*b2**2*ka - 14*a1*b2**2*kc - 164*a2**3*ka - 66*a2**2*b1*ka + 114*a2**2*b2*ka + 72*a2*b1*
b2*ka + 72*a2*b2**2*ka) + 7*df(x1,t,2)*df(x1,t)*x1**14*x2**2*a1**14*(17*a1*a2*ka - 285*a1*a2*kc - 2*a1*b2*ka + 270*a1*b2
*kc + 182*a2**2*ka + 182*a2*b1*ka - 182*b1*b2*ka - 182*b2**2*ka) + df(x1,t,2)*df(x1,t)*x1**14*x2*a1**12*vm*(6*a1**2*a2*
ka - 6*a1**2*b2*ka - 56*a1**2*b2*kc + a1*a2**2*ka + 12*a1*a2*b1*ka + 68*a1*a2*b2*ka + 46*a1*b1*b2*ka + 46*a1*b2**2*ka + 
182*a1*b2**2*kc + 1968*a2**3*ka + 792*a2**2*b1*ka - 1368*a2**2*b2*ka - 864*a2*b1*b2*ka - 864*a2*b2**2*ka) + 91*df(x1,t,2
)*df(x1,t)*x1**13*x2**3*a1**14*( - 6*a1*a2*ka + 95*a1*a2*kc + a1*b2*ka - 90*a1*b2*kc - 56*a2**2*ka - 56*a2*b1*ka + 56*b1
*b2*ka + 56*b2**2*ka) + df(x1,t,2)*df(x1,t)*x1**13*x2**2*a1**12*vm*( - 69*a1**2*a2*ka + 71*a1**2*b2*ka + 455*a1**2*b2*kc
 - 12*a1*a2**2*ka - 144*a1*a2*b1*ka - 660*a1*a2*b2*ka - 318*a1*b1*b2*ka - 318*a1*b2**2*ka - 1092*a1*b2**2*kc - 10824*a2
**3*ka - 4356*a2**2*b1*ka + 7524*a2**2*b2*ka + 4752*a2*b1*b2*ka + 4752*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)*x1**12*x2**
4*a1**14*(19*a1*a2*ka - 285*a1*a2*kc - 4*a1*b2*ka + 270*a1*b2*kc + 154*a2**2*ka + 154*a2*b1*ka - 154*b1*b2*ka - 154*b2**
2*ka) + 2*df(x1,t,2)*df(x1,t)*x1**12*x2**3*a1**12*vm*(180*a1**2*a2*ka - 192*a1**2*b2*ka - 1092*a1**2*b2*kc + 33*a1*a2**2
*ka + 396*a1*a2*b1*ka + 1672*a1*a2*b2*ka + 660*a1*b1*b2*ka + 660*a1*b2**2*ka + 2002*a1*b2**2*kc + 18040*a2**3*ka + 7260*
a2**2*b1*ka - 12540*a2**2*b2*ka - 7920*a2*b1*b2*ka - 7920*a2*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)*x1**11*x2**5*a1**14*( 
- 4*a1*a2*ka + 57*a1*a2*kc + a1*b2*ka - 54*a1*b2*kc - 28*a2**2*ka - 28*a2*b1*ka + 28*b1*b2*ka + 28*b2**2*ka) + 11*df(x1,
t,2)*df(x1,t)*x1**11*x2**4*a1**12*vm*( - 102*a1**2*a2*ka + 114*a1**2*b2*ka + 637*a1**2*b2*kc - 20*a1*a2**2*ka - 240*a1*
a2*b1*ka - 970*a1*a2*b2*ka - 335*a1*b1*b2*ka - 335*a1*b2**2*ka - 910*a1*b2**2*kc - 7380*a2**3*ka - 2970*a2**2*b1*ka + 
5130*a2**2*b2*ka + 3240*a2*b1*b2*ka + 3240*a2*b2**2*ka) + 1001*df(x1,t,2)*df(x1,t)*x1**10*x2**6*a1**14*(7*a1*a2*ka - 95*
a1*a2*kc - 2*a1*b2*ka + 90*a1*b2*kc + 42*a2**2*ka + 42*a2*b1*ka - 42*b1*b2*ka - 42*b2**2*ka) + 11*df(x1,t,2)*df(x1,t)*x1
**10*x2**5*a1**12*vm*(210*a1**2*a2*ka - 250*a1**2*b2*ka - 1456*a1**2*b2*kc + 45*a1*a2**2*ka + 540*a1*a2*b1*ka + 2124*a1*
a2*b2*ka + 666*a1*b1*b2*ka + 666*a1*b2**2*ka + 1638*a1*b2**2*kc + 11808*a2**3*ka + 4752*a2**2*b1*ka - 8208*a2**2*b2*ka -
 5184*a2*b1*b2*ka - 5184*a2*b2**2*ka) + 429*df(x1,t,2)*df(x1,t)*x1**9*x2**7*a1**14*( - 22*a1*a2*ka + 285*a1*a2*kc + 7*a1
*b2*ka - 270*a1*b2*kc - 112*a2**2*ka - 112*a2*b1*ka + 112*b1*b2*ka + 112*b2**2*ka) + 33*df(x1,t,2)*df(x1,t)*x1**9*x2**6*
a1**12*vm*( - 99*a1**2*a2*ka + 129*a1**2*b2*ka + 819*a1**2*b2*kc - 24*a1*a2**2*ka - 288*a1*a2*b1*ka - 1112*a1*a2*b2*ka -
 324*a1*b1*b2*ka - 324*a1*b2**2*ka - 728*a1*b2**2*kc - 4592*a2**3*ka - 1848*a2**2*b1*ka + 3192*a2**2*b2*ka + 2016*a2*b1*
b2*ka + 2016*a2*b2**2*ka) + 429*df(x1,t,2)*df(x1,t)*x1**8*x2**8*a1**14*(23*a1*a2*ka - 285*a1*a2*kc - 8*a1*b2*ka + 270*a1
*b2*kc + 98*a2**2*ka + 98*a2*b1*ka - 98*b1*b2*ka - 98*b2**2*ka) + 132*df(x1,t,2)*df(x1,t)*x1**8*x2**7*a1**12*vm*(24*a1**
2*a2*ka - 36*a1**2*b2*ka - 260*a1**2*b2*kc + 7*a1*a2**2*ka + 84*a1*a2*b1*ka + 320*a1*a2*b2*ka + 88*a1*b1*b2*ka + 88*a1*
b2**2*ka + 182*a1*b2**2*kc + 984*a2**3*ka + 396*a2**2*b1*ka - 684*a2**2*b2*ka - 432*a2*b1*b2*ka - 432*a2*b2**2*ka) + 
1001*df(x1,t,2)*df(x1,t)*x1**7*x2**9*a1**14*( - 8*a1*a2*ka + 95*a1*a2*kc + 3*a1*b2*ka - 90*a1*b2*kc - 28*a2**2*ka - 28*
a2*b1*ka + 28*b1*b2*ka + 28*b2**2*ka) + 33*df(x1,t,2)*df(x1,t)*x1**7*x2**8*a1**12*vm*( - 60*a1**2*a2*ka + 116*a1**2*b2*
ka + 1001*a1**2*b2*kc - 24*a1*a2**2*ka - 288*a1*a2*b1*ka - 1086*a1*a2*b2*ka - 285*a1*b1*b2*ka - 285*a1*b2**2*ka - 546*a1
*b2**2*kc - 2460*a2**3*ka - 990*a2**2*b1*ka + 1710*a2**2*b2*ka + 1080*a2*b1*b2*ka + 1080*a2*b2**2*ka) + 1001*df(x1,t,2)*
df(x1,t)*x1**6*x2**10*a1**14*(5*a1*a2*ka - 57*a1*a2*kc - 2*a1*b2*ka + 54*a1*b2*kc + 14*a2**2*ka + 14*a2*b1*ka - 14*b1*b2
*ka - 14*b2**2*ka) + 11*df(x1,t,2)*df(x1,t)*x1**6*x2**9*a1**12*vm*(54*a1**2*a2*ka - 198*a1**2*b2*ka - 2184*a1**2*b2*kc +
 45*a1*a2**2*ka + 540*a1*a2*b1*ka + 2020*a1*a2*b2*ka + 510*a1*b1*b2*ka + 510*a1*b2**2*ka + 910*a1*b2**2*kc + 3280*a2**3*
ka + 1320*a2**2*b1*ka - 2280*a2**2*b2*ka - 1440*a2*b1*b2*ka - 1440*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)*x1**5*x2**11*a1
**14*( - 26*a1*a2*ka + 285*a1*a2*kc + 11*a1*b2*ka - 270*a1*b2*kc - 56*a2**2*ka - 56*a2*b1*ka + 56*b1*b2*ka + 56*b2**2*ka
) + 11*df(x1,t,2)*df(x1,t)*x1**5*x2**10*a1**12*vm*(15*a1**2*a2*ka + 75*a1**2*b2*ka + 1183*a1**2*b2*kc - 20*a1*a2**2*ka -
 240*a1*a2*b1*ka - 892*a1*a2*b2*ka - 218*a1*b1*b2*ka - 218*a1*b2**2*ka - 364*a1*b2**2*kc - 984*a2**3*ka - 396*a2**2*b1*
ka + 684*a2**2*b2*ka + 432*a2*b1*b2*ka + 432*a2*b2**2*ka) + 91*df(x1,t,2)*df(x1,t)*x1**4*x2**12*a1**14*(9*a1*a2*ka - 95*
a1*a2*kc - 4*a1*b2*ka + 90*a1*b2*kc + 14*a2**2*ka + 14*a2*b1*ka - 14*b1*b2*ka - 14*b2**2*ka) + 2*df(x1,t,2)*df(x1,t)*x1
**4*x2**11*a1**12*vm*( - 132*a1**2*a2*ka - 88*a1**2*b2*ka - 2548*a1**2*b2*kc + 33*a1*a2**2*ka + 396*a1*a2*b1*ka + 1464*
a1*a2*b2*ka + 348*a1*b1*b2*ka + 348*a1*b2**2*ka + 546*a1*b2**2*kc + 984*a2**3*ka + 396*a2**2*b1*ka - 684*a2**2*b2*ka - 
432*a2*b1*b2*ka - 432*a2*b2**2*ka) + 7*df(x1,t,2)*df(x1,t)*x1**3*x2**13*a1**14*( - 28*a1*a2*ka + 285*a1*a2*kc + 13*a1*b2
*ka - 270*a1*b2*kc - 28*a2**2*ka - 28*a2*b1*ka + 28*b1*b2*ka + 28*b2**2*ka) + df(x1,t,2)*df(x1,t)*x1**3*x2**12*a1**12*vm
*(126*a1**2*a2*ka + 6*a1**2*b2*ka + 1365*a1**2*b2*kc - 12*a1*a2**2*ka - 144*a1*a2*b1*ka - 530*a1*a2*b2*ka - 123*a1*b1*b2
*ka - 123*a1*b2**2*ka - 182*a1*b2**2*kc - 164*a2**3*ka - 66*a2**2*b1*ka + 114*a2**2*b2*ka + 72*a2*b1*b2*ka + 72*a2*b2**2
*ka) + df(x1,t,2)*df(x1,t)*x1**2*x2**14*a1**14*(29*a1*a2*ka - 285*a1*a2*kc - 14*a1*b2*ka + 270*a1*b2*kc + 14*a2**2*ka + 
14*a2*b1*ka - 14*b1*b2*ka - 14*b2**2*ka) + df(x1,t,2)*df(x1,t)*x1**2*x2**13*a1**13*vm*( - 30*a1*a2*ka + 6*a1*b2*ka - 224
*a1*b2*kc + a2**2*ka + 12*a2*b1*ka + 44*a2*b2*ka + 10*b1*b2*ka + 10*b2**2*ka + 14*b2**2*kc) + df(x1,t,2)*df(x1,t)*x1*x2
**15*a1**15*( - 2*a2*ka + 19*a2*kc + b2*ka - 18*b2*kc) + df(x1,t,2)*df(x1,t)*x1*x2**14*a1**14*vm*(3*a2*ka - b2*ka + 17*
b2*kc) + df(x1,t,2)*x1**17*a1**15*( - a1*a2*kc + a1*b2*kc + a2**2*ka + a2*b1*ka - b1*b2*ka - b2**2*ka) + df(x1,t,2)*x1**
16*x2*a1**15*(16*a1*a2*kc - 16*a1*b2*kc - 15*a2**2*ka - 15*a2*b1*ka + 15*b1*b2*ka + 15*b2**2*ka) + df(x1,t,2)*x1**16*a1
**13*vm*( - 2*a1*a2**2*ka + 2*a1*a2*b2*ka - a1*b2**2*kc - 17*a2**3*ka - 6*a2**2*b1*ka + 11*a2**2*b2*ka + 6*a2*b1*b2*ka +
 6*a2*b2**2*ka) + 15*df(x1,t,2)*x1**15*x2**2*a1**15*( - 8*a1*a2*kc + 8*a1*b2*kc + 7*a2**2*ka + 7*a2*b1*ka - 7*b1*b2*ka -
 7*b2**2*ka) + df(x1,t,2)*x1**15*x2*a1**13*vm*( - a1**2*b2*kc + 23*a1*a2**2*ka - 22*a1*a2*b2*ka + a1*b1*b2*ka + a1*b2**2
*ka + 14*a1*b2**2*kc + 221*a2**3*ka + 78*a2**2*b1*ka - 143*a2**2*b2*ka - 78*a2*b1*b2*ka - 78*a2*b2**2*ka) + 35*df(x1,t,2
)*x1**14*x2**3*a1**15*(16*a1*a2*kc - 16*a1*b2*kc - 13*a2**2*ka - 13*a2*b1*ka + 13*b1*b2*ka + 13*b2**2*ka) + df(x1,t,2)*
x1**14*x2**2*a1**13*vm*(14*a1**2*b2*kc - 117*a1*a2**2*ka + 104*a1*a2*b2*ka - 13*a1*b1*b2*ka - 13*a1*b2**2*ka - 91*a1*b2
**2*kc - 1326*a2**3*ka - 468*a2**2*b1*ka + 858*a2**2*b2*ka + 468*a2*b1*b2*ka + 468*a2*b2**2*ka) + 455*df(x1,t,2)*x1**13*
x2**4*a1**15*( - 4*a1*a2*kc + 4*a1*b2*kc + 3*a2**2*ka + 3*a2*b1*ka - 3*b1*b2*ka - 3*b2**2*ka) + 13*df(x1,t,2)*x1**13*x2
**3*a1**13*vm*( - 7*a1**2*b2*kc + 26*a1*a2**2*ka - 20*a1*a2*b2*ka + 6*a1*b1*b2*ka + 6*a1*b2**2*ka + 28*a1*b2**2*kc + 374
*a2**3*ka + 132*a2**2*b1*ka - 242*a2**2*b2*ka - 132*a2*b1*b2*ka - 132*a2*b2**2*ka) + 273*df(x1,t,2)*x1**12*x2**5*a1**15*
(16*a1*a2*kc - 16*a1*b2*kc - 11*a2**2*ka - 11*a2*b1*ka + 11*b1*b2*ka + 11*b2**2*ka) + 13*df(x1,t,2)*x1**12*x2**4*a1**13*
vm*(28*a1**2*b2*kc - 44*a1*a2**2*ka + 22*a1*a2*b2*ka - 22*a1*b1*b2*ka - 22*a1*b2**2*ka - 77*a1*b2**2*kc - 935*a2**3*ka -
 330*a2**2*b1*ka + 605*a2**2*b2*ka + 330*a2*b1*b2*ka + 330*a2*b2**2*ka) + 1001*df(x1,t,2)*x1**11*x2**6*a1**15*( - 8*a1*
a2*kc + 8*a1*b2*kc + 5*a2**2*ka + 5*a2*b1*ka - 5*b1*b2*ka - 5*b2**2*ka) + 143*df(x1,t,2)*x1**11*x2**5*a1**13*vm*( - 7*a1
**2*b2*kc + 3*a1*a2**2*ka + 2*a1*a2*b2*ka + 5*a1*b1*b2*ka + 5*a1*b2**2*ka + 14*a1*b2**2*kc + 153*a2**3*ka + 54*a2**2*b1*
ka - 99*a2**2*b2*ka - 54*a2*b1*b2*ka - 54*a2*b2**2*ka) + 715*df(x1,t,2)*x1**10*x2**7*a1**15*(16*a1*a2*kc - 16*a1*b2*kc -
 9*a2**2*ka - 9*a2*b1*ka + 9*b1*b2*ka + 9*b2**2*ka) + 143*df(x1,t,2)*x1**10*x2**6*a1**13*vm*(14*a1**2*b2*kc + 3*a1*a2**2
*ka - 12*a1*a2*b2*ka - 9*a1*b1*b2*ka - 9*a1*b2**2*ka - 21*a1*b2**2*kc - 204*a2**3*ka - 72*a2**2*b1*ka + 132*a2**2*b2*ka 
+ 72*a2*b1*b2*ka + 72*a2*b2**2*ka) + 6435*df(x1,t,2)*x1**9*x2**8*a1**15*( - 2*a1*a2*kc + 2*a1*b2*kc + a2**2*ka + a2*b1*
ka - b1*b2*ka - b2**2*ka) + 429*df(x1,t,2)*x1**9*x2**7*a1**13*vm*( - 7*a1**2*b2*kc - 4*a1*a2**2*ka + 8*a1*a2*b2*ka + 4*
a1*b1*b2*ka + 4*a1*b2**2*ka + 8*a1*b2**2*kc + 68*a2**3*ka + 24*a2**2*b1*ka - 44*a2**2*b2*ka - 24*a2*b1*b2*ka - 24*a2*b2
**2*ka) + 715*df(x1,t,2)*x1**8*x2**9*a1**15*(16*a1*a2*kc - 16*a1*b2*kc - 7*a2**2*ka - 7*a2*b1*ka + 7*b1*b2*ka + 7*b2**2*
ka) + 429*df(x1,t,2)*x1**8*x2**8*a1**13*vm*(8*a1**2*b2*kc + 6*a1*a2**2*ka - 10*a1*a2*b2*ka - 4*a1*b1*b2*ka - 4*a1*b2**2*
ka - 7*a1*b2**2*kc - 51*a2**3*ka - 18*a2**2*b1*ka + 33*a2**2*b2*ka + 18*a2*b1*b2*ka + 18*a2*b2**2*ka) + 1001*df(x1,t,2)*
x1**7*x2**10*a1**15*( - 8*a1*a2*kc + 8*a1*b2*kc + 3*a2**2*ka + 3*a2*b1*ka - 3*b1*b2*ka - 3*b2**2*ka) + 143*df(x1,t,2)*x1
**7*x2**9*a1**13*vm*( - 21*a1**2*b2*kc - 17*a1*a2**2*ka + 26*a1*a2*b2*ka + 9*a1*b1*b2*ka + 9*a1*b2**2*ka + 14*a1*b2**2*
kc + 85*a2**3*ka + 30*a2**2*b1*ka - 55*a2**2*b2*ka - 30*a2*b1*b2*ka - 30*a2*b2**2*ka) + 273*df(x1,t,2)*x1**6*x2**11*a1**
15*(16*a1*a2*kc - 16*a1*b2*kc - 5*a2**2*ka - 5*a2*b1*ka + 5*b1*b2*ka + 5*b2**2*ka) + 143*df(x1,t,2)*x1**6*x2**10*a1**13*
vm*(14*a1**2*b2*kc + 11*a1*a2**2*ka - 16*a1*a2*b2*ka - 5*a1*b1*b2*ka - 5*a1*b2**2*ka - 7*a1*b2**2*kc - 34*a2**3*ka - 12*
a2**2*b1*ka + 22*a2**2*b2*ka + 12*a2*b1*b2*ka + 12*a2*b2**2*ka) + 455*df(x1,t,2)*x1**5*x2**12*a1**15*( - 4*a1*a2*kc + 4*
a1*b2*kc + a2**2*ka + a2*b1*ka - b1*b2*ka - b2**2*ka) + 13*df(x1,t,2)*x1**5*x2**11*a1**13*vm*( - 77*a1**2*b2*kc - 54*a1*
a2**2*ka + 76*a1*a2*b2*ka + 22*a1*b1*b2*ka + 22*a1*b2**2*ka + 28*a1*b2**2*kc + 102*a2**3*ka + 36*a2**2*b1*ka - 66*a2**2*
b2*ka - 36*a2*b1*b2*ka - 36*a2*b2**2*ka) + 35*df(x1,t,2)*x1**4*x2**13*a1**15*(16*a1*a2*kc - 16*a1*b2*kc - 3*a2**2*ka - 3
*a2*b1*ka + 3*b1*b2*ka + 3*b2**2*ka) + 13*df(x1,t,2)*x1**4*x2**12*a1**13*vm*(28*a1**2*b2*kc + 16*a1*a2**2*ka - 22*a1*a2*
b2*ka - 6*a1*b1*b2*ka - 6*a1*b2**2*ka - 7*a1*b2**2*kc - 17*a2**3*ka - 6*a2**2*b1*ka + 11*a2**2*b2*ka + 6*a2*b1*b2*ka + 6
*a2*b2**2*ka) + 15*df(x1,t,2)*x1**3*x2**14*a1**15*( - 8*a1*a2*kc + 8*a1*b2*kc + a2**2*ka + a2*b1*ka - b1*b2*ka - b2**2*
ka) + df(x1,t,2)*x1**3*x2**13*a1**13*vm*( - 91*a1**2*b2*kc - 37*a1*a2**2*ka + 50*a1*a2*b2*ka + 13*a1*b1*b2*ka + 13*a1*b2
**2*ka + 14*a1*b2**2*kc + 17*a2**3*ka + 6*a2**2*b1*ka - 11*a2**2*b2*ka - 6*a2*b1*b2*ka - 6*a2*b2**2*ka) + df(x1,t,2)*x1
**2*x2**15*a1**15*(16*a1*a2*kc - 16*a1*b2*kc - a2**2*ka - a2*b1*ka + b1*b2*ka + b2**2*ka) + df(x1,t,2)*x1**2*x2**14*a1**
14*vm*(14*a1*b2*kc + 3*a2**2*ka - 4*a2*b2*ka - b1*b2*ka - b2**2*ka - b2**2*kc) + df(x1,t,2)*x1*x2**16*a1**16*kc*( - a2 +
 b2) - df(x1,t,2)*x1*x2**15*a1**15*b2*kc*vm + 2*df(x1,t)**18*( - a1*kc + b1*ka + b2*ka - b2*kc) + df(x1,t)**17*x1*( - 28
*a1**2*kc + 3*a1*a2*kc + 28*a1*b1*ka + 28*a1*b2*ka - 30*a1*b2*kc - b1*b2*ka - b2**2*ka + b2**2*kc) + 2*df(x1,t)**17*x2*
a1*(15*a1*kc - a2*kc - 15*b1*ka - 15*b2*ka + 16*b2*kc) + 2*df(x1,t)**17*vm*( - 2*a1*ka + b1*ka + b2*ka - b2*kc) + df(x1,
t)**16*x1**2*a1*( - 182*a1**2*kc + 41*a1*a2*kc + 182*a1*b1*ka + 182*a1*b2*ka - 210*a1*b2*kc - a2**2*kc + a2*b1*ka + a2*
b2*ka - 2*a2*b2*kc - 14*b1*b2*ka - 14*b2**2*ka + 16*b2**2*kc) + df(x1,t)**16*x1*x2*a1*(392*a1**2*kc - 71*a1*a2*kc - 392*
a1*b1*ka - 392*a1*b2*ka + 450*a1*b2*kc + a2**2*kc - 2*a2*b1*ka - 2*a2*b2*ka + 2*a2*b2*kc + 15*b1*b2*ka + 15*b2**2*ka - 
16*b2**2*kc) + df(x1,t)**16*x1*vm*( - 38*a1**2*ka + 9*a1*a2*ka + 22*a1*b1*ka + 24*a1*b2*ka - 28*a1*b2*kc - b1*b2*ka - b2
**2*ka + b2**2*kc) + 30*df(x1,t)**16*x2**2*a1**2*( - 7*a1*kc + a2*kc + 7*b1*ka + 7*b2*ka - 8*b2*kc) + 2*df(x1,t)**16*x2*
a1*vm*(26*a1*ka - 2*a2*ka - 14*b1*ka - 14*b2*ka + 15*b2*kc) + df(x1,t)**15*x1**3*a1*( - 728*a1**3*kc + 259*a1**2*a2*kc +
 728*a1**2*b1*ka + 728*a1**2*b2*ka - 910*a1**2*b2*kc - 13*a1*a2**2*kc + 14*a1*a2*b1*ka + 14*a1*a2*b2*ka - 30*a1*a2*b2*kc
 - 91*a1*b1*b2*ka - 91*a1*b2**2*ka + 120*a1*b2**2*kc + a2**2*b1*ka + a2**2*b2*ka - a2*b1*b2*ka - a2*b2**2*ka) + df(x1,t)
**15*x1**2*x2*a1*(2366*a1**3*kc - 728*a1**2*a2*kc - 2366*a1**2*b1*ka - 2366*a1**2*b2*ka + 2940*a1**2*b2*kc + 26*a1*a2**2
*kc - 42*a1*a2*b1*ka - 42*a1*a2*b2*ka + 60*a1*a2*b2*kc + 196*a1*b1*b2*ka + 196*a1*b2**2*ka - 240*a1*b2**2*kc - a2**2*b1*
ka - a2**2*b2*ka + a2*b1*b2*ka + a2*b2**2*ka) + df(x1,t)**15*x1**2*a1*vm*( - 160*a1**2*ka + 80*a1*a2*ka + 110*a1*b1*ka +
 126*a1*b2*ka - 182*a1*b2*kc - 6*a2**2*ka + 6*a2*b1*ka - a2*b2*kc - 10*b1*b2*ka - 10*b2**2*ka + 14*b2**2*kc) + df(x1,t)
**15*x1*x2**2*a1**2*( - 2548*a1**2*kc + 679*a1*a2*kc + 2548*a1*b1*ka + 2548*a1*b2*ka - 3150*a1*b2*kc - 13*a2**2*kc + 28*
a2*b1*ka + 28*a2*b2*ka - 30*a2*b2*kc - 105*b1*b2*ka - 105*b2**2*ka + 120*b2**2*kc) + df(x1,t)**15*x1*x2*a1*vm*(456*a1**2
*ka - 141*a1*a2*ka - 286*a1*b1*ka - 312*a1*b2*ka + 392*a1*b2*kc + 5*a2**2*ka - 6*a2*b1*ka - 4*a2*b2*ka + 2*a2*b2*kc + 14
*b1*b2*ka + 14*b2**2*ka - 15*b2**2*kc) + 70*df(x1,t)**15*x2**3*a1**3*(13*a1*kc - 3*a2*kc - 13*b1*ka - 13*b2*ka + 16*b2*
kc) + 2*df(x1,t)**15*x2**2*a1**2*vm*( - 156*a1*ka + 26*a2*ka + 91*b1*ka + 91*b2*ka - 105*b2*kc) + 7*df(x1,t)**14*x1**4*
a1**2*( - 286*a1**3*kc + 143*a1**2*a2*kc + 286*a1**2*b1*ka + 286*a1**2*b2*ka - 390*a1**2*b2*kc - 11*a1*a2**2*kc + 13*a1*
a2*b1*ka + 13*a1*a2*b2*ka - 30*a1*a2*b2*kc - 52*a1*b1*b2*ka - 52*a1*b2**2*ka + 80*a1*b2**2*kc + 2*a2**2*b1*ka + 2*a2**2*
b2*ka - 2*a2*b1*b2*ka - 2*a2*b2**2*ka) + 7*df(x1,t)**14*x1**3*x2*a1**2*(1248*a1**3*kc - 559*a1**2*a2*kc - 1248*a1**2*b1*
ka - 1248*a1**2*b2*ka + 1690*a1**2*b2*kc + 33*a1*a2**2*kc - 52*a1*a2*b1*ka - 52*a1*a2*b2*ka + 90*a1*a2*b2*kc + 169*a1*b1
*b2*ka + 169*a1*b2**2*ka - 240*a1*b2**2*kc - 4*a2**2*b1*ka - 4*a2**2*b2*ka + 4*a2*b1*b2*ka + 4*a2*b2**2*ka) + df(x1,t)**
14*x1**3*a1*vm*( - 390*a1**3*ka + 310*a1**2*a2*ka + 330*a1**2*b1*ka + 374*a1**2*b2*ka - 728*a1**2*b2*kc - 46*a1*a2**2*ka
 + 66*a1*a2*b1*ka + 15*a1*a2*b2*ka - 14*a1*a2*b2*kc - 42*a1*b1*b2*ka - 42*a1*b2**2*ka + 91*a1*b2**2*kc + a2**3*ka + 5*a2
**2*b2*ka - a2**2*b2*kc - 5*a2*b1*b2*ka - 5*a2*b2**2*ka + a2*b2**2*kc) + 7*df(x1,t)**14*x1**2*x2**2*a1**2*( - 2028*a1**3
*kc + 819*a1**2*a2*kc + 2028*a1**2*b1*ka + 2028*a1**2*b2*ka - 2730*a1**2*b2*kc - 33*a1*a2**2*kc + 65*a1*a2*b1*ka + 65*a1
*a2*b2*ka - 90*a1*a2*b2*kc - 182*a1*b1*b2*ka - 182*a1*b2**2*ka + 240*a1*b2**2*kc + 2*a2**2*b1*ka + 2*a2**2*b2*ka - 2*a2*
b1*b2*ka - 2*a2*b2**2*ka) + df(x1,t)**14*x1**2*x2*a1*vm*(1760*a1**3*ka - 984*a1**2*a2*ka - 1320*a1**2*b1*ka - 1512*a1**2
*b2*ka + 2366*a1**2*b2*kc + 97*a1*a2**2*ka - 144*a1*a2*b1*ka - 60*a1*a2*b2*ka + 42*a1*a2*b2*kc + 130*a1*b1*b2*ka + 130*
a1*b2**2*ka - 196*a1*b2**2*kc - a2**3*ka - 4*a2**2*b2*ka + a2**2*b2*kc + 4*a2*b1*b2*ka + 4*a2*b2**2*ka - a2*b2**2*kc) + 
7*df(x1,t)**14*x1*x2**3*a1**3*(1456*a1**2*kc - 533*a1*a2*kc - 1456*a1*b1*ka - 1456*a1*b2*ka + 1950*a1*b2*kc + 11*a2**2*
kc - 26*a2*b1*ka - 26*a2*b2*ka + 30*a2*b2*kc + 65*b1*b2*ka + 65*b2**2*ka - 80*b2**2*kc) + df(x1,t)**14*x1*x2**2*a1**2*vm
*( - 2508*a1**2*ka + 990*a1*a2*ka + 1716*a1*b1*ka + 1872*a1*b2*ka - 2548*a1*b2*kc - 51*a2**2*ka + 78*a2*b1*ka + 52*a2*b2
*ka - 28*a2*b2*kc - 91*b1*b2*ka - 91*b2**2*ka + 105*b2**2*kc) + 910*df(x1,t)**14*x2**4*a1**4*( - 3*a1*kc + a2*kc + 3*b1*
ka + 3*b2*ka - 4*b2*kc) + 26*df(x1,t)**14*x2**3*a1**3*vm*(44*a1*ka - 12*a2*ka - 28*b1*ka - 28*b2*ka + 35*b2*kc) + 91*df(
x1,t)**13*x1**5*a1**3*( - 44*a1**3*kc + 29*a1**2*a2*kc + 44*a1**2*b1*ka + 44*a1**2*b2*ka - 66*a1**2*b2*kc - 3*a1*a2**2*
kc + 4*a1*a2*b1*ka + 4*a1*a2*b2*ka - 10*a1*a2*b2*kc - 11*a1*b1*b2*ka - 11*a1*b2**2*ka + 20*a1*b2**2*kc + a2**2*b1*ka + 
a2**2*b2*ka - a2*b1*b2*ka - a2*b2**2*ka) + 91*df(x1,t)**13*x1**4*x2*a1**3*(242*a1**3*kc - 146*a1**2*a2*kc - 242*a1**2*b1
*ka - 242*a1**2*b2*ka + 360*a1**2*b2*kc + 12*a1*a2**2*kc - 20*a1*a2*b1*ka - 20*a1*a2*b2*ka + 40*a1*a2*b2*kc + 48*a1*b1*
b2*ka + 48*a1*b2**2*ka - 80*a1*b2**2*kc - 3*a2**2*b1*ka - 3*a2**2*b2*ka + 3*a2*b1*b2*ka + 3*a2*b2**2*ka) + df(x1,t)**13*
x1**4*a1*vm*( - 600*a1**4*ka + 680*a1**3*a2*ka + 660*a1**3*b1*ka + 660*a1**3*b2*ka - 2002*a1**3*b2*kc - 144*a1**2*a2**2*
ka + 330*a1**2*a2*b1*ka + 162*a1**2*a2*b2*ka - 91*a1**2*a2*b2*kc - 88*a1**2*b1*b2*ka - 88*a1**2*b2**2*ka + 364*a1**2*b2
**2*kc + 4*a1*a2**3*ka + 6*a1*a2**2*b1*ka + 47*a1*a2**2*b2*ka - 14*a1*a2**2*b2*kc - 59*a1*a2*b1*b2*ka - 59*a1*a2*b2**2*
ka + 14*a1*a2*b2**2*kc - a2**3*b2*ka + a2**2*b1*b2*ka + a2**2*b2**2*ka) + 273*df(x1,t)**13*x1**3*x2**2*a1**3*( - 176*a1
**3*kc + 98*a1**2*a2*kc + 176*a1**2*b1*ka + 176*a1**2*b2*ka - 260*a1**2*b2*kc - 6*a1*a2**2*kc + 12*a1*a2*b1*ka + 12*a1*
a2*b2*ka - 20*a1*a2*b2*kc - 26*a1*b1*b2*ka - 26*a1*b2**2*ka + 40*a1*b2**2*kc + a2**2*b1*ka + a2**2*b2*ka - a2*b1*b2*ka -
 a2*b2**2*ka) + df(x1,t)**13*x1**3*x2*a1*vm*(3900*a1**4*ka - 3210*a1**3*a2*ka - 3630*a1**3*b1*ka - 4114*a1**3*b2*ka + 
8736*a1**3*b2*kc + 498*a1**2*a2**2*ka - 1122*a1**2*a2*b1*ka - 570*a1**2*a2*b2*ka + 364*a1**2*a2*b2*kc + 504*a1**2*b1*b2*
ka + 504*a1**2*b2**2*ka - 1183*a1**2*b2**2*kc - 8*a1*a2**3*ka - 12*a1*a2**2*b1*ka - 95*a1*a2**2*b2*ka + 28*a1*a2**2*b2*
kc + 111*a1*a2*b1*b2*ka + 111*a1*a2*b2**2*ka - 28*a1*a2*b2**2*kc + a2**3*b2*ka - a2**2*b1*b2*ka - a2**2*b2**2*ka) + 91*
df(x1,t)**13*x1**2*x2**3*a1**3*(572*a1**3*kc - 296*a1**2*a2*kc - 572*a1**2*b1*ka - 572*a1**2*b2*ka + 840*a1**2*b2*kc + 
12*a1*a2**2*kc - 28*a1*a2*b1*ka - 28*a1*a2*b2*ka + 40*a1*a2*b2*kc + 56*a1*b1*b2*ka + 56*a1*b2**2*ka - 80*a1*b2**2*kc - 
a2**2*b1*ka - a2**2*b2*ka + a2*b1*b2*ka + a2*b2**2*ka) + df(x1,t)**13*x1**2*x2**2*a1**2*vm*( - 8800*a1**3*ka + 5544*a1**
2*a2*ka + 7260*a1**2*b1*ka + 8316*a1**2*b2*ka - 14196*a1**2*b2*kc - 576*a1*a2**2*ka + 1260*a1*a2*b1*ka + 720*a1*a2*b2*ka
 - 455*a1*a2*b2*kc - 780*a1*b1*b2*ka - 780*a1*b2**2*ka + 1274*a1*b2**2*kc + 4*a2**3*ka + 6*a2**2*b1*ka + 48*a2**2*b2*ka 
- 14*a2**2*b2*kc - 52*a2*b1*b2*ka - 52*a2*b2**2*ka + 14*a2*b2**2*kc) + 91*df(x1,t)**13*x1*x2**4*a1**4*( - 308*a1**2*kc +
 149*a1*a2*kc + 308*a1*b1*ka + 308*a1*b2*ka - 450*a1*b2*kc - 3*a2**2*kc + 8*a2*b1*ka + 8*a2*b2*ka - 10*a2*b2*kc - 15*b1*
b2*ka - 15*b2**2*ka + 20*b2**2*kc) + df(x1,t)**13*x1*x2**3*a1**3*vm*(8360*a1**2*ka - 4158*a1*a2*ka - 6292*a1*b1*ka - 
6864*a1*b2*ka + 10192*a1*b2*kc + 222*a2**2*ka - 468*a2*b1*ka - 312*a2*b2*ka + 182*a2*b2*kc + 364*b1*b2*ka + 364*b2**2*ka
 - 455*b2**2*kc) + 546*df(x1,t)**13*x2**5*a1**5*(11*a1*kc - 5*a2*kc - 11*b1*ka - 11*b2*ka + 16*b2*kc) + 26*df(x1,t)**13*
x2**4*a1**4*vm*( - 110*a1*ka + 44*a2*ka + 77*b1*ka + 77*b2*ka - 105*b2*kc) + 91*df(x1,t)**12*x1**6*a1**4*( - 66*a1**3*kc
 + 55*a1**2*a2*kc + 66*a1**2*b1*ka + 66*a1**2*b2*ka - 110*a1**2*b2*kc - 7*a1*a2**2*kc + 11*a1*a2*b1*ka + 11*a1*a2*b2*ka 
- 30*a1*a2*b2*kc - 22*a1*b1*b2*ka - 22*a1*b2**2*ka + 48*a1*b2**2*kc + 4*a2**2*b1*ka + 4*a2**2*b2*ka - 4*a2*b1*b2*ka - 4*
a2*b2**2*ka) + 91*df(x1,t)**12*x1**5*x2*a1**4*(440*a1**3*kc - 341*a1**2*a2*kc - 440*a1**2*b1*ka - 440*a1**2*b2*ka + 726*
a1**2*b2*kc + 35*a1*a2**2*kc - 66*a1*a2*b1*ka - 66*a1*a2*b2*ka + 150*a1*a2*b2*kc + 121*a1*b1*b2*ka + 121*a1*b2**2*ka - 
240*a1*b2**2*kc - 16*a2**2*b1*ka - 16*a2**2*b2*ka + 16*a2*b1*b2*ka + 16*a2*b2**2*ka) + df(x1,t)**12*x1**5*a1**2*vm*( - 
588*a1**4*ka + 915*a1**3*a2*ka + 924*a1**3*b1*ka + 594*a1**3*b2*ka - 4004*a1**3*b2*kc - 228*a1**2*a2**2*ka + 990*a1**2*
a2*b1*ka + 792*a1**2*a2*b2*ka - 364*a1**2*a2*b2*kc - 55*a1**2*b1*b2*ka - 55*a1**2*b2**2*ka + 1001*a1**2*b2**2*kc - 2*a1*
a2**3*ka + 66*a1*a2**2*b1*ka + 192*a1*a2**2*b2*ka - 91*a1*a2**2*b2*kc - 318*a1*a2*b1*b2*ka - 318*a1*a2*b2**2*ka + 91*a1*
a2*b2**2*kc - 6*a2**3*b2*ka + 10*a2**2*b1*b2*ka + 10*a2**2*b2**2*ka) + 182*df(x1,t)**12*x1**4*x2**2*a1**4*( - 605*a1**3*
kc + 440*a1**2*a2*kc + 605*a1**2*b1*ka + 605*a1**2*b2*ka - 990*a1**2*b2*kc - 35*a1*a2**2*kc + 77*a1*a2*b1*ka + 77*a1*a2*
b2*ka - 150*a1*a2*b2*kc - 132*a1*b1*b2*ka - 132*a1*b2**2*ka + 240*a1*b2**2*kc + 12*a2**2*b1*ka + 12*a2**2*b2*ka - 12*a2*
b1*b2*ka - 12*a2*b2**2*ka) + df(x1,t)**12*x1**4*x2*a1**2*vm*(5400*a1**4*ka - 5900*a1**3*a2*ka - 6600*a1**3*b1*ka - 6600*
a1**3*b2*ka + 22022*a1**3*b2*kc + 1094*a1**2*a2**2*ka - 4620*a1**2*a2*b1*ka - 3256*a1**2*a2*b2*ka + 1820*a1**2*a2*b2*kc 
+ 968*a1**2*b1*b2*ka + 968*a1**2*b2**2*ka - 4368*a1**2*b2**2*kc + 18*a1*a2**3*ka - 204*a1*a2**2*b1*ka - 648*a1*a2**2*b2*
ka + 273*a1*a2**2*b2*kc + 948*a1*a2*b1*b2*ka + 948*a1*a2*b2**2*ka - 273*a1*a2*b2**2*kc + 12*a2**3*b2*ka - 20*a2**2*b1*b2
*ka - 20*a2**2*b2**2*ka) + 182*df(x1,t)**12*x1**3*x2**3*a1**4*(880*a1**3*kc - 605*a1**2*a2*kc - 880*a1**2*b1*ka - 880*a1
**2*b2*ka + 1430*a1**2*b2*kc + 35*a1*a2**2*kc - 88*a1*a2*b1*ka - 88*a1*a2*b2*ka + 150*a1*a2*b2*kc + 143*a1*b1*b2*ka + 
143*a1*b2**2*ka - 240*a1*b2**2*kc - 8*a2**2*b1*ka - 8*a2**2*b2*ka + 8*a2*b1*b2*ka + 8*a2*b2**2*ka) + df(x1,t)**12*x1**3*
x2**2*a1**2*vm*( - 17550*a1**4*ka + 15050*a1**3*a2*ka + 18150*a1**3*b1*ka + 20570*a1**3*b2*ka - 48048*a1**3*b2*kc - 2010
*a1**2*a2**2*ka + 7986*a1**2*a2*b1*ka + 5280*a1**2*a2*b2*ka - 3276*a1**2*a2*b2*kc - 2772*a1**2*b1*b2*ka - 2772*a1**2*b2
**2*ka + 7098*a1**2*b2**2*kc - 30*a1*a2**3*ka + 210*a1*a2**2*b1*ka + 720*a1*a2**2*b2*ka - 273*a1*a2**2*b2*kc - 942*a1*a2
*b1*b2*ka - 942*a1*a2*b2**2*ka + 273*a1*a2*b2**2*kc - 6*a2**3*b2*ka + 10*a2**2*b1*b2*ka + 10*a2**2*b2**2*ka) + 91*df(x1,
t)**12*x1**2*x2**4*a1**4*( - 1430*a1**3*kc + 935*a1**2*a2*kc + 1430*a1**2*b1*ka + 1430*a1**2*b2*ka - 2310*a1**2*b2*kc - 
35*a1*a2**2*kc + 99*a1*a2*b1*ka + 99*a1*a2*b2*ka - 150*a1*a2*b2*kc - 154*a1*b1*b2*ka - 154*a1*b2**2*ka + 240*a1*b2**2*kc
 + 4*a2**2*b1*ka + 4*a2**2*b2*ka - 4*a2*b1*b2*ka - 4*a2*b2**2*ka) + df(x1,t)**12*x1**2*x2**3*a1**3*vm*(26400*a1**3*ka - 
18920*a1**2*a2*ka - 24200*a1**2*b1*ka - 27720*a1**2*b2*ka + 52052*a1**2*b2*kc + 1650*a1*a2**2*ka - 6072*a1*a2*b1*ka - 
3960*a1*a2*b2*ka + 2548*a1*a2*b2*kc + 2860*a1*b1*b2*ka + 2860*a1*b2**2*ka - 5096*a1*b2**2*kc + 14*a2**3*ka - 72*a2**2*b1
*ka - 264*a2**2*b2*ka + 91*a2**2*b2*kc + 312*a2*b1*b2*ka + 312*a2*b2**2*ka - 91*a2*b2**2*kc) + 91*df(x1,t)**12*x1*x2**5*
a1**5*(616*a1**2*kc - 385*a1*a2*kc - 616*a1*b1*ka - 616*a1*b2*ka + 990*a1*b2*kc + 7*a2**2*kc - 22*a2*b1*ka - 22*a2*b2*ka
 + 30*a2*b2*kc + 33*b1*b2*ka + 33*b2**2*ka - 48*b2**2*kc) + df(x1,t)**12*x1*x2**4*a1**4*vm*( - 18810*a1**2*ka + 11715*a1
*a2*ka + 15730*a1*b1*ka + 17160*a1*b2*ka - 28028*a1*b2*kc - 506*a2**2*ka + 1716*a2*b1*ka + 1144*a2*b2*ka - 728*a2*b2*kc 
- 1001*b1*b2*ka - 1001*b2**2*ka + 1365*b2**2*kc) + 2002*df(x1,t)**12*x2**6*a1**6*( - 5*a1*kc + 3*a2*kc + 5*b1*ka + 5*b2*
ka - 8*b2*kc) + 286*df(x1,t)**12*x2**5*a1**5*vm*(18*a1*ka - 10*a2*ka - 14*b1*ka - 14*b2*ka + 21*b2*kc) + 143*df(x1,t)**
11*x1**7*a1**5*( - 48*a1**3*kc + 49*a1**2*a2*kc + 48*a1**2*b1*ka + 48*a1**2*b2*ka - 90*a1**2*b2*kc - 7*a1*a2**2*kc + 14*
a1*a2*b1*ka + 14*a1*a2*b2*ka - 42*a1*a2*b2*kc - 21*a1*b1*b2*ka - 21*a1*b2**2*ka + 56*a1*b2**2*kc + 7*a2**2*b1*ka + 7*a2
**2*b2*ka - 7*a2*b1*b2*ka - 7*a2*b2**2*ka) + 1001*df(x1,t)**11*x1**6*x2*a1**5*(54*a1**3*kc - 52*a1**2*a2*kc - 54*a1**2*
b1*ka - 54*a1**2*b2*ka + 100*a1**2*b2*kc + 6*a1*a2**2*kc - 14*a1*a2*b1*ka - 14*a1*a2*b2*ka + 36*a1*a2*b2*kc + 20*a1*b1*
b2*ka + 20*a1*b2**2*ka - 48*a1*b2**2*kc - 5*a2**2*b1*ka - 5*a2**2*b2*ka + 5*a2*b1*b2*ka + 5*a2*b2**2*ka) + df(x1,t)**11*
x1**6*a1**3*vm*( - 336*a1**4*ka + 768*a1**3*a2*ka + 924*a1**3*b1*ka - 132*a1**3*b2*ka - 6006*a1**3*b2*kc - 190*a1**2*a2
**2*ka + 1980*a1**2*a2*b1*ka + 2310*a1**2*a2*b2*ka - 1001*a1**2*a2*b2*kc + 198*a1**2*b1*b2*ka + 198*a1**2*b2**2*ka + 
2002*a1**2*b2**2*kc - 24*a1*a2**3*ka + 330*a1*a2**2*b1*ka + 440*a1*a2**2*b2*ka - 364*a1*a2**2*b2*kc - 1034*a1*a2*b1*b2*
ka - 1034*a1*a2*b2**2*ka + 364*a1*a2*b2**2*kc - 4*a2**4*ka + 2*a2**3*b1*ka + 42*a2**2*b1*b2*ka + 42*a2**2*b2**2*ka) + 
5005*df(x1,t)**11*x1**5*x2**2*a1**5*( - 36*a1**3*kc + 33*a1**2*a2*kc + 36*a1**2*b1*ka + 36*a1**2*b2*ka - 66*a1**2*b2*kc 
- 3*a1*a2**2*kc + 8*a1*a2*b1*ka + 8*a1*a2*b2*ka - 18*a1*a2*b2*kc - 11*a1*b1*b2*ka - 11*a1*b2**2*ka + 24*a1*b2**2*kc + 2*
a2**2*b1*ka + 2*a2**2*b2*ka - 2*a2*b1*b2*ka - 2*a2*b2**2*ka) + df(x1,t)**11*x1**5*x2*a1**3*vm*(4704*a1**4*ka - 6363*a1**
3*a2*ka - 8316*a1**3*b1*ka - 5346*a1**3*b2*ka + 40040*a1**3*b2*kc + 955*a1**2*a2**2*ka - 11880*a1**2*a2*b1*ka - 11550*a1
**2*a2*b2*ka + 6006*a1**2*a2*b2*kc + 550*a1**2*b1*b2*ka + 550*a1**2*b2**2*ka - 11011*a1**2*b2**2*kc + 204*a1*a2**3*ka - 
1386*a1*a2**2*b1*ka - 2200*a1*a2**2*b2*ka + 1456*a1*a2**2*b2*kc + 4246*a1*a2*b1*b2*ka + 4246*a1*a2*b2**2*ka - 1456*a1*a2
*b2**2*kc + 12*a2**4*ka - 6*a2**3*b1*ka - 126*a2**2*b1*b2*ka - 126*a2**2*b2**2*ka) + 10010*df(x1,t)**11*x1**4*x2**3*a1**
5*(33*a1**3*kc - 29*a1**2*a2*kc - 33*a1**2*b1*ka - 33*a1**2*b2*ka + 60*a1**2*b2*kc + 2*a1*a2**2*kc - 6*a1*a2*b1*ka - 6*
a1*a2*b2*ka + 12*a1*a2*b2*kc + 8*a1*b1*b2*ka + 8*a1*b2**2*ka - 16*a1*b2**2*kc - a2**2*b1*ka - a2**2*b2*ka + a2*b1*b2*ka 
+ a2*b2**2*ka) + 2*df(x1,t)**11*x1**4*x2**2*a1**3*vm*( - 10800*a1**4*ka + 11250*a1**3*a2*ka + 14850*a1**3*b1*ka + 14850*
a1**3*b2*ka - 55055*a1**3*b2*kc - 1110*a1**2*a2**2*ka + 14025*a1**2*a2*b1*ka + 11825*a1**2*a2*b2*ka - 7007*a1**2*a2*b2*
kc - 2420*a1**2*b1*b2*ka - 2420*a1**2*b2**2*ka + 12012*a1**2*b2**2*kc - 234*a1*a2**3*ka + 1089*a1*a2**2*b1*ka + 1980*a1*
a2**2*b2*ka - 1092*a1*a2**2*b2*kc - 3267*a1*a2*b1*b2*ka - 3267*a1*a2*b2**2*ka + 1092*a1*a2*b2**2*kc - 6*a2**4*ka + 3*a2
**3*b1*ka + 63*a2**2*b1*b2*ka + 63*a2**2*b2**2*ka) + 5005*df(x1,t)**11*x1**3*x2**4*a1**5*( - 72*a1**3*kc + 61*a1**2*a2*
kc + 72*a1**2*b1*ka + 72*a1**2*b2*ka - 130*a1**2*b2*kc - 3*a1*a2**2*kc + 10*a1*a2*b1*ka + 10*a1*a2*b2*ka - 18*a1*a2*b2*
kc - 13*a1*b1*b2*ka - 13*a1*b2**2*ka + 24*a1*b2**2*kc + a2**2*b1*ka + a2**2*b2*ka - a2*b1*b2*ka - a2*b2**2*ka) + 2*df(x1
,t)**11*x1**3*x2**3*a1**3*vm*(23400*a1**4*ka - 21075*a1**3*a2*ka - 27225*a1**3*b1*ka - 30855*a1**3*b2*ka + 80080*a1**3*
b2*kc + 1415*a1**2*a2**2*ka - 16335*a1**2*a2*b1*ka - 12375*a1**2*a2*b2*ka + 8008*a1**2*a2*b2*kc + 4620*a1**2*b1*b2*ka + 
4620*a1**2*b2**2*ka - 13013*a1**2*b2**2*kc + 210*a1*a2**3*ka - 759*a1*a2**2*b1*ka - 1540*a1*a2**2*b2*ka + 728*a1*a2**2*
b2*kc + 2233*a1*a2*b1*b2*ka + 2233*a1*a2*b2**2*ka - 728*a1*a2*b2**2*kc + 2*a2**4*ka - a2**3*b1*ka - 21*a2**2*b1*b2*ka - 
21*a2**2*b2**2*ka) + 1001*df(x1,t)**11*x1**2*x2**5*a1**5*(234*a1**3*kc - 192*a1**2*a2*kc - 234*a1**2*b1*ka - 234*a1**2*
b2*ka + 420*a1**2*b2*kc + 6*a1*a2**2*kc - 22*a1*a2*b1*ka - 22*a1*a2*b2*ka + 36*a1*a2*b2*kc + 28*a1*b1*b2*ka + 28*a1*b2**
2*ka - 48*a1*b2**2*kc - a2**2*b1*ka - a2**2*b2*ka + a2*b1*b2*ka + a2*b2**2*ka) + df(x1,t)**11*x1**2*x2**4*a1**4*vm*( - 
52800*a1**3*ka + 43560*a1**2*a2*ka + 54450*a1**2*b1*ka + 62370*a1**2*b2*ka - 130130*a1**2*b2*kc - 1870*a1*a2**2*ka + 
18810*a1*a2*b1*ka + 13200*a1*a2*b2*ka - 9009*a1*a2*b2*kc - 7150*a1*b1*b2*ka - 7150*a1*b2**2*ka + 14014*a1*b2**2*kc - 132
*a2**3*ka + 396*a2**2*b1*ka + 880*a2**2*b2*ka - 364*a2**2*b2*kc - 1144*a2*b1*b2*ka - 1144*a2*b2**2*ka + 364*a2*b2**2*kc)
 + 1001*df(x1,t)**11*x1*x2**6*a1**6*( - 84*a1**2*kc + 67*a1*a2*kc + 84*a1*b1*ka + 84*a1*b2*ka - 150*a1*b2*kc - a2**2*kc 
+ 4*a2*b1*ka + 4*a2*b2*ka - 6*a2*b2*kc - 5*b1*b2*ka - 5*b2**2*ka + 8*b2**2*kc) + 11*df(x1,t)**11*x1*x2**5*a1**5*vm*(2736
*a1**2*ka - 2133*a1*a2*ka - 2574*a1*b1*ka - 2808*a1*b2*ka + 5096*a1*b2*kc + 45*a2**2*ka - 390*a2*b1*ka - 260*a2*b2*ka + 
182*a2*b2*kc + 182*b1*b2*ka + 182*b2**2*ka - 273*b2**2*kc) + 1430*df(x1,t)**11*x2**7*a1**7*(9*a1*kc - 7*a2*kc - 9*b1*ka 
- 9*b2*ka + 16*b2*kc) + 286*df(x1,t)**11*x2**6*a1**6*vm*( - 24*a1*ka + 18*a2*ka + 21*b1*ka + 21*b2*ka - 35*b2*kc) + 143*
df(x1,t)**10*x1**8*a1**6*( - 42*a1**3*kc + 51*a1**2*a2*kc + 42*a1**2*b1*ka + 42*a1**2*b2*ka - 90*a1**2*b2*kc - 7*a1*a2**
2*kc + 21*a1*a2*b1*ka + 21*a1*a2*b2*ka - 70*a1*a2*b2*kc - 24*a1*b1*b2*ka - 24*a1*b2**2*ka + 80*a1*b2**2*kc + 14*a2**2*b1
*ka + 14*a2**2*b2*ka - 14*a2*b1*b2*ka - 14*a2*b2**2*ka) + 143*df(x1,t)**10*x1**7*x2*a1**6*(384*a1**3*kc - 447*a1**2*a2*
kc - 384*a1**2*b1*ka - 384*a1**2*b2*ka + 810*a1**2*b2*kc + 49*a1*a2**2*kc - 168*a1*a2*b1*ka - 168*a1*a2*b2*ka + 490*a1*
a2*b2*kc + 189*a1*b1*b2*ka + 189*a1*b2**2*ka - 560*a1*b2**2*kc - 84*a2**2*b1*ka - 84*a2**2*b2*ka + 84*a2*b1*b2*ka + 84*
a2*b2**2*ka) + df(x1,t)**10*x1**7*a1**4*vm*( - 60*a1**4*ka + 420*a1**3*a2*ka + 660*a1**3*b1*ka - 1188*a1**3*b2*ka - 6864
*a1**3*b2*kc - 162*a1**2*a2**2*ka + 2772*a1**2*a2*b1*ka + 4455*a1**2*a2*b2*ka - 2002*a1**2*a2*b2*kc + 660*a1**2*b1*b2*ka
 + 660*a1**2*b2**2*ka + 3003*a1**2*b2**2*kc + 35*a1*a2**3*ka + 990*a1*a2**2*b1*ka + 605*a1*a2**2*b2*ka - 1001*a1*a2**2*
b2*kc - 2255*a1*a2*b1*b2*ka - 2255*a1*a2*b2**2*ka + 1001*a1*a2*b2**2*kc - 38*a2**4*ka + 22*a2**3*b1*ka + 110*a2**3*b2*ka
 + 88*a2**2*b1*b2*ka + 88*a2**2*b2**2*ka) + 3003*df(x1,t)**10*x1**6*x2**2*a1**6*( - 72*a1**3*kc + 81*a1**2*a2*kc + 72*a1
**2*b1*ka + 72*a1**2*b2*ka - 150*a1**2*b2*kc - 7*a1*a2**2*kc + 27*a1*a2*b1*ka + 27*a1*a2*b2*ka - 70*a1*a2*b2*kc - 30*a1*
b1*b2*ka - 30*a1*b2**2*ka + 80*a1*b2**2*kc + 10*a2**2*b1*ka + 10*a2**2*b2*ka - 10*a2*b1*b2*ka - 10*a2*b2**2*ka) + df(x1,
t)**10*x1**6*x2*a1**4*vm*(2352*a1**4*ka - 3792*a1**3*a2*ka - 7392*a1**3*b1*ka + 1056*a1**3*b2*ka + 54054*a1**3*b2*kc - 
45*a1**2*a2**2*ka - 20592*a1**2*a2*b1*ka - 26928*a1**2*a2*b2*ka + 14014*a1**2*a2*b2*kc - 1782*a1**2*b1*b2*ka - 1782*a1**
2*b2**2*ka - 20020*a1**2*b2**2*kc + 245*a1*a2**3*ka - 5280*a1*a2**2*b1*ka - 4400*a1*a2**2*b2*ka + 5005*a1*a2**2*b2*kc + 
11880*a1*a2*b1*b2*ka + 11880*a1*a2*b2**2*ka - 5005*a1*a2*b2**2*kc + 152*a2**4*ka - 88*a2**3*b1*ka - 440*a2**3*b2*ka - 
352*a2**2*b1*b2*ka - 352*a2**2*b2**2*ka) + 5005*df(x1,t)**10*x1**5*x2**3*a1**6*(96*a1**3*kc - 105*a1**2*a2*kc - 96*a1**2
*b1*ka - 96*a1**2*b2*ka + 198*a1**2*b2*kc + 7*a1*a2**2*kc - 30*a1*a2*b1*ka - 30*a1*a2*b2*ka + 70*a1*a2*b2*kc + 33*a1*b1*
b2*ka + 33*a1*b2**2*ka - 80*a1*b2**2*kc - 8*a2**2*b1*ka - 8*a2**2*b2*ka + 8*a2*b1*b2*ka + 8*a2*b2**2*ka) + df(x1,t)**10*
x1**5*x2**2*a1**4*vm*( - 16464*a1**4*ka + 17964*a1**3*a2*ka + 33264*a1**3*b1*ka + 21384*a1**3*b2*ka - 180180*a1**3*b2*kc
 + 2295*a1**2*a2**2*ka + 62370*a1**2*a2*b1*ka + 68310*a1**2*a2*b2*ka - 40040*a1**2*a2*b2*kc - 2475*a1**2*b1*b2*ka - 2475
*a1**2*b2**2*ka + 55055*a1**2*b2**2*kc - 1330*a1*a2**3*ka + 11220*a1*a2**2*b1*ka + 11550*a1*a2**2*b2*ka - 10010*a1*a2**2
*b2*kc - 24970*a1*a2*b1*b2*ka - 24970*a1*a2*b2**2*ka + 10010*a1*a2*b2**2*kc - 228*a2**4*ka + 132*a2**3*b1*ka + 660*a2**3
*b2*ka + 528*a2**2*b1*b2*ka + 528*a2**2*b2**2*ka) + 5005*df(x1,t)**10*x1**4*x2**4*a1**6*( - 132*a1**3*kc + 141*a1**2*a2*
kc + 132*a1**2*b1*ka + 132*a1**2*b2*ka - 270*a1**2*b2*kc - 7*a1*a2**2*kc + 33*a1*a2*b1*ka + 33*a1*a2*b2*ka - 70*a1*a2*b2
*kc - 36*a1*b1*b2*ka - 36*a1*b2**2*ka + 80*a1*b2**2*kc + 6*a2**2*b1*ka + 6*a2**2*b2*ka - 6*a2*b1*b2*ka - 6*a2*b2**2*ka) 
+ 2*df(x1,t)**10*x1**4*x2**3*a1**4*vm*(25200*a1**4*ka - 24600*a1**3*a2*ka - 39600*a1**3*b1*ka - 39600*a1**3*b2*ka + 
165165*a1**3*b2*kc - 2745*a1**2*a2**2*ka - 49500*a1**2*a2*b1*ka - 46530*a1**2*a2*b2*ka + 30030*a1**2*a2*b2*kc + 7260*a1
**2*b1*b2*ka + 7260*a1**2*b2**2*ka - 40040*a1**2*b2**2*kc + 1085*a1*a2**3*ka - 5940*a1*a2**2*b1*ka - 7150*a1*a2**2*b2*ka
 + 5005*a1*a2**2*b2*kc + 13090*a1*a2*b1*b2*ka + 13090*a1*a2*b2**2*ka - 5005*a1*a2*b2**2*kc + 76*a2**4*ka - 44*a2**3*b1*
ka - 220*a2**3*b2*ka - 176*a2**2*b1*b2*ka - 176*a2**2*b2**2*ka) + 3003*df(x1,t)**10*x1**3*x2**5*a1**6*(192*a1**3*kc - 
201*a1**2*a2*kc - 192*a1**2*b1*ka - 192*a1**2*b2*ka + 390*a1**2*b2*kc + 7*a1*a2**2*kc - 36*a1*a2*b1*ka - 36*a1*a2*b2*ka 
+ 70*a1*a2*b2*kc + 39*a1*b1*b2*ka + 39*a1*b2**2*ka - 80*a1*b2**2*kc - 4*a2**2*b1*ka - 4*a2**2*b2*ka + 4*a2*b1*b2*ka + 4*
a2*b2**2*ka) + df(x1,t)**10*x1**3*x2**4*a1**4*vm*( - 81900*a1**4*ka + 78300*a1**3*a2*ka + 108900*a1**3*b1*ka + 123420*a1
**3*b2*ka - 360360*a1**3*b2*kc + 5580*a1**2*a2**2*ka + 87120*a1**2*a2*b1*ka + 71775*a1**2*a2*b2*ka - 50050*a1**2*a2*b2*
kc - 20790*a1**2*b1*b2*ka - 20790*a1**2*b2**2*ka + 65065*a1**2*b2**2*kc - 1505*a1*a2**3*ka + 6270*a1*a2**2*b1*ka + 8525*
a1*a2**2*b2*ka - 5005*a1*a2**2*b2*kc - 13695*a1*a2*b1*b2*ka - 13695*a1*a2*b2**2*ka + 5005*a1*a2*b2**2*kc - 38*a2**4*ka +
 22*a2**3*b1*ka + 110*a2**3*b2*ka + 88*a2**2*b1*b2*ka + 88*a2**2*b2**2*ka) + 1001*df(x1,t)**10*x1**2*x2**6*a1**6*( - 312
*a1**3*kc + 321*a1**2*a2*kc + 312*a1**2*b1*ka + 312*a1**2*b2*ka - 630*a1**2*b2*kc - 7*a1*a2**2*kc + 39*a1*a2*b1*ka + 39*
a1*a2*b2*ka - 70*a1*a2*b2*kc - 42*a1*b1*b2*ka - 42*a1*b2**2*ka + 80*a1*b2**2*kc + 2*a2**2*b1*ka + 2*a2**2*b2*ka - 2*a2*
b1*b2*ka - 2*a2*b2**2*ka) + 11*df(x1,t)**10*x1**2*x2**5*a1**5*vm*(6720*a1**3*ka - 6480*a1**2*a2*ka - 7920*a1**2*b1*ka - 
9072*a1**2*b2*ka + 21294*a1**2*b2*kc - 243*a1*a2**2*ka - 3672*a1*a2*b1*ka - 2700*a1*a2*b2*ka + 2002*a1*a2*b2*kc + 1170*
a1*b1*b2*ka + 1170*a1*b2**2*ka - 2548*a1*b2**2*kc + 35*a2**3*ka - 120*a2**2*b1*ka - 180*a2**2*b2*ka + 91*a2**2*b2*kc + 
260*a2*b1*b2*ka + 260*a2*b2**2*ka - 91*a2*b2**2*kc) + 143*df(x1,t)**10*x1*x2**7*a1**7*(672*a1**2*kc - 681*a1*a2*kc - 672
*a1*b1*ka - 672*a1*b2*ka + 1350*a1*b2*kc + 7*a2**2*kc - 42*a2*b1*ka - 42*a2*b2*ka + 70*a2*b2*kc + 45*b1*b2*ka + 45*b2**2
*ka - 80*b2**2*kc) + 11*df(x1,t)**10*x1*x2**6*a1**6*vm*( - 3192*a1**2*ka + 3132*a1*a2*ka + 3432*a1*b1*ka + 3744*a1*b2*ka
 - 7644*a1*b2*kc + 45*a2**2*ka + 702*a2*b1*ka + 468*a2*b2*ka - 364*a2*b2*kc - 273*b1*b2*ka - 273*b2**2*ka + 455*b2**2*kc
) + 12870*df(x1,t)**10*x2**8*a1**8*( - a1*kc + a2*kc + b1*ka + b2*ka - 2*b2*kc) + 858*df(x1,t)**10*x2**7*a1**7*vm*(8*a1*
ka - 8*a2*ka - 8*b1*ka - 8*b2*ka + 15*b2*kc) + 143*df(x1,t)**9*x1**9*a1**7*( - 28*a1**3*kc + 39*a1**2*a2*kc + 28*a1**2*
b1*ka + 28*a1**2*b2*ka - 70*a1**2*b2*kc - 3*a1*a2**2*kc + 24*a1*a2*b1*ka + 24*a1*a2*b2*ka - 90*a1*a2*b2*kc - 21*a1*b1*b2
*ka - 21*a1*b2**2*ka + 90*a1*b2**2*kc + 21*a2**2*b1*ka + 21*a2**2*b2*ka - 21*a2*b1*b2*ka - 21*a2*b2**2*ka) + 429*df(x1,t
)**9*x1**8*x2*a1**7*(98*a1**3*kc - 134*a1**2*a2*kc - 98*a1**2*b1*ka - 98*a1**2*b2*ka + 240*a1**2*b2*kc + 8*a1*a2**2*kc -
 72*a1*a2*b1*ka - 72*a1*a2*b2*ka + 240*a1*a2*b2*kc + 64*a1*b1*b2*ka + 64*a1*b2**2*ka - 240*a1*b2**2*kc - 49*a2**2*b1*ka 
- 49*a2**2*b2*ka + 49*a2*b1*b2*ka + 49*a2*b2**2*ka) + df(x1,t)**9*x1**8*a1**5*vm*(60*a1**4*ka + 240*a1**3*a2*ka + 330*a1
**3*b1*ka - 1782*a1**3*b2*ka - 6006*a1**3*b2*kc - 432*a1**2*a2**2*ka + 2772*a1**2*a2*b1*ka + 5940*a1**2*a2*b2*ka - 3003*
a1**2*a2*b2*kc + 1056*a1**2*b1*b2*ka + 1056*a1**2*b2**2*ka + 3432*a1**2*b2**2*kc + 372*a1*a2**3*ka + 1980*a1*a2**2*b1*ka
 + 495*a1*a2**2*b2*ka - 2002*a1*a2**2*b2*kc - 3465*a1*a2*b1*b2*ka - 3465*a1*a2*b2**2*ka + 2002*a1*a2*b2**2*kc - 160*a2**
4*ka + 110*a2**3*b1*ka + 495*a2**3*b2*ka + 55*a2**2*b1*b2*ka + 55*a2**2*b2**2*ka) + 429*df(x1,t)**9*x1**7*x2**2*a1**7*( 
- 448*a1**3*kc + 604*a1**2*a2*kc + 448*a1**2*b1*ka + 448*a1**2*b2*ka - 1080*a1**2*b2*kc - 28*a1*a2**2*kc + 280*a1*a2*b1*
ka + 280*a1*a2*b2*ka - 840*a1*a2*b2*kc - 252*a1*b1*b2*ka - 252*a1*b2**2*ka + 840*a1*b2**2*kc + 147*a2**2*b1*ka + 147*a2
**2*b2*ka - 147*a2*b1*b2*ka - 147*a2*b2**2*ka) + df(x1,t)**9*x1**7*x2*a1**5*vm*(360*a1**4*ka - 1068*a1**3*a2*ka - 4620*
a1**3*b1*ka + 8316*a1**3*b2*ka + 54912*a1**3*b2*kc + 444*a1**2*a2**2*ka - 24948*a1**2*a2*b1*ka - 42900*a1**2*a2*b2*ka + 
24024*a1**2*a2*b2*kc - 5280*a1**2*b1*b2*ka - 5280*a1**2*b2**2*ka - 27027*a1**2*b2**2*kc - 1332*a1*a2**3*ka - 12870*a1*a2
**2*b1*ka - 5643*a1*a2**2*b2*ka + 12012*a1*a2**2*b2*kc + 22473*a1*a2*b1*b2*ka + 22473*a1*a2*b2**2*ka - 12012*a1*a2*b2**2
*kc + 800*a2**4*ka - 550*a2**3*b1*ka - 2475*a2**3*b2*ka - 275*a2**2*b1*b2*ka - 275*a2**2*b2**2*ka) + 3003*df(x1,t)**9*x1
**6*x2**3*a1**7*(168*a1**3*kc - 224*a1**2*a2*kc - 168*a1**2*b1*ka - 168*a1**2*b2*ka + 400*a1**2*b2*kc + 8*a1*a2**2*kc - 
88*a1*a2*b1*ka - 88*a1*a2*b2*ka + 240*a1*a2*b2*kc + 80*a1*b1*b2*ka + 80*a1*b2**2*ka - 240*a1*b2**2*kc - 35*a2**2*b1*ka -
 35*a2**2*b2*ka + 35*a2*b1*b2*ka + 35*a2*b2**2*ka) + df(x1,t)**9*x1**6*x2**2*a1**5*vm*( - 7056*a1**4*ka + 5040*a1**3*a2*
ka + 25872*a1**3*b1*ka - 3696*a1**3*b2*ka - 216216*a1**3*b2*kc + 6768*a1**2*a2**2*ka + 93456*a1**2*a2*b1*ka + 132264*a1
**2*a2*b2*ka - 81081*a1**2*a2*b2*kc + 7128*a1**2*b1*b2*ka + 7128*a1**2*b2**2*ka + 90090*a1**2*b2**2*kc + 1080*a1*a2**3*
ka + 34650*a1*a2**2*b1*ka + 20790*a1*a2**2*b2*ka - 30030*a1*a2**2*b2*kc - 60390*a1*a2*b1*b2*ka - 60390*a1*a2*b2**2*ka + 
30030*a1*a2*b2**2*kc - 1600*a2**4*ka + 1100*a2**3*b1*ka + 4950*a2**3*b2*ka + 550*a2**2*b1*b2*ka + 550*a2**2*b2**2*ka) + 
15015*df(x1,t)**9*x1**5*x2**4*a1**7*( - 56*a1**3*kc + 74*a1**2*a2*kc + 56*a1**2*b1*ka + 56*a1**2*b2*ka - 132*a1**2*b2*kc
 - 2*a1*a2**2*kc + 24*a1*a2*b1*ka + 24*a1*a2*b2*ka - 60*a1*a2*b2*kc - 22*a1*b1*b2*ka - 22*a1*b2**2*ka + 60*a1*b2**2*kc +
 7*a2**2*b1*ka + 7*a2**2*b2*ka - 7*a2*b1*b2*ka - 7*a2*b2**2*ka) + df(x1,t)**9*x1**5*x2**3*a1**5*vm*(32928*a1**4*ka - 
24444*a1**3*a2*ka - 77616*a1**3*b1*ka - 49896*a1**3*b2*ka + 480480*a1**3*b2*kc - 25380*a1**2*a2**2*ka - 190080*a1**2*a2*
b1*ka - 225720*a1**2*a2*b2*ka + 150150*a1**2*a2*b2*kc + 6600*a1**2*b1*b2*ka + 6600*a1**2*b2**2*ka - 165165*a1**2*b2**2*
kc + 1560*a1*a2**3*ka - 49500*a1*a2**2*b1*ka - 36630*a1*a2**2*b2*ka + 40040*a1*a2**2*b2*kc + 86130*a1*a2*b1*b2*ka + 
86130*a1*a2*b2**2*ka - 40040*a1*a2*b2**2*kc + 1600*a2**4*ka - 1100*a2**3*b1*ka - 4950*a2**3*b2*ka - 550*a2**2*b1*b2*ka -
 550*a2**2*b2**2*ka) + 3003*df(x1,t)**9*x1**4*x2**5*a1**7*(308*a1**3*kc - 404*a1**2*a2*kc - 308*a1**2*b1*ka - 308*a1**2*
b2*ka + 720*a1**2*b2*kc + 8*a1*a2**2*kc - 104*a1*a2*b1*ka - 104*a1*a2*b2*ka + 240*a1*a2*b2*kc + 96*a1*b1*b2*ka + 96*a1*
b2**2*ka - 240*a1*b2**2*kc - 21*a2**2*b1*ka - 21*a2**2*b2*ka + 21*a2*b1*b2*ka + 21*a2*b2**2*ka) + 5*df(x1,t)**9*x1**4*x2
**4*a1**5*vm*( - 15120*a1**4*ka + 13440*a1**3*a2*ka + 27720*a1**3*b1*ka + 27720*a1**3*b2*ka - 132132*a1**3*b2*kc + 8016*
a1**2*a2**2*ka + 45540*a1**2*a2*b1*ka + 46068*a1**2*a2*b2*ka - 33033*a1**2*a2*b2*kc - 5808*a1**2*b1*b2*ka - 5808*a1**2*
b2**2*ka + 36036*a1**2*b2**2*kc - 684*a1*a2**3*ka + 7920*a1*a2**2*b1*ka + 6831*a1*a2**2*b2*ka - 6006*a1*a2**2*b2*kc - 
13761*a1*a2*b1*b2*ka - 13761*a1*a2*b2**2*ka + 6006*a1*a2*b2**2*kc - 160*a2**4*ka + 110*a2**3*b1*ka + 495*a2**3*b2*ka + 
55*a2**2*b1*b2*ka + 55*a2**2*b2**2*ka) + 3003*df(x1,t)**9*x1**3*x2**6*a1**7*( - 224*a1**3*kc + 292*a1**2*a2*kc + 224*a1
**2*b1*ka + 224*a1**2*b2*ka - 520*a1**2*b2*kc - 4*a1*a2**2*kc + 56*a1*a2*b1*ka + 56*a1*a2*b2*ka - 120*a1*a2*b2*kc - 52*
a1*b1*b2*ka - 52*a1*b2**2*ka + 120*a1*b2**2*kc + 7*a2**2*b1*ka + 7*a2**2*b2*ka - 7*a2*b1*b2*ka - 7*a2*b2**2*ka) + df(x1,
t)**9*x1**3*x2**5*a1**5*vm*(98280*a1**4*ka - 101220*a1**3*a2*ka - 152460*a1**3*b1*ka - 172788*a1**3*b2*ka + 576576*a1**3
*b2*kc - 33228*a1**2*a2**2*ka - 161172*a1**2*a2*b1*ka - 140580*a1**2*a2*b2*ka + 108108*a1**2*a2*b2*kc + 33264*a1**2*b1*
b2*ka + 33264*a1**2*b2**2*ka - 117117*a1**2*b2**2*kc + 2268*a1*a2**3*ka - 16830*a1*a2**2*b1*ka - 16335*a1*a2**2*b2*ka + 
12012*a1*a2**2*b2*kc + 29205*a1*a2*b1*b2*ka + 29205*a1*a2*b2**2*ka - 12012*a1*a2*b2**2*kc + 160*a2**4*ka - 110*a2**3*b1*
ka - 495*a2**3*b2*ka - 55*a2**2*b1*b2*ka - 55*a2**2*b2**2*ka) + 429*df(x1,t)**9*x1**2*x2**7*a1**7*(728*a1**3*kc - 944*a1
**2*a2*kc - 728*a1**2*b1*ka - 728*a1**2*b2*ka + 1680*a1**2*b2*kc + 8*a1*a2**2*kc - 120*a1*a2*b1*ka - 120*a1*a2*b2*ka + 
240*a1*a2*b2*kc + 112*a1*b1*b2*ka + 112*a1*b2**2*ka - 240*a1*b2**2*kc - 7*a2**2*b1*ka - 7*a2**2*b2*ka + 7*a2*b1*b2*ka + 
7*a2*b2**2*ka) + 11*df(x1,t)**9*x1**2*x2**6*a1**6*vm*( - 6720*a1**3*ka + 7728*a1**2*a2*ka + 9240*a1**2*b1*ka + 10584*a1
**2*b2*ka - 28392*a1**2*b2*kc + 1296*a1*a2**2*ka + 5688*a1*a2*b1*ka + 4320*a1*a2*b2*ka - 3549*a1*a2*b2*kc - 1560*a1*b1*
b2*ka - 1560*a1*b2**2*ka + 3822*a1*b2**2*kc - 48*a2**3*ka + 270*a2**2*b1*ka + 288*a2**2*b2*ka - 182*a2**2*b2*kc - 468*a2
*b1*b2*ka - 468*a2*b2**2*ka + 182*a2*b2**2*kc) + 429*df(x1,t)**9*x1*x2**8*a1**8*( - 196*a1**2*kc + 253*a1*a2*kc + 196*a1
*b1*ka + 196*a1*b2*ka - 450*a1*b2*kc - a2**2*kc + 16*a2*b1*ka + 16*a2*b2*ka - 30*a2*b2*kc - 15*b1*b2*ka - 15*b2**2*ka + 
30*b2**2*kc) + 33*df(x1,t)**9*x1*x2**7*a1**7*vm*(912*a1**2*ka - 1140*a1*a2*ka - 1144*a1*b1*ka - 1248*a1*b2*ka + 2912*a1*
b2*kc - 76*a2**2*ka - 312*a2*b1*ka - 208*a2*b2*ka + 182*a2*b2*kc + 104*b1*b2*ka + 104*b2**2*ka - 195*b2**2*kc) + 1430*df
(x1,t)**9*x2**9*a1**9*(7*a1*kc - 9*a2*kc - 7*b1*ka - 7*b2*ka + 16*b2*kc) + 858*df(x1,t)**9*x2**8*a1**8*vm*( - 6*a1*ka + 
8*a2*ka + 7*b1*ka + 7*b2*ka - 15*b2*kc) + 143*df(x1,t)**8*x1**10*a1**8*( - 14*a1**3*kc + 21*a1**2*a2*kc + 14*a1**2*b1*ka
 + 14*a1**2*b2*ka - 42*a1**2*b2*kc + 3*a1*a2**2*kc + 21*a1*a2*b1*ka + 21*a1*a2*b2*ka - 90*a1*a2*b2*kc - 14*a1*b1*b2*ka -
 14*a1*b2**2*ka + 80*a1*b2**2*kc + 24*a2**2*b1*ka + 24*a2**2*b2*ka - 24*a2*b1*b2*ka - 24*a2*b2**2*ka) + 143*df(x1,t)**8*
x1**9*x2*a1**8*(168*a1**3*kc - 259*a1**2*a2*kc - 168*a1**2*b1*ka - 168*a1**2*b2*ka + 490*a1**2*b2*kc - 27*a1*a2**2*kc - 
210*a1*a2*b1*ka - 210*a1*a2*b2*ka + 810*a1*a2*b2*kc + 147*a1*b1*b2*ka + 147*a1*b2**2*ka - 720*a1*b2**2*kc - 192*a2**2*b1
*ka - 192*a2**2*b2*ka + 192*a2*b1*b2*ka + 192*a2*b2**2*ka) + df(x1,t)**8*x1**9*a1**6*vm*(50*a1**4*ka + 255*a1**3*a2*ka +
 110*a1**3*b1*ka - 1540*a1**3*b2*ka - 4004*a1**3*b2*kc - 888*a1**2*a2**2*ka + 1980*a1**2*a2*b1*ka + 5544*a1**2*a2*b2*ka 
- 3432*a1**2*a2*b2*kc + 1089*a1**2*b1*b2*ka + 1089*a1**2*b2**2*ka + 3003*a1**2*b2**2*kc + 948*a1*a2**3*ka + 2772*a1*a2**
2*b1*ka + 264*a1*a2**2*b2*ka - 3003*a1*a2**2*b2*kc - 3828*a1*a2*b1*b2*ka - 3828*a1*a2*b2**2*ka + 3003*a1*a2*b2**2*kc - 
390*a2**4*ka + 330*a2**3*b1*ka + 1188*a2**3*b2*ka - 198*a2**2*b1*b2*ka - 198*a2**2*b2**2*ka) + 858*df(x1,t)**8*x1**8*x2
**2*a1**8*( - 147*a1**3*kc + 231*a1**2*a2*kc + 147*a1**2*b1*ka + 147*a1**2*b2*ka - 420*a1**2*b2*kc + 18*a1*a2**2*kc + 
154*a1*a2*b1*ka + 154*a1*a2*b2*ka - 540*a1*a2*b2*kc - 112*a1*b1*b2*ka - 112*a1*b2**2*ka + 480*a1*b2**2*kc + 112*a2**2*b1
*ka + 112*a2**2*b2*ka - 112*a2*b1*b2*ka - 112*a2*b2**2*ka) + 3*df(x1,t)**8*x1**8*x2*a1**6*vm*( - 100*a1**4*ka - 180*a1**
3*a2*ka - 660*a1**3*b1*ka + 3564*a1**3*b2*ka + 14014*a1**3*b2*kc + 1292*a1**2*a2**2*ka - 7128*a1**2*a2*b1*ka - 15840*a1
**2*a2*b2*ka + 10296*a1**2*a2*b2*kc - 2464*a1**2*b1*b2*ka - 2464*a1**2*b2**2*ka - 9152*a1**2*b2**2*kc - 1852*a1*a2**3*ka
 - 7128*a1*a2**2*b1*ka - 1760*a1*a2**2*b2*ka + 7007*a1*a2**2*b2*kc + 9944*a1*a2*b1*b2*ka + 9944*a1*a2*b2**2*ka - 7007*a1
*a2*b2**2*kc + 780*a2**4*ka - 660*a2**3*b1*ka - 2376*a2**3*b2*ka + 396*a2**2*b1*b2*ka + 396*a2**2*b2**2*ka) + 12012*df(
x1,t)**8*x1**7*x2**3*a1**8*(32*a1**3*kc - 51*a1**2*a2*kc - 32*a1**2*b1*ka - 32*a1**2*b2*ka + 90*a1**2*b2*kc - 3*a1*a2**2
*kc - 28*a1*a2*b1*ka - 28*a1*a2*b2*ka + 90*a1*a2*b2*kc + 21*a1*b1*b2*ka + 21*a1*b2**2*ka - 80*a1*b2**2*kc - 16*a2**2*b1*
ka - 16*a2**2*b2*ka + 16*a2*b1*b2*ka + 16*a2*b2**2*ka) + 3*df(x1,t)**8*x1**7*x2**2*a1**6*vm*( - 300*a1**4*ka - 804*a1**3
*a2*ka + 4620*a1**3*b1*ka - 8316*a1**3*b2*ka - 64064*a1**3*b2*kc - 84*a1**2*a2**2*ka + 32340*a1**2*a2*b1*ka + 58520*a1**
2*a2*b2*ka - 40040*a1**2*a2*b2*kc + 6160*a1**2*b1*b2*ka + 6160*a1**2*b2**2*ka + 36036*a1**2*b2**2*kc + 4476*a1*a2**3*ka 
+ 23364*a1*a2**2*b1*ka + 8712*a1*a2**2*b2*ka - 21021*a1*a2**2*b2*kc - 32868*a1*a2*b1*b2*ka - 32868*a1*a2*b2**2*ka + 
21021*a1*a2*b2**2*kc - 1950*a2**4*ka + 1650*a2**3*b1*ka + 5940*a2**3*b2*ka - 990*a2**2*b1*b2*ka - 990*a2**2*b2**2*ka) + 
6006*df(x1,t)**8*x1**6*x2**4*a1**8*( - 126*a1**3*kc + 203*a1**2*a2*kc + 126*a1**2*b1*ka + 126*a1**2*b2*ka - 350*a1**2*b2
*kc + 9*a1*a2**2*kc + 91*a1*a2*b1*ka + 91*a1*a2*b2*ka - 270*a1*a2*b2*kc - 70*a1*b1*b2*ka - 70*a1*b2**2*ka + 240*a1*b2**2
*kc + 40*a2**2*b1*ka + 40*a2**2*b2*ka - 40*a2*b1*b2*ka - 40*a2*b2**2*ka) + 3*df(x1,t)**8*x1**6*x2**3*a1**6*vm*(3920*a1**
4*ka + 2128*a1**3*a2*ka - 17248*a1**3*b1*ka + 2464*a1**3*b2*ka + 168168*a1**3*b2*kc - 10052*a1**2*a2**2*ka - 81312*a1**2
*a2*b1*ka - 121968*a1**2*a2*b2*ka + 88088*a1**2*a2*b2*kc - 5544*a1**2*b1*b2*ka - 5544*a1**2*b2**2*ka - 80080*a1**2*b2**2
*kc - 5660*a1*a2**3*ka - 42240*a1*a2**2*b1*ka - 20240*a1*a2**2*b2*ka + 35035*a1*a2**2*b2*kc + 59840*a1*a2*b1*b2*ka + 
59840*a1*a2*b2**2*ka - 35035*a1*a2*b2**2*kc + 2600*a2**4*ka - 2200*a2**3*b1*ka - 7920*a2**3*b2*ka + 1320*a2**2*b1*b2*ka 
+ 1320*a2**2*b2**2*ka) + 6006*df(x1,t)**8*x1**5*x2**5*a1**8*(168*a1**3*kc - 273*a1**2*a2*kc - 168*a1**2*b1*ka - 168*a1**
2*b2*ka + 462*a1**2*b2*kc - 9*a1*a2**2*kc - 98*a1*a2*b1*ka - 98*a1*a2*b2*ka + 270*a1*a2*b2*kc + 77*a1*b1*b2*ka + 77*a1*
b2**2*ka - 240*a1*b2**2*kc - 32*a2**2*b1*ka - 32*a2**2*b2*ka + 32*a2*b1*b2*ka + 32*a2*b2**2*ka) + 3*df(x1,t)**8*x1**5*x2
**4*a1**6*vm*( - 13720*a1**4*ka + 3486*a1**3*a2*ka + 38808*a1**3*b1*ka + 24948*a1**3*b2*ka - 280280*a1**3*b2*kc + 27020*
a1**2*a2**2*ka + 124740*a1**2*a2*b1*ka + 157080*a1**2*a2*b2*ka - 120120*a1**2*a2*b2*kc - 3850*a1**2*b1*b2*ka - 3850*a1**
2*b2**2*ka + 110110*a1**2*b2**2*kc + 3860*a1*a2**3*ka + 45540*a1*a2**2*b1*ka + 25960*a1*a2**2*b2*ka - 35035*a1*a2**2*b2*
kc - 64900*a1*a2*b1*b2*ka - 64900*a1*a2*b2**2*ka + 35035*a1*a2*b2**2*kc - 1950*a2**4*ka + 1650*a2**3*b1*ka + 5940*a2**3*
b2*ka - 990*a2**2*b1*b2*ka - 990*a2**2*b2**2*ka) + 12012*df(x1,t)**8*x1**4*x2**6*a1**8*( - 77*a1**3*kc + 126*a1**2*a2*kc
 + 77*a1**2*b1*ka + 77*a1**2*b2*ka - 210*a1**2*b2*kc + 3*a1*a2**2*kc + 35*a1*a2*b1*ka + 35*a1*a2*b2*ka - 90*a1*a2*b2*kc 
- 28*a1*b1*b2*ka - 28*a1*b2**2*ka + 80*a1*b2**2*kc + 8*a2**2*b1*ka + 8*a2**2*b2*ka - 8*a2*b1*b2*ka - 8*a2*b2**2*ka) + 3*
df(x1,t)**8*x1**4*x2**5*a1**6*vm*(25200*a1**4*ka - 19320*a1**3*a2*ka - 55440*a1**3*b1*ka - 55440*a1**3*b2*ka + 308308*a1
**3*b2*kc - 34524*a1**2*a2**2*ka - 120120*a1**2*a2*b1*ka - 128128*a1**2*a2*b2*ka + 104104*a1**2*a2*b2*kc + 13552*a1**2*
b1*b2*ka + 13552*a1**2*b2**2*ka - 96096*a1**2*b2**2*kc - 1236*a1*a2**3*ka - 29304*a1*a2**2*b1*ka - 19008*a1*a2**2*b2*ka 
+ 21021*a1*a2**2*b2*kc + 41976*a1*a2*b1*b2*ka + 41976*a1*a2*b2**2*ka - 21021*a1*a2*b2**2*kc + 780*a2**4*ka - 660*a2**3*
b1*ka - 2376*a2**3*b2*ka + 396*a2**2*b1*b2*ka + 396*a2**2*b2**2*ka) + 1716*df(x1,t)**8*x1**3*x2**7*a1**8*(336*a1**3*kc -
 553*a1**2*a2*kc - 336*a1**2*b1*ka - 336*a1**2*b2*ka + 910*a1**2*b2*kc - 9*a1*a2**2*kc - 112*a1*a2*b1*ka - 112*a1*a2*b2*
ka + 270*a1*a2*b2*kc + 91*a1*b1*b2*ka + 91*a1*b2**2*ka - 240*a1*b2**2*kc - 16*a2**2*b1*ka - 16*a2**2*b2*ka + 16*a2*b1*b2
*ka + 16*a2*b2**2*ka) + 3*df(x1,t)**8*x1**3*x2**6*a1**6*vm*( - 27300*a1**4*ka + 30940*a1**3*a2*ka + 50820*a1**3*b1*ka + 
57596*a1**3*b2*ka - 224224*a1**3*b2*kc + 24388*a1**2*a2**2*ka + 71148*a1**2*a2*b1*ka + 64680*a1**2*a2*b2*ka - 56056*a1**
2*a2*b2*kc - 12936*a1**2*b1*b2*ka - 12936*a1**2*b2**2*ka + 52052*a1**2*b2**2*kc + 52*a1*a2**3*ka + 10428*a1*a2**2*b1*ka 
+ 7480*a1*a2**2*b2*ka - 7007*a1*a2**2*b2*kc - 15004*a1*a2*b1*b2*ka - 15004*a1*a2*b2**2*ka + 7007*a1*a2*b2**2*kc - 130*a2
**4*ka + 110*a2**3*b1*ka + 396*a2**3*b2*ka - 66*a2**2*b1*b2*ka - 66*a2**2*b2**2*ka) + 429*df(x1,t)**8*x1**2*x2**8*a1**8*
( - 546*a1**3*kc + 903*a1**2*a2*kc + 546*a1**2*b1*ka + 546*a1**2*b2*ka - 1470*a1**2*b2*kc + 9*a1*a2**2*kc + 119*a1*a2*b1
*ka + 119*a1*a2*b2*ka - 270*a1*a2*b2*kc - 98*a1*b1*b2*ka - 98*a1*b2**2*ka + 240*a1*b2**2*kc + 8*a2**2*b1*ka + 8*a2**2*b2
*ka - 8*a2*b1*b2*ka - 8*a2*b2**2*ka) + 33*df(x1,t)**8*x1**2*x2**7*a1**7*vm*(1600*a1**3*ka - 2256*a1**2*a2*ka - 2640*a1**
2*b1*ka - 3024*a1**2*b2*ka + 9464*a1**2*b2*kc - 836*a1*a2**2*ka - 2160*a1*a2*b1*ka - 1680*a1*a2*b2*ka + 1560*a1*a2*b2*kc
 + 520*a1*b1*b2*ka + 520*a1*b2**2*ka - 1456*a1*b2**2*kc + 4*a2**3*ka - 144*a2**2*b1*ka - 112*a2**2*b2*ka + 91*a2**2*b2*
kc + 208*a2*b1*b2*ka + 208*a2*b2**2*ka - 91*a2*b2**2*kc) + 143*df(x1,t)**8*x1*x2**9*a1**9*(392*a1**2*kc - 651*a1*a2*kc -
 392*a1*b1*ka - 392*a1*b2*ka + 1050*a1*b2*kc - 3*a2**2*kc - 42*a2*b1*ka - 42*a2*b2*ka + 90*a2*b2*kc + 35*b1*b2*ka + 35*
b2**2*ka - 80*b2**2*kc) + 33*df(x1,t)**8*x1*x2**8*a1**8*vm*( - 570*a1**2*ka + 927*a1*a2*ka + 858*a1*b1*ka + 936*a1*b2*ka
 - 2548*a1*b2*kc + 132*a2**2*ka + 312*a2*b1*ka + 208*a2*b2*ka - 208*a2*b2*kc - 91*b1*b2*ka - 91*b2**2*ka + 195*b2**2*kc)
 + 2002*df(x1,t)**8*x2**10*a1**10*( - 3*a1*kc + 5*a2*kc + 3*b1*ka + 3*b2*ka - 8*b2*kc) + 286*df(x1,t)**8*x2**9*a1**9*vm*
(10*a1*ka - 18*a2*ka - 14*b1*ka - 14*b2*ka + 35*b2*kc) + 91*df(x1,t)**7*x1**11*a1**9*( - 8*a1**3*kc + 11*a1**2*a2*kc + 8
*a1**2*b1*ka + 8*a1**2*b2*ka - 30*a1**2*b2*kc + 11*a1*a2**2*kc + 22*a1*a2*b1*ka + 22*a1*a2*b2*ka - 110*a1*a2*b2*kc - 11*
a1*b1*b2*ka - 11*a1*b2**2*ka + 88*a1*b2**2*kc + 33*a2**2*b1*ka + 33*a2**2*b2*ka - 33*a2*b1*b2*ka - 33*a2*b2**2*ka) + 
1001*df(x1,t)**7*x1**10*x2*a1**9*(10*a1**3*kc - 16*a1**2*a2*kc - 10*a1**2*b1*ka - 10*a1**2*b2*ka + 36*a1**2*b2*kc - 10*
a1*a2**2*kc - 22*a1*a2*b1*ka - 22*a1*a2*b2*ka + 100*a1*a2*b2*kc + 12*a1*b1*b2*ka + 12*a1*b2**2*ka - 80*a1*b2**2*kc - 27*
a2**2*b1*ka - 27*a2**2*b2*ka + 27*a2*b1*b2*ka + 27*a2*b2**2*ka) + df(x1,t)**7*x1**10*a1**7*vm*(16*a1**4*ka + 240*a1**3*
a2*ka + 22*a1**3*b1*ka - 858*a1**3*b2*ka - 2002*a1**3*b2*kc - 1026*a1**2*a2**2*ka + 990*a1**2*a2*b1*ka + 3564*a1**2*a2*
b2*ka - 3003*a1**2*a2*b2*kc + 770*a1**2*b1*b2*ka + 770*a1**2*b2**2*ka + 2002*a1**2*b2**2*kc + 1296*a1*a2**3*ka + 2772*a1
*a2**2*b1*ka + 264*a1*a2**2*b2*ka - 3432*a1*a2**2*b2*kc - 3036*a1*a2*b1*b2*ka - 3036*a1*a2*b2**2*ka + 3432*a1*a2*b2**2*
kc - 600*a2**4*ka + 660*a2**3*b1*ka + 1848*a2**3*b2*ka - 660*a2**2*b1*b2*ka - 660*a2**2*b2**2*ka) + 3003*df(x1,t)**7*x1
**9*x2**2*a1**9*( - 20*a1**3*kc + 35*a1**2*a2*kc + 20*a1**2*b1*ka + 20*a1**2*b2*ka - 70*a1**2*b2*kc + 15*a1*a2**2*kc + 
36*a1*a2*b1*ka + 36*a1*a2*b2*ka - 150*a1*a2*b2*kc - 21*a1*b1*b2*ka - 21*a1*b2**2*ka + 120*a1*b2**2*kc + 36*a2**2*b1*ka +
 36*a2**2*b2*ka - 36*a2*b1*b2*ka - 36*a2*b2**2*ka) + df(x1,t)**7*x1**9*x2*a1**7*vm*( - 200*a1**4*ka - 1075*a1**3*a2*ka -
 550*a1**3*b1*ka + 7700*a1**3*b2*ka + 24024*a1**3*b2*kc + 7083*a1**2*a2**2*ka - 12870*a1**2*a2*b1*ka - 36432*a1**2*a2*b2
*ka + 30030*a1**2*a2*b2*kc - 6534*a1**2*b1*b2*ka - 6534*a1**2*b2**2*ka - 21021*a1**2*b2**2*kc - 9864*a1*a2**3*ka - 24948
*a1*a2**2*b1*ka - 5016*a1*a2**2*b2*ka + 27456*a1*a2**2*b2*kc + 28116*a1*a2*b1*b2*ka + 28116*a1*a2*b2**2*ka - 27456*a1*a2
*b2**2*kc + 4200*a2**4*ka - 4620*a2**3*b1*ka - 12936*a2**3*b2*ka + 4620*a2**2*b1*b2*ka + 4620*a2**2*b2**2*ka) + 6006*df(
x1,t)**7*x1**8*x2**3*a1**9*(35*a1**3*kc - 65*a1**2*a2*kc - 35*a1**2*b1*ka - 35*a1**2*b2*ka + 120*a1**2*b2*kc - 20*a1*a2
**2*kc - 52*a1*a2*b1*ka - 52*a1*a2*b2*ka + 200*a1*a2*b2*kc + 32*a1*b1*b2*ka + 32*a1*b2**2*ka - 160*a1*b2**2*kc - 42*a2**
2*b1*ka - 42*a2**2*b2*ka + 42*a2*b1*b2*ka + 42*a2*b2**2*ka) + 6*df(x1,t)**7*x1**8*x2**2*a1**7*vm*(100*a1**4*ka - 150*a1
**3*a2*ka + 825*a1**3*b1*ka - 4455*a1**3*b2*ka - 21021*a1**3*b2*kc - 2700*a1**2*a2**2*ka + 11682*a1**2*a2*b1*ka + 26730*
a1**2*a2*b2*ka - 22022*a1**2*a2*b2*kc + 3696*a1**2*b1*b2*ka + 3696*a1**2*b2**2*ka + 16016*a1**2*b2**2*kc + 5460*a1*a2**3
*ka + 16170*a1*a2**2*b1*ka + 4620*a1*a2**2*b2*ka - 16016*a1*a2**2*b2*kc - 18634*a1*a2*b1*b2*ka - 18634*a1*a2*b2**2*ka + 
16016*a1*a2*b2**2*kc - 2100*a2**4*ka + 2310*a2**3*b1*ka + 6468*a2**3*b2*ka - 2310*a2**2*b1*b2*ka - 2310*a2**2*b2**2*ka) 
+ 6006*df(x1,t)**7*x1**7*x2**4*a1**9*( - 80*a1**3*kc + 155*a1**2*a2*kc + 80*a1**2*b1*ka + 80*a1**2*b2*ka - 270*a1**2*b2*
kc + 35*a1*a2**2*kc + 98*a1*a2*b1*ka + 98*a1*a2*b2*ka - 350*a1*a2*b2*kc - 63*a1*b1*b2*ka - 63*a1*b2**2*ka + 280*a1*b2**2
*kc + 63*a2**2*b1*ka + 63*a2**2*b2*ka - 63*a2*b1*b2*ka - 63*a2*b2**2*ka) + 12*df(x1,t)**7*x1**7*x2**3*a1**7*vm*(100*a1**
4*ka + 1115*a1**3*a2*ka - 1925*a1**3*b1*ka + 3465*a1**3*b2*ka + 32032*a1**3*b2*kc + 105*a1**2*a2**2*ka - 17787*a1**2*a2*
b1*ka - 33495*a1**2*a2*b2*ka + 28028*a1**2*a2*b2*kc - 3080*a1**2*b1*b2*ka - 3080*a1**2*b2**2*ka - 21021*a1**2*b2**2*kc -
 5166*a1*a2**3*ka - 17787*a1*a2**2*b1*ka - 6314*a1*a2**2*b2*ka + 16016*a1*a2**2*b2*kc + 20867*a1*a2*b1*b2*ka + 20867*a1*
a2*b2**2*ka - 16016*a1*a2*b2**2*kc + 1750*a2**4*ka - 1925*a2**3*b1*ka - 5390*a2**3*b2*ka + 1925*a2**2*b1*b2*ka + 1925*a2
**2*b2**2*ka) + 126126*df(x1,t)**7*x1**6*x2**5*a1**9*(6*a1**3*kc - 12*a1**2*a2*kc - 6*a1**2*b1*ka - 6*a1**2*b2*ka + 20*
a1**2*b2*kc - 2*a1*a2**2*kc - 6*a1*a2*b1*ka - 6*a1*a2*b2*ka + 20*a1*a2*b2*kc + 4*a1*b1*b2*ka + 4*a1*b2**2*ka - 16*a1*b2
**2*kc - 3*a2**2*b1*ka - 3*a2**2*b2*ka + 3*a2*b1*b2*ka + 3*a2*b2**2*ka) + 42*df(x1,t)**7*x1**6*x2**4*a1**7*vm*( - 280*a1
**4*ka - 680*a1**3*a2*ka + 1540*a1**3*b1*ka - 220*a1**3*b2*ka - 18018*a1**3*b2*kc + 1554*a1**2*a2**2*ka + 9636*a1**2*a2*
b1*ka + 15114*a1**2*a2*b2*ka - 13013*a1**2*a2*b2*kc + 594*a1**2*b1*b2*ka + 594*a1**2*b2**2*ka + 10010*a1**2*b2**2*kc + 
1740*a1*a2**3*ka + 6930*a1*a2**2*b1*ka + 2860*a1*a2**2*b2*ka - 5720*a1*a2**2*b2*kc - 8250*a1*a2*b1*b2*ka - 8250*a1*a2*b2
**2*ka + 5720*a1*a2*b2**2*kc - 500*a2**4*ka + 550*a2**3*b1*ka + 1540*a2**3*b2*ka - 550*a2**2*b1*b2*ka - 550*a2**2*b2**2*
ka) + 42042*df(x1,t)**7*x1**5*x2**6*a1**9*( - 20*a1**3*kc + 41*a1**2*a2*kc + 20*a1**2*b1*ka + 20*a1**2*b2*ka - 66*a1**2*
b2*kc + 5*a1*a2**2*kc + 16*a1*a2*b1*ka + 16*a1*a2*b2*ka - 50*a1*a2*b2*kc - 11*a1*b1*b2*ka - 11*a1*b2**2*ka + 40*a1*b2**2
*kc + 6*a2**2*b1*ka + 6*a2**2*b2*ka - 6*a2*b1*b2*ka - 6*a2*b2**2*ka) + 42*df(x1,t)**7*x1**5*x2**5*a1**7*vm*(784*a1**4*ka
 + 375*a1**3*a2*ka - 2772*a1**3*b1*ka - 1782*a1**3*b2*ka + 24024*a1**3*b2*kc - 3447*a1**2*a2**2*ka - 11880*a1**2*a2*b1*
ka - 15642*a1**2*a2*b2*ka + 14014*a1**2*a2*b2*kc + 330*a1**2*b1*b2*ka + 330*a1**2*b2**2*ka - 11011*a1**2*b2**2*kc - 1308
*a1*a2**3*ka - 6006*a1*a2**2*b1*ka - 2772*a1*a2**2*b2*ka + 4576*a1*a2**2*b2*kc + 7238*a1*a2*b1*b2*ka + 7238*a1*a2*b2**2*
ka - 4576*a1*a2*b2**2*kc + 300*a2**4*ka - 330*a2**3*b1*ka - 924*a2**3*b2*ka + 330*a2**2*b1*b2*ka + 330*a2**2*b2**2*ka) +
 12012*df(x1,t)**7*x1**4*x2**7*a1**9*(55*a1**3*kc - 115*a1**2*a2*kc - 55*a1**2*b1*ka - 55*a1**2*b2*ka + 180*a1**2*b2*kc 
- 10*a1*a2**2*kc - 34*a1*a2*b1*ka - 34*a1*a2*b2*ka + 100*a1*a2*b2*kc + 24*a1*b1*b2*ka + 24*a1*b2**2*ka - 80*a1*b2**2*kc 
- 9*a2**2*b1*ka - 9*a2**2*b2*ka + 9*a2*b1*b2*ka + 9*a2*b2**2*ka) + 84*df(x1,t)**7*x1**4*x2**6*a1**7*vm*( - 600*a1**4*ka 
+ 350*a1**3*a2*ka + 1650*a1**3*b1*ka + 1650*a1**3*b2*ka - 11011*a1**3*b2*kc + 1878*a1**2*a2**2*ka + 4785*a1**2*a2*b1*ka 
+ 5313*a1**2*a2*b2*ka - 5005*a1**2*a2*b2*kc - 484*a1**2*b1*b2*ka - 484*a1**2*b2**2*ka + 4004*a1**2*b2**2*kc + 306*a1*a2
**3*ka + 1617*a1*a2**2*b1*ka + 814*a1*a2**2*b2*ka - 1144*a1*a2**2*b2*kc - 1969*a1*a2*b1*b2*ka - 1969*a1*a2*b2**2*ka + 
1144*a1*a2*b2**2*kc - 50*a2**4*ka + 55*a2**3*b1*ka + 154*a2**3*b2*ka - 55*a2**2*b1*b2*ka - 55*a2**2*b2**2*ka) + 9009*df(
x1,t)**7*x1**3*x2**8*a1**9*( - 40*a1**3*kc + 85*a1**2*a2*kc + 40*a1**2*b1*ka + 40*a1**2*b2*ka - 130*a1**2*b2*kc + 5*a1*
a2**2*kc + 18*a1*a2*b1*ka + 18*a1*a2*b2*ka - 50*a1*a2*b2*kc - 13*a1*b1*b2*ka - 13*a1*b2**2*ka + 40*a1*b2**2*kc + 3*a2**2
*b1*ka + 3*a2**2*b2*ka - 3*a2*b1*b2*ka - 3*a2*b2**2*ka) + 12*df(x1,t)**7*x1**3*x2**7*a1**7*vm*(3900*a1**4*ka - 5025*a1**
3*a2*ka - 9075*a1**3*b1*ka - 10285*a1**3*b2*ka + 48048*a1**3*b2*kc - 8115*a1**2*a2**2*ka - 17061*a1**2*a2*b1*ka - 16005*
a1**2*a2*b2*ka + 16016*a1**2*a2*b2*kc + 2772*a1**2*b1*b2*ka + 2772*a1**2*b2**2*ka - 13013*a1**2*b2**2*kc - 570*a1*a2**3*
ka - 3465*a1*a2**2*b1*ka - 1870*a1*a2**2*b2*ka + 2288*a1*a2**2*b2*kc + 4257*a1*a2*b1*b2*ka + 4257*a1*a2*b2**2*ka - 2288*
a1*a2*b2**2*kc + 50*a2**4*ka - 55*a2**3*b1*ka - 154*a2**3*b2*ka + 55*a2**2*b1*b2*ka + 55*a2**2*b2**2*ka) + 1001*df(x1,t)
**7*x1**2*x2**9*a1**9*(130*a1**3*kc - 280*a1**2*a2*kc - 130*a1**2*b1*ka - 130*a1**2*b2*ka + 420*a1**2*b2*kc - 10*a1*a2**
2*kc - 38*a1*a2*b1*ka - 38*a1*a2*b2*ka + 100*a1*a2*b2*kc + 28*a1*b1*b2*ka + 28*a1*b2**2*ka - 80*a1*b2**2*kc - 3*a2**2*b1
*ka - 3*a2**2*b2*ka + 3*a2*b1*b2*ka + 3*a2*b2**2*ka) + 33*df(x1,t)**7*x1**2*x2**8*a1**8*vm*( - 800*a1**3*ka + 1440*a1**2
*a2*ka + 1650*a1**2*b1*ka + 1890*a1**2*b2*ka - 7098*a1**2*b2*kc + 990*a1*a2**2*ka + 1818*a1*a2*b1*ka + 1440*a1*a2*b2*ka 
- 1547*a1*a2*b2*kc - 390*a1*b1*b2*ka - 390*a1*b2**2*ka + 1274*a1*b2**2*kc + 24*a2**3*ka + 168*a2**2*b1*ka + 96*a2**2*b2*
ka - 104*a2**2*b2*kc - 208*a2*b1*b2*ka - 208*a2*b2**2*ka + 104*a2*b2**2*kc) + 1001*df(x1,t)**7*x1*x2**10*a1**10*( - 28*
a1**2*kc + 61*a1*a2*kc + 28*a1*b1*ka + 28*a1*b2*ka - 90*a1*b2*kc + a2**2*kc + 4*a2*b1*ka + 4*a2*b2*ka - 10*a2*b2*kc - 3*
b1*b2*ka - 3*b2**2*ka + 8*b2**2*kc) + 11*df(x1,t)**7*x1*x2**9*a1**9*vm*(760*a1**2*ka - 1665*a1*a2*ka - 1430*a1*b1*ka - 
1560*a1*b2*ka + 5096*a1*b2*kc - 423*a2**2*ka - 702*a2*b1*ka - 468*a2*b2*ka + 546*a2*b2*kc + 182*b1*b2*ka + 182*b2**2*ka 
- 455*b2**2*kc) + 546*df(x1,t)**7*x2**11*a1**11*(5*a1*kc - 11*a2*kc - 5*b1*ka - 5*b2*ka + 16*b2*kc) + 286*df(x1,t)**7*x2
**10*a1**10*vm*( - 4*a1*ka + 10*a2*ka + 7*b1*ka + 7*b2*ka - 21*b2*kc) + 91*df(x1,t)**6*x1**12*a1**10*( - 2*a1**3*kc + a1
**2*a2*kc + 2*a1**2*b1*ka + 2*a1**2*b2*ka - 10*a1**2*b2*kc + 11*a1*a2**2*kc + 11*a1*a2*b1*ka + 11*a1*a2*b2*ka - 66*a1*a2
*b2*kc - 4*a1*b1*b2*ka - 4*a1*b2**2*ka + 48*a1*b2**2*kc + 22*a2**2*b1*ka + 22*a2**2*b2*ka - 22*a2*b1*b2*ka - 22*a2*b2**2
*ka) + 91*df(x1,t)**6*x1**11*x2*a1**10*(32*a1**3*kc - 41*a1**2*a2*kc - 32*a1**2*b1*ka - 32*a1**2*b2*ka + 150*a1**2*b2*kc
 - 121*a1*a2**2*kc - 132*a1*a2*b1*ka - 132*a1*a2*b2*ka + 726*a1*a2*b2*kc + 55*a1*b1*b2*ka + 55*a1*b2**2*ka - 528*a1*b2**
2*kc - 220*a2**2*b1*ka - 220*a2**2*b2*ka + 220*a2*b1*b2*ka + 220*a2*b2**2*ka) + df(x1,t)**6*x1**11*a1**8*vm*(2*a1**4*ka 
+ 134*a1**3*a2*ka + 2*a1**3*b1*ka - 306*a1**3*b2*ka - 728*a1**3*b2*kc - 690*a1**2*a2**2*ka + 330*a1**2*a2*b1*ka + 1485*
a1**2*a2*b2*ka - 2002*a1**2*a2*b2*kc + 374*a1**2*b1*b2*ka + 374*a1**2*b2**2*ka + 1001*a1**2*b2**2*kc + 1047*a1*a2**3*ka 
+ 1980*a1*a2**2*b1*ka + 495*a1*a2**2*b2*ka - 3003*a1*a2**2*b2*kc - 1683*a1*a2*b1*b2*ka - 1683*a1*a2*b2**2*ka + 3003*a1*
a2*b2**2*kc - 588*a2**4*ka + 924*a2**3*b1*ka + 1980*a2**3*b2*ka - 1056*a2**2*b1*b2*ka - 1056*a2**2*b2**2*ka) + 5005*df(
x1,t)**6*x1**10*x2**2*a1**10*( - 4*a1**3*kc + 7*a1**2*a2*kc + 4*a1**2*b1*ka + 4*a1**2*b2*ka - 18*a1**2*b2*kc + 11*a1*a2
**2*kc + 13*a1*a2*b1*ka + 13*a1*a2*b2*ka - 66*a1*a2*b2*kc - 6*a1*b1*b2*ka - 6*a1*b2**2*ka + 48*a1*b2**2*kc + 18*a2**2*b1
*ka + 18*a2**2*b2*ka - 18*a2*b1*b2*ka - 18*a2*b2**2*ka) + df(x1,t)**6*x1**10*x2*a1**8*vm*( - 48*a1**4*ka - 984*a1**3*a2*
ka - 88*a1**3*b1*ka + 3432*a1**3*b2*ka + 10010*a1**3*b2*kc + 6455*a1**2*a2**2*ka - 5280*a1**2*a2*b1*ka - 18700*a1**2*a2*
b2*ka + 22022*a1**2*a2*b2*kc - 3850*a1**2*b1*b2*ka - 3850*a1**2*b2**2*ka - 12012*a1**2*b2**2*kc - 9927*a1*a2**3*ka - 
20592*a1*a2**2*b1*ka - 5940*a1*a2**2*b2*ka + 27027*a1*a2**2*b2*kc + 18612*a1*a2*b1*b2*ka + 18612*a1*a2*b2**2*ka - 27027*
a1*a2*b2**2*kc + 4704*a2**4*ka - 7392*a2**3*b1*ka - 15840*a2**3*b2*ka + 8448*a2**2*b1*b2*ka + 8448*a2**2*b2**2*ka) + 
5005*df(x1,t)**6*x1**9*x2**3*a1**10*(16*a1**3*kc - 33*a1**2*a2*kc - 16*a1**2*b1*ka - 16*a1**2*b2*ka + 70*a1**2*b2*kc - 
33*a1*a2**2*kc - 42*a1*a2*b1*ka - 42*a1*a2*b2*ka + 198*a1*a2*b2*kc + 21*a1*b1*b2*ka + 21*a1*b2**2*ka - 144*a1*b2**2*kc -
 48*a2**2*b1*ka - 48*a2**2*b2*ka + 48*a2*b1*b2*ka + 48*a2*b2**2*ka) + df(x1,t)**6*x1**9*x2**2*a1**8*vm*(300*a1**4*ka + 
1750*a1**3*a2*ka + 1100*a1**3*b1*ka - 15400*a1**3*b2*ka - 60060*a1**3*b2*kc - 23445*a1**2*a2**2*ka + 34650*a1**2*a2*b1*
ka + 99000*a1**2*a2*b2*ka - 108108*a1**2*a2*b2*kc + 16335*a1**2*b1*b2*ka + 16335*a1**2*b2**2*ka + 63063*a1**2*b2**2*kc +
 41724*a1*a2**3*ka + 93456*a1*a2**2*b1*ka + 29700*a1*a2**2*b2*ka - 108108*a1*a2**2*b2*kc - 88308*a1*a2*b1*b2*ka - 88308*
a1*a2*b2**2*ka + 108108*a1*a2*b2**2*kc - 16464*a2**4*ka + 25872*a2**3*b1*ka + 55440*a2**3*b2*ka - 29568*a2**2*b1*b2*ka -
 29568*a2**2*b2**2*ka) + 30030*df(x1,t)**6*x1**8*x2**4*a1**10*( - 7*a1**3*kc + 16*a1**2*a2*kc + 7*a1**2*b1*ka + 7*a1**2*
b2*ka - 30*a1**2*b2*kc + 11*a1*a2**2*kc + 15*a1*a2*b1*ka + 15*a1*a2*b2*ka - 66*a1*a2*b2*kc - 8*a1*b1*b2*ka - 8*a1*b2**2*
ka + 48*a1*b2**2*kc + 14*a2**2*b1*ka + 14*a2**2*b2*ka - 14*a2*b1*b2*ka - 14*a2*b2**2*ka) + 6*df(x1,t)**6*x1**8*x2**3*a1
**8*vm*( - 100*a1**4*ka + 700*a1**3*a2*ka - 1100*a1**3*b1*ka + 5940*a1**3*b2*ka + 35035*a1**3*b2*kc + 6330*a1**2*a2**2*
ka - 21120*a1**2*a2*b1*ka - 49500*a1**2*a2*b2*ka + 52052*a1**2*a2*b2*kc - 6160*a1**2*b1*b2*ka - 6160*a1**2*b2**2*ka - 
32032*a1**2*b2**2*kc - 17010*a1*a2**3*ka - 40656*a1*a2**2*b1*ka - 13860*a1*a2**2*b2*ka + 42042*a1*a2**2*b2*kc + 39732*a1
*a2*b1*b2*ka + 39732*a1*a2*b2**2*ka - 42042*a1*a2*b2**2*kc + 5488*a2**4*ka - 8624*a2**3*b1*ka - 18480*a2**3*b2*ka + 9856
*a2**2*b1*b2*ka + 9856*a2**2*b2**2*ka) + 6006*df(x1,t)**6*x1**7*x2**5*a1**10*(64*a1**3*kc - 157*a1**2*a2*kc - 64*a1**2*
b1*ka - 64*a1**2*b2*ka + 270*a1**2*b2*kc - 77*a1*a2**2*kc - 112*a1*a2*b1*ka - 112*a1*a2*b2*ka + 462*a1*a2*b2*kc + 63*a1*
b1*b2*ka + 63*a1*b2**2*ka - 336*a1*b2**2*kc - 84*a2**2*b1*ka - 84*a2**2*b2*ka + 84*a2*b1*b2*ka + 84*a2*b2**2*ka) + 6*df(
x1,t)**6*x1**7*x2**4*a1**8*vm*( - 150*a1**4*ka - 3790*a1**3*a2*ka + 3850*a1**3*b1*ka - 6930*a1**3*b2*ka - 80080*a1**3*b2
*kc - 1120*a1**2*a2**2*ka + 48510*a1**2*a2*b1*ka + 94325*a1**2*a2*b2*ka - 98098*a1**2*a2*b2*kc + 7700*a1**2*b1*b2*ka + 
7700*a1**2*b2**2*ka + 63063*a1**2*b2**2*kc + 26691*a1*a2**3*ka + 67452*a1*a2**2*b1*ka + 24255*a1*a2**2*b2*ka - 63063*a1*
a2**2*b2*kc - 67683*a1*a2*b1*b2*ka - 67683*a1*a2*b2**2*ka + 63063*a1*a2*b2**2*kc - 6860*a2**4*ka + 10780*a2**3*b1*ka + 
23100*a2**3*b2*ka - 12320*a2**2*b1*b2*ka - 12320*a2**2*b2**2*ka) + 42042*df(x1,t)**6*x1**6*x2**6*a1**10*( - 12*a1**3*kc 
+ 31*a1**2*a2*kc + 12*a1**2*b1*ka + 12*a1**2*b2*ka - 50*a1**2*b2*kc + 11*a1*a2**2*kc + 17*a1*a2*b1*ka + 17*a1*a2*b2*ka -
 66*a1*a2*b2*kc - 10*a1*b1*b2*ka - 10*a1*b2**2*ka + 48*a1*b2**2*kc + 10*a2**2*b1*ka + 10*a2**2*b2*ka - 10*a2*b1*b2*ka - 
10*a2*b2**2*ka) + 42*df(x1,t)**6*x1**6*x2**5*a1**8*vm*(168*a1**4*ka + 936*a1**3*a2*ka - 1232*a1**3*b1*ka + 176*a1**3*b2*
ka + 18018*a1**3*b2*kc - 1995*a1**2*a2**2*ka - 10560*a1**2*a2*b1*ka - 17160*a1**2*a2*b2*ka + 18018*a1**2*a2*b2*kc - 594*
a1**2*b1*b2*ka - 594*a1**2*b2**2*ka - 12012*a1**2*b2**2*kc - 3981*a1*a2**3*ka - 10560*a1*a2**2*b1*ka - 3960*a1*a2**2*b2*
ka + 9009*a1*a2**2*b2*kc + 10824*a1*a2*b1*b2*ka + 10824*a1*a2*b2**2*ka - 9009*a1*a2*b2**2*kc + 784*a2**4*ka - 1232*a2**3
*b1*ka - 2640*a2**3*b2*ka + 1408*a2**2*b1*b2*ka + 1408*a2**2*b2**2*ka) + 30030*df(x1,t)**6*x1**5*x2**7*a1**10*(16*a1**3*
kc - 43*a1**2*a2*kc - 16*a1**2*b1*ka - 16*a1**2*b2*ka + 66*a1**2*b2*kc - 11*a1*a2**2*kc - 18*a1*a2*b1*ka - 18*a1*a2*b2*
ka + 66*a1*a2*b2*kc + 11*a1*b1*b2*ka + 11*a1*b2**2*ka - 48*a1*b2**2*kc - 8*a2**2*b1*ka - 8*a2**2*b2*ka + 8*a2*b1*b2*ka +
 8*a2*b2**2*ka) + 42*df(x1,t)**6*x1**5*x2**6*a1**8*vm*( - 392*a1**4*ka - 666*a1**3*a2*ka + 1848*a1**3*b1*ka + 1188*a1**3
*b2*ka - 20020*a1**3*b2*kc + 3885*a1**2*a2**2*ka + 10890*a1**2*a2*b1*ka + 14850*a1**2*a2*b2*ka - 16016*a1**2*a2*b2*kc - 
275*a1**2*b1*b2*ka - 275*a1**2*b2**2*ka + 11011*a1**2*b2**2*kc + 2766*a1*a2**3*ka + 7656*a1*a2**2*b1*ka + 2970*a1*a2**2*
b2*ka - 6006*a1*a2**2*b2*kc - 7986*a1*a2*b1*b2*ka - 7986*a1*a2*b2**2*ka + 6006*a1*a2*b2**2*kc - 392*a2**4*ka + 616*a2**3
*b1*ka + 1320*a2**3*b2*ka - 704*a2**2*b1*b2*ka - 704*a2**2*b2**2*ka) + 15015*df(x1,t)**6*x1**4*x2**8*a1**10*( - 22*a1**3
*kc + 61*a1**2*a2*kc + 22*a1**2*b1*ka + 22*a1**2*b2*ka - 90*a1**2*b2*kc + 11*a1*a2**2*kc + 19*a1*a2*b1*ka + 19*a1*a2*b2*
ka - 66*a1*a2*b2*kc - 12*a1*b1*b2*ka - 12*a1*b2**2*ka + 48*a1*b2**2*kc + 6*a2**2*b1*ka + 6*a2**2*b2*ka - 6*a2*b1*b2*ka -
 6*a2*b2**2*ka) + 12*df(x1,t)**6*x1**4*x2**7*a1**8*vm*(1800*a1**4*ka - 500*a1**3*a2*ka - 6600*a1**3*b1*ka - 6600*a1**3*
b2*ka + 55055*a1**3*b2*kc - 13015*a1**2*a2**2*ka - 26400*a1**2*a2*b1*ka - 30250*a1**2*a2*b2*ka + 34034*a1**2*a2*b2*kc + 
2420*a1**2*b1*b2*ka + 2420*a1**2*b2**2*ka - 24024*a1**2*b2**2*kc - 4317*a1*a2**3*ka - 12408*a1*a2**2*b1*ka - 4950*a1*a2
**2*b2*ka + 9009*a1*a2**2*b2*kc + 13134*a1*a2*b1*b2*ka + 13134*a1*a2*b2**2*ka - 9009*a1*a2*b2**2*kc + 392*a2**4*ka - 616
*a2**3*b1*ka - 1320*a2**3*b2*ka + 704*a2**2*b1*b2*ka + 704*a2**2*b2**2*ka) + 5005*df(x1,t)**6*x1**3*x2**9*a1**10*(32*a1
**3*kc - 91*a1**2*a2*kc - 32*a1**2*b1*ka - 32*a1**2*b2*ka + 130*a1**2*b2*kc - 11*a1*a2**2*kc - 20*a1*a2*b1*ka - 20*a1*a2
*b2*ka + 66*a1*a2*b2*kc + 13*a1*b1*b2*ka + 13*a1*b2**2*ka - 48*a1*b2**2*kc - 4*a2**2*b1*ka - 4*a2**2*b2*ka + 4*a2*b1*b2*
ka + 4*a2*b2**2*ka) + 3*df(x1,t)**6*x1**3*x2**8*a1**8*vm*( - 5850*a1**4*ka + 9050*a1**3*a2*ka + 18150*a1**3*b1*ka + 
20570*a1**3*b2*ka - 120120*a1**3*b2*kc + 28590*a1**2*a2**2*ka + 47190*a1**2*a2*b1*ka + 45375*a1**2*a2*b2*ka - 54054*a1**
2*a2*b2*kc - 6930*a1**2*b1*b2*ka - 6930*a1**2*b2**2*ka + 39039*a1**2*b2**2*kc + 4485*a1*a2**3*ka + 13332*a1*a2**2*b1*ka 
+ 5445*a1*a2**2*b2*ka - 9009*a1*a2**2*b2*kc - 14289*a1*a2*b1*b2*ka - 14289*a1*a2*b2**2*ka + 9009*a1*a2*b2**2*kc - 196*a2
**4*ka + 308*a2**3*b1*ka + 660*a2**3*b2*ka - 352*a2**2*b1*b2*ka - 352*a2**2*b2**2*ka) + 1001*df(x1,t)**6*x1**2*x2**10*a1
**10*( - 52*a1**3*kc + 151*a1**2*a2*kc + 52*a1**2*b1*ka + 52*a1**2*b2*ka - 210*a1**2*b2*kc + 11*a1*a2**2*kc + 21*a1*a2*
b1*ka + 21*a1*a2*b2*ka - 66*a1*a2*b2*kc - 14*a1*b1*b2*ka - 14*a1*b2**2*ka + 48*a1*b2**2*kc + 2*a2**2*b1*ka + 2*a2**2*b2*
ka - 2*a2*b1*b2*ka - 2*a2*b2**2*ka) + 11*df(x1,t)**6*x1**2*x2**9*a1**9*vm*(800*a1**3*ka - 1960*a1**2*a2*ka - 2200*a1**2*
b1*ka - 2520*a1**2*b2*ka + 11830*a1**2*b2*kc - 2355*a1*a2**2*ka - 3360*a1*a2*b1*ka - 2700*a1*a2*b2*ka + 3458*a1*a2*b2*kc
 + 650*a1*b1*b2*ka + 650*a1*b2**2*ka - 2548*a1*b2**2*kc - 141*a2**3*ka - 432*a2**2*b1*ka - 180*a2**2*b2*ka + 273*a2**2*
b2*kc + 468*a2*b1*b2*ka + 468*a2*b2**2*ka - 273*a2*b2**2*kc) + 91*df(x1,t)**6*x1*x2**11*a1**11*(112*a1**2*kc - 331*a1*a2
*kc - 112*a1*b1*ka - 112*a1*b2*ka + 450*a1*b2*kc - 11*a2**2*kc - 22*a2*b1*ka - 22*a2*b2*ka + 66*a2*b2*kc + 15*b1*b2*ka +
 15*b2**2*ka - 48*b2**2*kc) + 11*df(x1,t)**6*x1*x2**10*a1**10*vm*( - 228*a1**2*ka + 714*a1*a2*ka + 572*a1*b1*ka + 624*a1
*b2*ka - 2548*a1*b2*kc + 305*a2**2*ka + 390*a2*b1*ka + 260*a2*b2*ka - 364*a2*b2*kc - 91*b1*b2*ka - 91*b2**2*ka + 273*b2
**2*kc) + 910*df(x1,t)**6*x2**12*a1**12*( - a1*kc + 3*a2*kc + b1*ka + b2*ka - 4*b2*kc) + 26*df(x1,t)**6*x2**11*a1**11*vm
*(12*a1*ka - 44*a2*ka - 28*b1*ka - 28*b2*ka + 105*b2*kc) + 7*df(x1,t)**5*x1**13*a1**11*( - 4*a1**3*kc - 13*a1**2*a2*kc +
 4*a1**2*b1*ka + 4*a1**2*b2*ka - 30*a1**2*b2*kc + 91*a1*a2**2*kc + 52*a1*a2*b1*ka + 52*a1*a2*b2*ka - 390*a1*a2*b2*kc - 
13*a1*b1*b2*ka - 13*a1*b2**2*ka + 260*a1*b2**2*kc + 143*a2**2*b1*ka + 143*a2**2*b2*ka - 143*a2*b1*b2*ka - 143*a2*b2**2*
ka) + 91*df(x1,t)**5*x1**12*x2*a1**11*(6*a1**3*kc + 2*a1**2*a2*kc - 6*a1**2*b1*ka - 6*a1**2*b2*ka + 40*a1**2*b2*kc - 84*
a1*a2**2*kc - 52*a1*a2*b1*ka - 52*a1*a2*b2*ka + 360*a1*a2*b2*kc + 16*a1*b1*b2*ka + 16*a1*b2**2*ka - 240*a1*b2**2*kc - 
121*a2**2*b1*ka - 121*a2**2*b2*ka + 121*a2*b1*b2*ka + 121*a2*b2**2*ka) + df(x1,t)**5*x1**12*a1**9*vm*(40*a1**3*a2*ka - 
64*a1**3*b2*ka - 182*a1**3*b2*kc - 256*a1**2*a2**2*ka + 66*a1**2*a2*b1*ka + 330*a1**2*a2*b2*ka - 1001*a1**2*a2*b2*kc + 
120*a1**2*b1*b2*ka + 120*a1**2*b2**2*ka + 364*a1**2*b2**2*kc + 460*a1*a2**3*ka + 990*a1*a2**2*b1*ka + 605*a1*a2**2*b2*ka
 - 2002*a1*a2**2*b2*kc - 605*a1*a2*b1*b2*ka - 605*a1*a2*b2**2*ka + 2002*a1*a2*b2**2*kc - 336*a2**4*ka + 924*a2**3*b1*ka 
+ 1485*a2**3*b2*ka - 1089*a2**2*b1*b2*ka - 1089*a2**2*b2**2*ka) + 91*df(x1,t)**5*x1**11*x2**2*a1**11*( - 48*a1**3*kc + 
54*a1**2*a2*kc + 48*a1**2*b1*ka + 48*a1**2*b2*ka - 300*a1**2*b2*kc + 462*a1*a2**2*kc + 308*a1*a2*b1*ka + 308*a1*a2*b2*ka
 - 1980*a1*a2*b2*kc - 110*a1*b1*b2*ka - 110*a1*b2**2*ka + 1320*a1*b2**2*kc + 605*a2**2*b1*ka + 605*a2**2*b2*ka - 605*a2*
b1*b2*ka - 605*a2*b2**2*ka) + df(x1,t)**5*x1**11*x2*a1**9*vm*( - 4*a1**4*ka - 426*a1**3*a2*ka - 6*a1**3*b1*ka + 918*a1**
3*b2*ka + 2912*a1**3*b2*kc + 3250*a1**2*a2**2*ka - 1386*a1**2*a2*b1*ka - 5874*a1**2*a2*b2*ka + 12012*a1**2*a2*b2*kc - 
1496*a1**2*b1*b2*ka - 1496*a1**2*b2**2*ka - 5005*a1**2*b2**2*kc - 5680*a1*a2**3*ka - 11880*a1*a2**2*b1*ka - 6325*a1*a2**
2*b2*ka + 20020*a1*a2**2*b2*kc + 8305*a1*a2*b1*b2*ka + 8305*a1*a2*b2**2*ka - 20020*a1*a2*b2**2*kc + 3024*a2**4*ka - 8316
*a2**3*b1*ka - 13365*a2**3*b2*ka + 9801*a2**2*b1*b2*ka + 9801*a2**2*b2**2*ka) + 5005*df(x1,t)**5*x1**10*x2**3*a1**11*(4*
a1**3*kc - 8*a1**2*a2*kc - 4*a1**2*b1*ka - 4*a1**2*b2*ka + 24*a1**2*b2*kc - 28*a1*a2**2*kc - 20*a1*a2*b1*ka - 20*a1*a2*
b2*ka + 120*a1*a2*b2*kc + 8*a1*b1*b2*ka + 8*a1*b2**2*ka - 80*a1*b2**2*kc - 33*a2**2*b1*ka - 33*a2**2*b2*ka + 33*a2*b1*b2
*ka + 33*a2*b2**2*ka) + df(x1,t)**5*x1**10*x2**2*a1**9*vm*(48*a1**4*ka + 1512*a1**3*a2*ka + 132*a1**3*b1*ka - 5148*a1**3
*b2*ka - 20020*a1**3*b2*kc - 16080*a1**2*a2**2*ka + 11220*a1**2*a2*b1*ka + 39160*a1**2*a2*b2*ka - 65065*a1**2*a2*b2*kc +
 7700*a1**2*b1*b2*ka + 7700*a1**2*b2**2*ka + 30030*a1**2*b2**2*kc + 30420*a1*a2**3*ka + 62370*a1*a2**2*b1*ka + 29700*a1*
a2**2*b2*ka - 90090*a1*a2**2*b2*kc - 47520*a1*a2*b1*b2*ka - 47520*a1*a2*b2**2*ka + 90090*a1*a2*b2**2*kc - 12096*a2**4*ka
 + 33264*a2**3*b1*ka + 53460*a2**3*b2*ka - 39204*a2**2*b1*b2*ka - 39204*a2**2*b2**2*ka) + 5005*df(x1,t)**5*x1**9*x2**4*
a1**11*( - 12*a1**3*kc + 31*a1**2*a2*kc + 12*a1**2*b1*ka + 12*a1**2*b2*ka - 70*a1**2*b2*kc + 63*a1*a2**2*kc + 48*a1*a2*
b1*ka + 48*a1*a2*b2*ka - 270*a1*a2*b2*kc - 21*a1*b1*b2*ka - 21*a1*b2**2*ka + 180*a1*b2**2*kc + 66*a2**2*b1*ka + 66*a2**2
*b2*ka - 66*a2*b1*b2*ka - 66*a2*b2**2*ka) + df(x1,t)**5*x1**9*x2**3*a1**9*vm*( - 200*a1**4*ka - 1350*a1**3*a2*ka - 1100*
a1**3*b1*ka + 15400*a1**3*b2*ka + 80080*a1**3*b2*kc + 40710*a1**2*a2**2*ka - 49500*a1**2*a2*b1*ka - 142560*a1**2*a2*b2*
ka + 210210*a1**2*a2*b2*kc - 21780*a1**2*b1*b2*ka - 21780*a1**2*b2**2*ka - 105105*a1**2*b2**2*kc - 94080*a1*a2**3*ka - 
190080*a1*a2**2*b1*ka - 82500*a1*a2**2*b2*ka + 240240*a1*a2**2*b2*kc + 153780*a1*a2*b1*b2*ka + 153780*a1*a2*b2**2*ka - 
240240*a1*a2*b2**2*kc + 28224*a2**4*ka - 77616*a2**3*b1*ka - 124740*a2**3*b2*ka + 91476*a2**2*b1*b2*ka + 91476*a2**2*b2
**2*ka) + 6006*df(x1,t)**5*x1**8*x2**5*a1**11*(21*a1**3*kc - 63*a1**2*a2*kc - 21*a1**2*b1*ka - 21*a1**2*b2*ka + 120*a1**
2*b2*kc - 84*a1*a2**2*kc - 68*a1*a2*b1*ka - 68*a1*a2*b2*ka + 360*a1*a2*b2*kc + 32*a1*b1*b2*ka + 32*a1*b2**2*ka - 240*a1*
b2**2*kc - 77*a2**2*b1*ka - 77*a2**2*b2*ka + 77*a2*b1*b2*ka + 77*a2*b2**2*ka) + 6*df(x1,t)**5*x1**8*x2**4*a1**9*vm*(50*
a1**4*ka - 900*a1**3*a2*ka + 825*a1**3*b1*ka - 4455*a1**3*b2*ka - 35035*a1**3*b2*kc - 8720*a1**2*a2**2*ka + 22770*a1**2*
a2*b1*ka + 54450*a1**2*a2*b2*ka - 75075*a1**2*a2*b2*kc + 6160*a1**2*b1*b2*ka + 6160*a1**2*b2**2*ka + 40040*a1**2*b2**2*
kc + 31220*a1*a2**3*ka + 62370*a1*a2**2*b1*ka + 25025*a1*a2**2*b2*ka - 70070*a1*a2**2*b2*kc - 52745*a1*a2*b1*b2*ka - 
52745*a1*a2*b2**2*ka + 70070*a1*a2*b2**2*kc - 7056*a2**4*ka + 19404*a2**3*b1*ka + 31185*a2**3*b2*ka - 22869*a2**2*b1*b2*
ka - 22869*a2**2*b2**2*ka) + 6006*df(x1,t)**5*x1**7*x2**6*a1**11*( - 32*a1**3*kc + 106*a1**2*a2*kc + 32*a1**2*b1*ka + 32
*a1**2*b2*ka - 180*a1**2*b2*kc + 98*a1*a2**2*kc + 84*a1*a2*b1*ka + 84*a1*a2*b2*ka - 420*a1*a2*b2*kc - 42*a1*b1*b2*ka - 
42*a1*b2**2*ka + 280*a1*b2**2*kc + 77*a2**2*b1*ka + 77*a2**2*b2*ka - 77*a2*b1*b2*ka - 77*a2*b2**2*ka) + 6*df(x1,t)**5*x1
**7*x2**5*a1**9*vm*(60*a1**4*ka + 3210*a1**3*a2*ka - 2310*a1**3*b1*ka + 4158*a1**3*b2*ka + 64064*a1**3*b2*kc + 2142*a1**
2*a2**2*ka - 42042*a1**2*a2*b1*ka - 83930*a1**2*a2*b2*ka + 112112*a1**2*a2*b2*kc - 6160*a1**2*b1*b2*ka - 6160*a1**2*b2**
2*ka - 63063*a1**2*b2**2*kc - 42000*a1*a2**3*ka - 83160*a1*a2**2*b1*ka - 31185*a1*a2**2*b2*ka + 84084*a1*a2**2*b2*kc + 
72765*a1*a2*b1*b2*ka + 72765*a1*a2*b2**2*ka - 84084*a1*a2*b2**2*kc + 7056*a2**4*ka - 19404*a2**3*b1*ka - 31185*a2**3*b2*
ka + 22869*a2**2*b1*b2*ka + 22869*a2**2*b2**2*ka) + 6006*df(x1,t)**5*x1**6*x2**7*a1**11*(36*a1**3*kc - 128*a1**2*a2*kc -
 36*a1**2*b1*ka - 36*a1**2*b2*ka + 200*a1**2*b2*kc - 84*a1*a2**2*kc - 76*a1*a2*b1*ka - 76*a1*a2*b2*ka + 360*a1*a2*b2*kc 
+ 40*a1*b1*b2*ka + 40*a1*b2**2*ka - 240*a1*b2**2*kc - 55*a2**2*b1*ka - 55*a2**2*b2*ka + 55*a2*b1*b2*ka + 55*a2*b2**2*ka)
 + 42*df(x1,t)**5*x1**6*x2**6*a1**9*vm*( - 56*a1**4*ka - 664*a1**3*a2*ka + 616*a1**3*b1*ka - 88*a1**3*b2*ka - 12012*a1**
3*b2*kc + 1600*a1**2*a2**2*ka + 7656*a1**2*a2*b1*ka + 12804*a1**2*a2*b2*ka - 17017*a1**2*a2*b2*kc + 396*a1**2*b1*b2*ka +
 396*a1**2*b2**2*ka + 10010*a1**2*b2**2*kc + 5540*a1*a2**3*ka + 10890*a1*a2**2*b1*ka + 3850*a1*a2**2*b2*ka - 10010*a1*a2
**2*b2*kc - 9790*a1*a2*b1*b2*ka - 9790*a1*a2*b2**2*ka + 10010*a1*a2*b2**2*kc - 672*a2**4*ka + 1848*a2**3*b1*ka + 2970*a2
**3*b2*ka - 2178*a2**2*b1*b2*ka - 2178*a2**2*b2**2*ka) + 15015*df(x1,t)**5*x1**5*x2**8*a1**11*( - 12*a1**3*kc + 45*a1**2
*a2*kc + 12*a1**2*b1*ka + 12*a1**2*b2*ka - 66*a1**2*b2*kc + 21*a1*a2**2*kc + 20*a1*a2*b1*ka + 20*a1*a2*b2*ka - 90*a1*a2*
b2*kc - 11*a1*b1*b2*ka - 11*a1*b2**2*ka + 60*a1*b2**2*kc + 11*a2**2*b1*ka + 11*a2**2*b2*ka - 11*a2*b1*b2*ka - 11*a2*b2**
2*ka) + 6*df(x1,t)**5*x1**5*x2**7*a1**9*vm*(784*a1**4*ka + 3246*a1**3*a2*ka - 5544*a1**3*b1*ka - 3564*a1**3*b2*ka + 
80080*a1**3*b2*kc - 19870*a1**2*a2**2*ka - 47520*a1**2*a2*b1*ka - 66660*a1**2*a2*b2*ka + 90090*a1**2*a2*b2*kc + 1100*a1
**2*b1*b2*ka + 1100*a1**2*b2**2*ka - 55055*a1**2*b2**2*kc - 24320*a1*a2**3*ka - 47520*a1*a2**2*b1*ka - 15950*a1*a2**2*b2
*ka + 40040*a1*a2**2*b2*kc + 43670*a1*a2*b1*b2*ka + 43670*a1*a2*b2**2*ka - 40040*a1*a2*b2**2*kc + 2016*a2**4*ka - 5544*
a2**3*b1*ka - 8910*a2**3*b2*ka + 6534*a2**2*b1*b2*ka + 6534*a2**2*b2**2*ka) + 5005*df(x1,t)**5*x1**4*x2**9*a1**11*(22*a1
**3*kc - 86*a1**2*a2*kc - 22*a1**2*b1*ka - 22*a1**2*b2*ka + 120*a1**2*b2*kc - 28*a1*a2**2*kc - 28*a1*a2*b1*ka - 28*a1*a2
*b2*ka + 120*a1*a2*b2*kc + 16*a1*b1*b2*ka + 16*a1*b2**2*ka - 80*a1*b2**2*kc - 11*a2**2*b1*ka - 11*a2**2*b2*ka + 11*a2*b1
*b2*ka + 11*a2*b2**2*ka) + 3*df(x1,t)**5*x1**4*x2**8*a1**9*vm*( - 1800*a1**4*ka - 600*a1**3*a2*ka + 9900*a1**3*b1*ka + 
9900*a1**3*b2*ka - 110110*a1**3*b2*kc + 34080*a1**2*a2**2*ka + 57750*a1**2*a2*b1*ka + 67870*a1**2*a2*b2*ka - 95095*a1**2
*a2*b2*kc - 4840*a1**2*b1*b2*ka - 4840*a1**2*b2**2*ka + 60060*a1**2*b2**2*kc + 19860*a1*a2**3*ka + 38610*a1*a2**2*b1*ka 
+ 12375*a1*a2**2*b2*ka - 30030*a1*a2**2*b2*kc - 36135*a1*a2*b1*b2*ka - 36135*a1*a2*b2**2*ka + 30030*a1*a2*b2**2*kc - 
1008*a2**4*ka + 2772*a2**3*b1*ka + 4455*a2**3*b2*ka - 3267*a2**2*b1*b2*ka - 3267*a2**2*b2**2*ka) + 1001*df(x1,t)**5*x1**
3*x2**10*a1**11*( - 48*a1**3*kc + 194*a1**2*a2*kc + 48*a1**2*b1*ka + 48*a1**2*b2*ka - 260*a1**2*b2*kc + 42*a1*a2**2*kc +
 44*a1*a2*b1*ka + 44*a1*a2*b2*ka - 180*a1*a2*b2*kc - 26*a1*b1*b2*ka - 26*a1*b2**2*ka + 120*a1*b2**2*kc + 11*a2**2*b1*ka 
+ 11*a2**2*b2*ka - 11*a2*b1*b2*ka - 11*a2*b2**2*ka) + df(x1,t)**5*x1**3*x2**9*a1**9*vm*(3900*a1**4*ka - 8050*a1**3*a2*ka
 - 18150*a1**3*b1*ka - 20570*a1**3*b2*ka + 160160*a1**3*b2*kc - 50630*a1**2*a2**2*ka - 68970*a1**2*a2*b1*ka - 67650*a1**
2*a2*b2*ka + 100100*a1**2*a2*b2*kc + 9240*a1**2*b1*b2*ka + 9240*a1**2*b2**2*ka - 65065*a1**2*b2**2*kc - 14320*a1*a2**3*
ka - 27720*a1*a2**2*b1*ka - 8525*a1*a2**2*b2*ka + 20020*a1*a2**2*b2*kc + 26345*a1*a2*b1*b2*ka + 26345*a1*a2*b2**2*ka - 
20020*a1*a2*b2**2*kc + 336*a2**4*ka - 924*a2**3*b1*ka - 1485*a2**3*b2*ka + 1089*a2**2*b1*b2*ka + 1089*a2**2*b2**2*ka) + 
91*df(x1,t)**5*x1**2*x2**11*a1**11*(156*a1**3*kc - 648*a1**2*a2*kc - 156*a1**2*b1*ka - 156*a1**2*b2*ka + 840*a1**2*b2*kc
 - 84*a1*a2**2*kc - 92*a1*a2*b1*ka - 92*a1*a2*b2*ka + 360*a1*a2*b2*kc + 56*a1*b1*b2*ka + 56*a1*b2**2*ka - 240*a1*b2**2*
kc - 11*a2**2*b1*ka - 11*a2**2*b2*ka + 11*a2*b1*b2*ka + 11*a2*b2**2*ka) + 11*df(x1,t)**5*x1**2*x2**10*a1**10*vm*( - 160*
a1**3*ka + 600*a1**2*a2*ka + 660*a1**2*b1*ka + 756*a1**2*b2*ka - 4732*a1**2*b2*kc + 1264*a1*a2**2*ka + 1476*a1*a2*b1*ka 
+ 1200*a1*a2*b2*ka - 1911*a1*a2*b2*kc - 260*a1*b1*b2*ka - 260*a1*b2**2*ka + 1274*a1*b2**2*kc + 140*a2**3*ka + 270*a2**2*
b1*ka + 80*a2**2*b2*ka - 182*a2**2*b2*kc - 260*a2*b1*b2*ka - 260*a2*b2**2*ka + 182*a2*b2**2*kc) + 91*df(x1,t)**5*x1*x2**
12*a1**12*( - 28*a1**2*kc + 119*a1*a2*kc + 28*a1*b1*ka + 28*a1*b2*ka - 150*a1*b2*kc + 7*a2**2*kc + 8*a2*b1*ka + 8*a2*b2*
ka - 30*a2*b2*kc - 5*b1*b2*ka - 5*b2**2*ka + 20*b2**2*kc) + df(x1,t)**5*x1*x2**11*a1**11*vm*(456*a1**2*ka - 2286*a1*a2*
ka - 1716*a1*b1*ka - 1872*a1*b2*ka + 10192*a1*b2*kc - 1650*a2**2*ka - 1716*a2*b1*ka - 1144*a2*b2*ka + 2002*a2*b2*kc + 
364*b1*b2*ka + 364*b2**2*ka - 1365*b2**2*kc) + 70*df(x1,t)**5*x2**13*a1**13*(3*a1*kc - 13*a2*kc - 3*b1*ka - 3*b2*ka + 16
*b2*kc) + 26*df(x1,t)**5*x2**12*a1**12*vm*( - 2*a1*ka + 12*a2*ka + 7*b1*ka + 7*b2*ka - 35*b2*kc) + df(x1,t)**4*x1**14*a1
**12*( - 2*a1**3*kc - 49*a1**2*a2*kc + 2*a1**2*b1*ka + 2*a1**2*b2*ka - 30*a1**2*b2*kc + 273*a1*a2**2*kc + 91*a1*a2*b1*ka
 + 91*a1*a2*b2*ka - 910*a1*a2*b2*kc - 14*a1*b1*b2*ka - 14*a1*b2**2*ka + 560*a1*b2**2*kc + 364*a2**2*b1*ka + 364*a2**2*b2
*ka - 364*a2*b1*b2*ka - 364*a2*b2**2*ka) + 7*df(x1,t)**4*x1**13*x2*a1**12*(8*a1**3*kc + 61*a1**2*a2*kc - 8*a1**2*b1*ka -
 8*a1**2*b2*ka + 90*a1**2*b2*kc - 507*a1*a2**2*kc - 182*a1*a2*b1*ka - 182*a1*a2*b2*ka + 1690*a1*a2*b2*kc + 39*a1*b1*b2*
ka + 39*a1*b2**2*ka - 1040*a1*b2**2*kc - 624*a2**2*b1*ka - 624*a2**2*b2*ka + 624*a2*b1*b2*ka + 624*a2*b2**2*ka) + df(x1,
t)**4*x1**13*a1**10*vm*(5*a1**3*a2*ka - 6*a1**3*b2*ka - 28*a1**3*b2*kc - 36*a1**2*a2**2*ka + 6*a1**2*a2*b1*ka - 364*a1**
2*a2*b2*kc + 23*a1**2*b1*b2*ka + 23*a1**2*b2**2*ka + 91*a1**2*b2**2*kc + 46*a1*a2**3*ka + 330*a1*a2**2*b1*ka + 440*a1*a2
**2*b2*ka - 1001*a1*a2**2*b2*kc - 110*a1*a2*b1*b2*ka - 110*a1*a2*b2**2*ka + 1001*a1*a2*b2**2*kc - 60*a2**4*ka + 660*a2**
3*b1*ka + 770*a2**3*b2*ka - 770*a2**2*b1*b2*ka - 770*a2**2*b2**2*ka) + 546*df(x1,t)**4*x1**12*x2**2*a1**12*( - a1**3*kc 
- 2*a1**2*a2*kc + a1**2*b1*ka + a1**2*b2*ka - 10*a1**2*b2*kc + 39*a1*a2**2*kc + 15*a1*a2*b1*ka + 15*a1*a2*b2*ka - 130*a1
*a2*b2*kc - 4*a1*b1*b2*ka - 4*a1*b2**2*ka + 80*a1*b2**2*kc + 44*a2**2*b1*ka + 44*a2**2*b2*ka - 44*a2*b1*b2*ka - 44*a2*b2
**2*ka) + df(x1,t)**4*x1**12*x2*a1**10*vm*( - 84*a1**3*a2*ka + 128*a1**3*b2*ka + 546*a1**3*b2*kc + 822*a1**2*a2**2*ka - 
204*a1**2*a2*b1*ka - 840*a1**2*a2*b2*ka + 4732*a1**2*a2*b2*kc - 360*a1**2*b1*b2*ka - 360*a1**2*b2**2*ka - 1456*a1**2*b2
**2*kc - 1406*a1*a2**3*ka - 4620*a1*a2**2*b1*ka - 4664*a1*a2**2*b2*ka + 11011*a1*a2**2*b2*kc + 2244*a1*a2*b1*b2*ka + 
2244*a1*a2*b2**2*ka - 11011*a1*a2*b2**2*kc + 600*a2**4*ka - 6600*a2**3*b1*ka - 7700*a2**3*b2*ka + 7700*a2**2*b1*b2*ka + 
7700*a2**2*b2**2*ka) + 182*df(x1,t)**4*x1**11*x2**3*a1**12*(16*a1**3*kc - 13*a1**2*a2*kc - 16*a1**2*b1*ka - 16*a1**2*b2*
ka + 150*a1**2*b2*kc - 429*a1*a2**2*kc - 176*a1*a2*b1*ka - 176*a1*a2*b2*ka + 1430*a1*a2*b2*kc + 55*a1*b1*b2*ka + 55*a1*
b2**2*ka - 880*a1*b2**2*kc - 440*a2**2*b1*ka - 440*a2**2*b2*ka + 440*a2*b1*b2*ka + 440*a2*b2**2*ka) + df(x1,t)**4*x1**11
*x2**2*a1**10*vm*(2*a1**4*ka + 450*a1**3*a2*ka + 6*a1**3*b1*ka - 918*a1**3*b2*ka - 4368*a1**3*b2*kc - 5706*a1**2*a2**2*
ka + 2178*a1**2*a2*b1*ka + 8712*a1**2*a2*b2*ka - 28028*a1**2*a2*b2*kc + 2244*a1**2*b1*b2*ka + 2244*a1**2*b2**2*ka + 
10010*a1**2*b2**2*kc + 11530*a1*a2**3*ka + 28050*a1*a2**2*b1*ka + 22440*a1*a2**2*b2*ka - 55055*a1*a2**2*b2*kc - 16390*a1
*a2*b1*b2*ka - 16390*a1*a2*b2**2*ka + 55055*a1*a2*b2**2*kc - 2700*a2**4*ka + 29700*a2**3*b1*ka + 34650*a2**3*b2*ka - 
34650*a2**2*b1*b2*ka - 34650*a2**2*b2**2*ka) + 5005*df(x1,t)**4*x1**10*x2**4*a1**12*( - 2*a1**3*kc + 5*a1**2*a2*kc + 2*
a1**2*b1*ka + 2*a1**2*b2*ka - 18*a1**2*b2*kc + 39*a1*a2**2*kc + 17*a1*a2*b1*ka + 17*a1*a2*b2*ka - 130*a1*a2*b2*kc - 6*a1
*b1*b2*ka - 6*a1*b2**2*ka + 80*a1*b2**2*kc + 36*a2**2*b1*ka + 36*a2**2*b2*ka - 36*a2*b1*b2*ka - 36*a2*b2**2*ka) + df(x1,
t)**4*x1**10*x2**3*a1**10*vm*( - 16*a1**4*ka - 1032*a1**3*a2*ka - 88*a1**3*b1*ka + 3432*a1**3*b2*ka + 20020*a1**3*b2*kc 
+ 19770*a1**2*a2**2*ka - 11880*a1**2*a2*b1*ka - 40920*a1**2*a2*b2*ka + 100100*a1**2*a2*b2*kc - 7700*a1**2*b1*b2*ka - 
7700*a1**2*b2**2*ka - 40040*a1**2*b2**2*kc - 48090*a1*a2**3*ka - 99000*a1*a2**2*b1*ka - 64680*a1*a2**2*b2*ka + 165165*a1
*a2**2*b2*kc + 64680*a1*a2*b1*b2*ka + 64680*a1*a2*b2**2*ka - 165165*a1*a2*b2**2*kc + 7200*a2**4*ka - 79200*a2**3*b1*ka -
 92400*a2**3*b2*ka + 92400*a2**2*b1*b2*ka + 92400*a2**2*b2**2*ka) + 3003*df(x1,t)**4*x1**9*x2**5*a1**12*(8*a1**3*kc - 29
*a1**2*a2*kc - 8*a1**2*b1*ka - 8*a1**2*b2*ka + 70*a1**2*b2*kc - 117*a1*a2**2*kc - 54*a1*a2*b1*ka - 54*a1*a2*b2*ka + 390*
a1*a2*b2*kc + 21*a1*b1*b2*ka + 21*a1*b2**2*ka - 240*a1*b2**2*kc - 96*a2**2*b1*ka - 96*a2**2*b2*ka + 96*a2*b1*b2*ka + 96*
a2*b2**2*ka) + 5*df(x1,t)**4*x1**9*x2**4*a1**10*vm*(10*a1**4*ka + 95*a1**3*a2*ka + 110*a1**3*b1*ka - 1540*a1**3*b2*ka - 
12012*a1**3*b2*kc - 7794*a1**2*a2**2*ka + 7920*a1**2*a2*b1*ka + 22968*a1**2*a2*b2*ka - 48048*a1**2*a2*b2*kc + 3267*a1**2
*b1*b2*ka + 3267*a1**2*b2**2*ka + 21021*a1**2*b2**2*kc + 24636*a1*a2**3*ka + 45540*a1*a2**2*b1*ka + 24816*a1*a2**2*b2*ka
 - 66066*a1*a2**2*b2*kc - 32076*a1*a2*b1*b2*ka - 32076*a1*a2*b2**2*ka + 66066*a1*a2*b2**2*kc - 2520*a2**4*ka + 27720*a2
**3*b1*ka + 32340*a2**3*b2*ka - 32340*a2**2*b1*b2*ka - 32340*a2**2*b2**2*ka) + 6006*df(x1,t)**4*x1**8*x2**6*a1**12*( - 7
*a1**3*kc + 31*a1**2*a2*kc + 7*a1**2*b1*ka + 7*a1**2*b2*ka - 60*a1**2*b2*kc + 78*a1*a2**2*kc + 38*a1*a2*b1*ka + 38*a1*a2
*b2*ka - 260*a1*a2*b2*kc - 16*a1*b1*b2*ka - 16*a1*b2**2*ka + 160*a1*b2**2*kc + 56*a2**2*b1*ka + 56*a2**2*b2*ka - 56*a2*
b1*b2*ka - 56*a2*b2**2*ka) + 6*df(x1,t)**4*x1**8*x2**5*a1**10*vm*( - 10*a1**4*ka + 510*a1**3*a2*ka - 330*a1**3*b1*ka + 
1782*a1**3*b2*ka + 21021*a1**3*b2*kc + 7002*a1**2*a2**2*ka - 14652*a1**2*a2*b1*ka - 35640*a1**2*a2*b2*ka + 68068*a1**2*
a2*b2*kc - 3696*a1**2*b1*b2*ka - 3696*a1**2*b2**2*ka - 32032*a1**2*b2**2*kc - 35042*a1*a2**3*ka - 60060*a1*a2**2*b1*ka -
 27720*a1*a2**2*b2*ka + 77077*a1*a2**2*b2*kc + 44660*a1*a2*b1*b2*ka + 44660*a1*a2*b2**2*ka - 77077*a1*a2*b2**2*kc + 2520
*a2**4*ka - 27720*a2**3*b1*ka - 32340*a2**3*b2*ka + 32340*a2**2*b1*b2*ka + 32340*a2**2*b2**2*ka) + 1716*df(x1,t)**4*x1**
7*x2**7*a1**12*(32*a1**3*kc - 161*a1**2*a2*kc - 32*a1**2*b1*ka - 32*a1**2*b2*ka + 270*a1**2*b2*kc - 273*a1*a2**2*kc - 
140*a1*a2*b1*ka - 140*a1*a2*b2*ka + 910*a1*a2*b2*kc + 63*a1*b1*b2*ka + 63*a1*b2**2*ka - 560*a1*b2**2*kc - 168*a2**2*b1*
ka - 168*a2**2*b2*ka + 168*a2*b1*b2*ka + 168*a2*b2**2*ka) + 6*df(x1,t)**4*x1**7*x2**6*a1**10*vm*( - 10*a1**4*ka - 1382*
a1**3*a2*ka + 770*a1**3*b1*ka - 1386*a1**3*b2*ka - 32032*a1**3*b2*kc - 1974*a1**2*a2**2*ka + 22638*a1**2*a2*b1*ka + 
46200*a1**2*a2*b2*ka - 84084*a1**2*a2*b2*kc + 3080*a1**2*b1*b2*ka + 3080*a1**2*b2**2*ka + 42042*a1**2*b2**2*kc + 41342*
a1*a2**3*ka + 66990*a1*a2**2*b1*ka + 26488*a1*a2**2*b2*ka - 77077*a1*a2**2*b2*kc - 51898*a1*a2*b1*b2*ka - 51898*a1*a2*b2
**2*ka + 77077*a1*a2*b2**2*kc - 2100*a2**4*ka + 23100*a2**3*b1*ka + 26950*a2**3*b2*ka - 26950*a2**2*b1*b2*ka - 26950*a2
**2*b2**2*ka) + 9009*df(x1,t)**4*x1**6*x2**8*a1**12*( - 6*a1**3*kc + 33*a1**2*a2*kc + 6*a1**2*b1*ka + 6*a1**2*b2*ka - 50
*a1**2*b2*kc + 39*a1*a2**2*kc + 21*a1*a2*b1*ka + 21*a1*a2*b2*ka - 130*a1*a2*b2*kc - 10*a1*b1*b2*ka - 10*a1*b2**2*ka + 80
*a1*b2**2*kc + 20*a2**2*b1*ka + 20*a2**2*b2*ka - 20*a2*b1*b2*ka - 20*a2*b2**2*ka) + 6*df(x1,t)**4*x1**6*x2**7*a1**10*vm*
(56*a1**4*ka + 1720*a1**3*a2*ka - 1232*a1**3*b1*ka + 176*a1**3*b2*ka + 36036*a1**3*b2*kc - 5538*a1**2*a2**2*ka - 24816*
a1**2*a2*b1*ka - 42504*a1**2*a2*b2*ka + 76076*a1**2*a2*b2*kc - 1188*a1**2*b1*b2*ka - 1188*a1**2*b2**2*ka - 40040*a1**2*
b2**2*kc - 34030*a1*a2**3*ka - 52800*a1*a2**2*b1*ka - 18040*a1*a2**2*b2*ka + 55055*a1*a2**2*b2*kc + 42240*a1*a2*b1*b2*ka
 + 42240*a1*a2*b2**2*ka - 55055*a1*a2*b2**2*kc + 1200*a2**4*ka - 13200*a2**3*b1*ka - 15400*a2**3*b2*ka + 15400*a2**2*b1*
b2*ka + 15400*a2**2*b2**2*ka) + 5005*df(x1,t)**4*x1**5*x2**9*a1**12*(8*a1**3*kc - 47*a1**2*a2*kc - 8*a1**2*b1*ka - 8*a1
**2*b2*ka + 66*a1**2*b2*kc - 39*a1*a2**2*kc - 22*a1*a2*b1*ka - 22*a1*a2*b2*ka + 130*a1*a2*b2*kc + 11*a1*b1*b2*ka + 11*a1
*b2**2*ka - 80*a1*b2**2*kc - 16*a2**2*b1*ka - 16*a2**2*b2*ka + 16*a2*b1*b2*ka + 16*a2*b2**2*ka) + 3*df(x1,t)**4*x1**5*x2
**8*a1**10*vm*( - 196*a1**4*ka - 2247*a1**3*a2*ka + 2772*a1**3*b1*ka + 1782*a1**3*b2*ka - 60060*a1**3*b2*kc + 18360*a1**
2*a2**2*ka + 38610*a1**2*a2*b1*ka + 55440*a1**2*a2*b2*ka - 100100*a1**2*a2*b2*kc - 825*a1**2*b1*b2*ka - 825*a1**2*b2**2*
ka + 55055*a1**2*b2**2*kc + 38530*a1*a2**3*ka + 57750*a1*a2**2*b1*ka + 17160*a1*a2**2*b2*ka - 55055*a1*a2**2*b2*kc - 
47410*a1*a2*b1*b2*ka - 47410*a1*a2*b2**2*ka + 55055*a1*a2*b2**2*kc - 900*a2**4*ka + 9900*a2**3*b1*ka + 11550*a2**3*b2*ka
 - 11550*a2**2*b1*b2*ka - 11550*a2**2*b2**2*ka) + 2002*df(x1,t)**4*x1**4*x2**10*a1**12*( - 11*a1**3*kc + 68*a1**2*a2*kc 
+ 11*a1**2*b1*ka + 11*a1**2*b2*ka - 90*a1**2*b2*kc + 39*a1*a2**2*kc + 23*a1*a2*b1*ka + 23*a1*a2*b2*ka - 130*a1*a2*b2*kc 
- 12*a1*b1*b2*ka - 12*a1*b2**2*ka + 80*a1*b2**2*kc + 12*a2**2*b1*ka + 12*a2**2*b2*ka - 12*a2*b1*b2*ka - 12*a2*b2**2*ka) 
+ 5*df(x1,t)**4*x1**4*x2**9*a1**10*vm*(120*a1**4*ka + 260*a1**3*a2*ka - 1320*a1**3*b1*ka - 1320*a1**3*b2*ka + 22022*a1**
3*b2*kc - 8586*a1**2*a2**2*ka - 12540*a1**2*a2*b1*ka - 15048*a1**2*a2*b2*ka + 28028*a1**2*a2*b2*kc + 968*a1**2*b1*b2*ka 
+ 968*a1**2*b2**2*ka - 16016*a1**2*b2**2*kc - 8606*a1*a2**3*ka - 12540*a1*a2**2*b1*ka - 3256*a1*a2**2*b2*ka + 11011*a1*
a2**2*b2*kc + 10516*a1*a2*b1*b2*ka + 10516*a1*a2*b2**2*ka - 11011*a1*a2*b2**2*kc + 120*a2**4*ka - 1320*a2**3*b1*ka - 
1540*a2**3*b2*ka + 1540*a2**2*b1*b2*ka + 1540*a2**2*b2**2*ka) + 546*df(x1,t)**4*x1**3*x2**11*a1**12*(16*a1**3*kc - 103*
a1**2*a2*kc - 16*a1**2*b1*ka - 16*a1**2*b2*ka + 130*a1**2*b2*kc - 39*a1*a2**2*kc - 24*a1*a2*b1*ka - 24*a1*a2*b2*ka + 130
*a1*a2*b2*kc + 13*a1*b1*b2*ka + 13*a1*b2**2*ka - 80*a1*b2**2*kc - 8*a2**2*b1*ka - 8*a2**2*b2*ka + 8*a2*b1*b2*ka + 8*a2*
b2**2*ka) + df(x1,t)**4*x1**3*x2**10*a1**10*vm*( - 390*a1**4*ka + 1410*a1**3*a2*ka + 3630*a1**3*b1*ka + 4114*a1**3*b2*ka
 - 48048*a1**3*b2*kc + 19374*a1**2*a2**2*ka + 22506*a1**2*a2*b1*ka + 22440*a1**2*a2*b2*ka - 44044*a1**2*a2*b2*kc - 2772*
a1**2*b1*b2*ka - 2772*a1**2*b2**2*ka + 26026*a1**2*b2**2*kc + 9506*a1*a2**3*ka + 13530*a1*a2**2*b1*ka + 3080*a1*a2**2*b2
*ka - 11011*a1*a2**2*b2*kc - 11550*a1*a2*b1*b2*ka - 11550*a1*a2*b2**2*ka + 11011*a1*a2*b2**2*kc - 60*a2**4*ka + 660*a2**
3*b1*ka + 770*a2**3*b2*ka - 770*a2**2*b1*b2*ka - 770*a2**2*b2**2*ka) + 91*df(x1,t)**4*x1**2*x2**12*a1**12*( - 26*a1**3*
kc + 173*a1**2*a2*kc + 26*a1**2*b1*ka + 26*a1**2*b2*ka - 210*a1**2*b2*kc + 39*a1*a2**2*kc + 25*a1*a2*b1*ka + 25*a1*a2*b2
*ka - 130*a1*a2*b2*kc - 14*a1*b1*b2*ka - 14*a1*b2**2*ka + 80*a1*b2**2*kc + 4*a2**2*b1*ka + 4*a2**2*b2*ka - 4*a2*b1*b2*ka
 - 4*a2*b2**2*ka) + df(x1,t)**4*x1**2*x2**11*a1**11*vm*(160*a1**3*ka - 1224*a1**2*a2*ka - 1320*a1**2*b1*ka - 1512*a1**2*
b2*ka + 14196*a1**2*b2*kc - 4878*a1*a2**2*ka - 4824*a1*a2*b1*ka - 3960*a1*a2*b2*ka + 8372*a1*a2*b2*kc + 780*a1*b1*b2*ka 
+ 780*a1*b2**2*ka - 5096*a1*b2**2*kc - 946*a2**3*ka - 1320*a2**2*b1*ka - 264*a2**2*b2*ka + 1001*a2**2*b2*kc + 1144*a2*b1
*b2*ka + 1144*a2*b2**2*ka - 1001*a2*b2**2*kc) + 7*df(x1,t)**4*x1*x2**13*a1**13*(56*a1**2*kc - 383*a1*a2*kc - 56*a1*b1*ka
 - 56*a1*b2*ka + 450*a1*b2*kc - 39*a2**2*kc - 26*a2*b1*ka - 26*a2*b2*ka + 130*a2*b2*kc + 15*b1*b2*ka + 15*b2**2*ka - 80*
b2**2*kc) + df(x1,t)**4*x1*x2**12*a1**12*vm*( - 38*a1**2*ka + 405*a1*a2*ka + 286*a1*b1*ka + 312*a1*b2*ka - 2548*a1*b2*kc
 + 534*a2**2*ka + 468*a2*b1*ka + 312*a2*b2*ka - 728*a2*b2*kc - 91*b1*b2*ka - 91*b2**2*ka + 455*b2**2*kc) + 30*df(x1,t)**
4*x2**14*a1**14*( - a1*kc + 7*a2*kc + b1*ka + b2*ka - 8*b2*kc) + 2*df(x1,t)**4*x2**13*a1**13*vm*(2*a1*ka - 26*a2*ka - 14
*b1*ka - 14*b2*ka + 105*b2*kc) + df(x1,t)**3*x1**15*a1**13*( - 11*a1**2*a2*kc - 2*a1**2*b2*kc + 77*a1*a2**2*kc + 14*a1*
a2*b1*ka + 14*a1*a2*b2*ka - 210*a1*a2*b2*kc - a1*b1*b2*ka - a1*b2**2*ka + 120*a1*b2**2*kc + 91*a2**2*b1*ka + 91*a2**2*b2
*ka - 91*a2*b1*b2*ka - 91*a2*b2**2*ka) + df(x1,t)**3*x1**14*x2*a1**13*(2*a1**3*kc + 124*a1**2*a2*kc - 2*a1**2*b1*ka - 2*
a1**2*b2*ka + 60*a1**2*b2*kc - 1078*a1*a2**2*kc - 210*a1*a2*b1*ka - 210*a1*a2*b2*ka + 2940*a1*a2*b2*kc + 28*a1*b1*b2*ka 
+ 28*a1*b2**2*ka - 1680*a1*b2**2*kc - 1183*a2**2*b1*ka - 1183*a2**2*b2*ka + 1183*a2*b1*b2*ka + 1183*a2*b2**2*ka) + df(x1
,t)**3*x1**14*a1**11*vm*( - 2*a1**3*b2*kc + 6*a1**2*a2**2*ka - 18*a1**2*a2*b2*ka - 91*a1**2*a2*b2*kc + 2*a1**2*b1*b2*ka 
+ 2*a1**2*b2**2*ka + 14*a1**2*b2**2*kc - 56*a1*a2**3*ka + 66*a1*a2**2*b1*ka + 192*a1*a2**2*b2*ka - 364*a1*a2**2*b2*kc + 
6*a1*a2*b1*b2*ka + 6*a1*a2*b2**2*ka + 364*a1*a2*b2**2*kc + 60*a2**4*ka + 330*a2**3*b1*ka + 264*a2**3*b2*ka - 374*a2**2*
b1*b2*ka - 374*a2**2*b2**2*ka) + 7*df(x1,t)**3*x1**13*x2**2*a1**13*( - 4*a1**3*kc - 83*a1**2*a2*kc + 4*a1**2*b1*ka + 4*
a1**2*b2*ka - 90*a1**2*b2*kc + 1001*a1*a2**2*kc + 208*a1*a2*b1*ka + 208*a1*a2*b2*ka - 2730*a1*a2*b2*kc - 39*a1*b1*b2*ka 
- 39*a1*b2**2*ka + 1560*a1*b2**2*kc + 1014*a2**2*b1*ka + 1014*a2**2*b2*ka - 1014*a2*b1*b2*ka - 1014*a2*b2**2*ka) + df(x1
,t)**3*x1**13*x2*a1**11*vm*( - 5*a1**3*a2*ka + 6*a1**3*b2*ka + 56*a1**3*b2*kc + 53*a1**2*a2**2*ka - 12*a1**2*a2*b1*ka + 
50*a1**2*a2*b2*ka + 1274*a1**2*a2*b2*kc - 46*a1**2*b1*b2*ka - 46*a1**2*b2**2*ka - 273*a1**2*b2**2*kc + 252*a1*a2**3*ka -
 1122*a1*a2**2*b1*ka - 2160*a1*a2**2*b2*ka + 4368*a1*a2**2*b2*kc + 246*a1*a2*b1*b2*ka + 246*a1*a2*b2**2*ka - 4368*a1*a2*
b2**2*kc - 660*a2**4*ka - 3630*a2**3*b1*ka - 2904*a2**3*b2*ka + 4114*a2**2*b1*b2*ka + 4114*a2**2*b2**2*ka) + 182*df(x1,t
)**3*x1**12*x2**3*a1**13*(a1**3*kc + 7*a1**2*a2*kc - a1**2*b1*ka - a1**2*b2*ka + 20*a1**2*b2*kc - 154*a1*a2**2*kc - 34*
a1*a2*b1*ka - 34*a1*a2*b2*ka + 420*a1*a2*b2*kc + 8*a1*b1*b2*ka + 8*a1*b2**2*ka - 240*a1*b2**2*kc - 143*a2**2*b1*ka - 143
*a2**2*b2*ka + 143*a2*b1*b2*ka + 143*a2*b2**2*ka) + 2*df(x1,t)**3*x1**12*x2**2*a1**11*vm*(22*a1**3*a2*ka - 32*a1**3*b2*
ka - 273*a1**3*b2*kc - 438*a1**2*a2**2*ka + 105*a1**2*a2*b1*ka + 345*a1**2*a2*b2*ka - 4095*a1**2*a2*b2*kc + 180*a1**2*b1
*b2*ka + 180*a1**2*b2**2*ka + 1092*a1**2*b2**2*kc + 462*a1*a2**3*ka + 3993*a1*a2**2*b1*ka + 5544*a1*a2**2*b2*ka - 12012*
a1*a2**2*b2*kc - 1551*a1*a2*b1*b2*ka - 1551*a1*a2*b2**2*ka + 12012*a1*a2*b2**2*kc + 1650*a2**4*ka + 9075*a2**3*b1*ka + 
7260*a2**3*b2*ka - 10285*a2**2*b1*b2*ka - 10285*a2**2*b2**2*ka) + 91*df(x1,t)**3*x1**11*x2**4*a1**13*( - 8*a1**3*kc - a1
**2*a2*kc + 8*a1**2*b1*ka + 8*a1**2*b2*ka - 150*a1**2*b2*kc + 847*a1*a2**2*kc + 198*a1*a2*b1*ka + 198*a1*a2*b2*ka - 2310
*a1*a2*b2*kc - 55*a1*b1*b2*ka - 55*a1*b2**2*ka + 1320*a1*b2**2*kc + 715*a2**2*b1*ka + 715*a2**2*b2*ka - 715*a2*b1*b2*ka 
- 715*a2*b2**2*ka) + 2*df(x1,t)**3*x1**11*x2**3*a1**11*vm*( - 79*a1**3*a2*ka - a1**3*b1*ka + 153*a1**3*b2*ka + 1456*a1**
3*b2*kc + 2211*a1**2*a2**2*ka - 759*a1**2*a2*b1*ka - 2871*a1**2*a2*b2*ka + 16016*a1**2*a2*b2*kc - 748*a1**2*b1*b2*ka - 
748*a1**2*b2**2*ka - 5005*a1**2*b2**2*kc - 5390*a1*a2**3*ka - 16335*a1*a2**2*b1*ka - 17160*a1*a2**2*b2*ka + 40040*a1*a2
**2*b2*kc + 8085*a1*a2*b1*b2*ka + 8085*a1*a2*b2**2*ka - 40040*a1*a2*b2**2*kc - 4950*a2**4*ka - 27225*a2**3*b1*ka - 21780
*a2**3*b2*ka + 30855*a2**2*b1*b2*ka + 30855*a2**2*b2**2*ka) + 1001*df(x1,t)**3*x1**10*x2**5*a1**13*(2*a1**3*kc - 8*a1**2
*a2*kc - 2*a1**2*b1*ka - 2*a1**2*b2*ka + 36*a1**2*b2*kc - 154*a1*a2**2*kc - 38*a1*a2*b1*ka - 38*a1*a2*b2*ka + 420*a1*a2*
b2*kc + 12*a1*b1*b2*ka + 12*a1*b2**2*ka - 240*a1*b2**2*kc - 117*a2**2*b1*ka - 117*a2**2*b2*ka + 117*a2*b1*b2*ka + 117*a2
*b2**2*ka) + 11*df(x1,t)**3*x1**10*x2**4*a1**11*vm*(24*a1**3*a2*ka + 2*a1**3*b1*ka - 78*a1**3*b2*ka - 910*a1**3*b2*kc - 
1090*a1**2*a2**2*ka + 570*a1**2*a2*b1*ka + 1940*a1**2*a2*b2*ka - 7735*a1**2*a2*b2*kc + 350*a1**2*b1*b2*ka + 350*a1**2*b2
**2*ka + 2730*a1**2*b2**2*kc + 3780*a1*a2**3*ka + 7920*a1*a2**2*b1*ka + 6480*a1*a2**2*b2*ka - 16380*a1*a2**2*b2*kc - 
4500*a1*a2*b1*b2*ka - 4500*a1*a2*b2**2*ka + 16380*a1*a2*b2**2*kc + 1800*a2**4*ka + 9900*a2**3*b1*ka + 7920*a2**3*b2*ka -
 11220*a2**2*b1*b2*ka - 11220*a2**2*b2**2*ka) + 1001*df(x1,t)**3*x1**9*x2**6*a1**13*( - 4*a1**3*kc + 27*a1**2*a2*kc + 4*
a1**2*b1*ka + 4*a1**2*b2*ka - 70*a1**2*b2*kc + 231*a1*a2**2*kc + 60*a1*a2*b1*ka + 60*a1*a2*b2*ka - 630*a1*a2*b2*kc - 21*
a1*b1*b2*ka - 21*a1*b2**2*ka + 360*a1*b2**2*kc + 156*a2**2*b1*ka + 156*a2**2*b2*ka - 156*a2*b1*b2*ka - 156*a2*b2**2*ka) 
+ 11*df(x1,t)**3*x1**9*x2**5*a1**11*vm*( - 5*a1**3*a2*ka - 10*a1**3*b1*ka + 140*a1**3*b2*ka + 2184*a1**3*b2*kc + 1773*a1
**2*a2**2*ka - 1530*a1**2*a2*b1*ka - 4464*a1**2*a2*b2*ka + 14742*a1**2*a2*b2*kc - 594*a1**2*b1*b2*ka - 594*a1**2*b2**2*
ka - 5733*a1**2*b2**2*kc - 8568*a1*a2**3*ka - 14652*a1*a2**2*b1*ka - 9504*a1*a2**2*b2*ka + 26208*a1*a2**2*b2*kc + 9108*
a1*a2*b1*b2*ka + 9108*a1*a2*b2**2*ka - 26208*a1*a2*b2**2*kc - 2520*a2**4*ka - 13860*a2**3*b1*ka - 11088*a2**3*b2*ka + 
15708*a2**2*b1*b2*ka + 15708*a2**2*b2**2*ka) + 858*df(x1,t)**3*x1**8*x2**7*a1**13*(7*a1**3*kc - 61*a1**2*a2*kc - 7*a1**2
*b1*ka - 7*a1**2*b2*ka + 120*a1**2*b2*kc - 308*a1*a2**2*kc - 84*a1*a2*b1*ka - 84*a1*a2*b2*ka + 840*a1*a2*b2*kc + 32*a1*
b1*b2*ka + 32*a1*b2**2*ka - 480*a1*b2**2*kc - 182*a2**2*b1*ka - 182*a2**2*b2*ka + 182*a2*b1*b2*ka + 182*a2*b2**2*ka) + 
66*df(x1,t)**3*x1**8*x2**6*a1**11*vm*( - 10*a1**3*a2*ka + 5*a1**3*b1*ka - 27*a1**3*b2*ka - 637*a1**3*b2*kc - 276*a1**2*
a2**2*ka + 474*a1**2*a2*b1*ka + 1170*a1**2*a2*b2*ka - 3458*a1**2*a2*b2*kc + 112*a1**2*b1*b2*ka + 112*a1**2*b2**2*ka + 
1456*a1**2*b2**2*kc + 2156*a1*a2**3*ka + 3234*a1*a2**2*b1*ka + 1680*a1*a2**2*b2*ka - 5096*a1*a2**2*b2*kc - 2142*a1*a2*b1
*b2*ka - 2142*a1*a2*b2**2*ka + 5096*a1*a2*b2**2*kc + 420*a2**4*ka + 2310*a2**3*b1*ka + 1848*a2**3*b2*ka - 2618*a2**2*b1*
b2*ka - 2618*a2**2*b2**2*ka) + 429*df(x1,t)**3*x1**7*x2**8*a1**13*( - 16*a1**3*kc + 163*a1**2*a2*kc + 16*a1**2*b1*ka + 
16*a1**2*b2*ka - 270*a1**2*b2*kc + 539*a1*a2**2*kc + 154*a1*a2*b1*ka + 154*a1*a2*b2*ka - 1470*a1*a2*b2*kc - 63*a1*b1*b2*
ka - 63*a1*b2**2*ka + 840*a1*b2**2*kc + 273*a2**2*b1*ka + 273*a2**2*b2*ka - 273*a2*b1*b2*ka - 273*a2*b2**2*ka) + 132*df(
x1,t)**3*x1**7*x2**7*a1**11*vm*(11*a1**3*a2*ka - 5*a1**3*b1*ka + 9*a1**3*b2*ka + 416*a1**3*b2*kc + 41*a1**2*a2**2*ka - 
315*a1**2*a2*b1*ka - 655*a1**2*a2*b2*ka + 1820*a1**2*a2*b2*kc - 40*a1**2*b1*b2*ka - 40*a1**2*b2**2*ka - 819*a1**2*b2**2*
kc - 1134*a1*a2**3*ka - 1551*a1*a2**2*b1*ka - 648*a1*a2**2*b2*ka + 2184*a1*a2**2*b2*kc + 1077*a1*a2*b1*b2*ka + 1077*a1*
a2*b2**2*ka - 2184*a1*a2*b2**2*kc - 150*a2**4*ka - 825*a2**3*b1*ka - 660*a2**3*b2*ka + 935*a2**2*b1*b2*ka + 935*a2**2*b2
**2*ka) + 1001*df(x1,t)**3*x1**6*x2**9*a1**13*(6*a1**3*kc - 68*a1**2*a2*kc - 6*a1**2*b1*ka - 6*a1**2*b2*ka + 100*a1**2*
b2*kc - 154*a1*a2**2*kc - 46*a1*a2*b1*ka - 46*a1*a2*b2*ka + 420*a1*a2*b2*kc + 20*a1*b1*b2*ka + 20*a1*b2**2*ka - 240*a1*
b2**2*kc - 65*a2**2*b1*ka - 65*a2**2*b2*ka + 65*a2*b1*b2*ka + 65*a2*b2**2*ka) + 33*df(x1,t)**3*x1**6*x2**8*a1**11*vm*( -
 48*a1**3*a2*ka + 28*a1**3*b1*ka - 4*a1**3*b2*ka - 1638*a1**3*b2*kc + 282*a1**2*a2**2*ka + 1212*a1**2*a2*b1*ka + 2118*a1
**2*a2*b2*ka - 5733*a1**2*a2*b2*kc + 54*a1**2*b1*b2*ka + 54*a1**2*b2**2*ka + 2730*a1**2*b2**2*kc + 3360*a1*a2**3*ka + 
4290*a1*a2**2*b1*ka + 1440*a1*a2**2*b2*ka - 5460*a1*a2**2*b2*kc - 3090*a1*a2*b1*b2*ka - 3090*a1*a2*b2**2*ka + 5460*a1*a2
*b2**2*kc + 300*a2**4*ka + 1650*a2**3*b1*ka + 1320*a2**3*b2*ka - 1870*a2**2*b1*b2*ka - 1870*a2**2*b2**2*ka) + 1001*df(x1
,t)**3*x1**5*x2**10*a1**13*( - 4*a1**3*kc + 49*a1**2*a2*kc + 4*a1**2*b1*ka + 4*a1**2*b2*ka - 66*a1**2*b2*kc + 77*a1*a2**
2*kc + 24*a1*a2*b1*ka + 24*a1*a2*b2*ka - 210*a1*a2*b2*kc - 11*a1*b1*b2*ka - 11*a1*b2**2*ka + 120*a1*b2**2*kc + 26*a2**2*
b1*ka + 26*a2**2*b2*ka - 26*a2*b1*b2*ka - 26*a2*b2**2*ka) + 11*df(x1,t)**3*x1**5*x2**9*a1**11*vm*(87*a1**3*a2*ka - 84*a1
**3*b1*ka - 54*a1**3*b2*ka + 3640*a1**3*b2*kc - 1335*a1**2*a2**2*ka - 2520*a1**2*a2*b1*ka - 3690*a1**2*a2*b2*ka + 10010*
a1**2*a2*b2*kc + 50*a1**2*b1*b2*ka + 50*a1**2*b2**2*ka - 5005*a1**2*b2**2*kc - 5180*a1*a2**3*ka - 6270*a1*a2**2*b1*ka - 
1680*a1*a2**2*b2*ka + 7280*a1*a2**2*b2*kc + 4650*a1*a2*b1*b2*ka + 4650*a1*a2*b2**2*ka - 7280*a1*a2*b2**2*kc - 300*a2**4*
ka - 1650*a2**3*b1*ka - 1320*a2**3*b2*ka + 1870*a2**2*b1*b2*ka + 1870*a2**2*b2**2*ka) + 182*df(x1,t)**3*x1**4*x2**11*a1
**13*(11*a1**3*kc - 143*a1**2*a2*kc - 11*a1**2*b1*ka - 11*a1**2*b2*ka + 180*a1**2*b2*kc - 154*a1*a2**2*kc - 50*a1*a2*b1*
ka - 50*a1*a2*b2*ka + 420*a1*a2*b2*kc + 24*a1*b1*b2*ka + 24*a1*b2**2*ka - 240*a1*b2**2*kc - 39*a2**2*b1*ka - 39*a2**2*b2
*ka + 39*a2*b1*b2*ka + 39*a2*b2**2*ka) + 22*df(x1,t)**3*x1**4*x2**10*a1**11*vm*( - 10*a1**3*a2*ka + 30*a1**3*b1*ka + 30*
a1**3*b2*ka - 1001*a1**3*b2*kc + 478*a1**2*a2**2*ka + 615*a1**2*a2*b1*ka + 751*a1**2*a2*b2*ka - 2093*a1**2*a2*b2*kc - 44
*a1**2*b1*b2*ka - 44*a1**2*b2**2*ka + 1092*a1**2*b2**2*kc + 882*a1*a2**3*ka + 1023*a1*a2**2*b1*ka + 216*a1*a2**2*b2*ka -
 1092*a1*a2**2*b2*kc - 777*a1*a2*b1*b2*ka - 777*a1*a2*b2**2*ka + 1092*a1*a2*b2**2*kc + 30*a2**4*ka + 165*a2**3*b1*ka + 
132*a2**3*b2*ka - 187*a2**2*b1*b2*ka - 187*a2**2*b2**2*ka) + 91*df(x1,t)**3*x1**3*x2**12*a1**13*( - 8*a1**3*kc + 109*a1
**2*a2*kc + 8*a1**2*b1*ka + 8*a1**2*b2*ka - 130*a1**2*b2*kc + 77*a1*a2**2*kc + 26*a1*a2*b1*ka + 26*a1*a2*b2*ka - 210*a1*
a2*b2*kc - 13*a1*b1*b2*ka - 13*a1*b2**2*ka + 120*a1*b2**2*kc + 13*a2**2*b1*ka + 13*a2**2*b2*ka - 13*a2*b1*b2*ka - 13*a2*
b2**2*ka) + 2*df(x1,t)**3*x1**3*x2**11*a1**11*vm*( - 55*a1**3*a2*ka - 165*a1**3*b1*ka - 187*a1**3*b2*ka + 4368*a1**3*b2*
kc - 2181*a1**2*a2**2*ka - 2211*a1**2*a2*b1*ka - 2235*a1**2*a2*b2*ka + 6552*a1**2*a2*b2*kc + 252*a1**2*b1*b2*ka + 252*a1
**2*b2**2*ka - 3549*a1**2*b2**2*kc - 1974*a1*a2**3*ka - 2211*a1*a2**2*b1*ka - 360*a1*a2**2*b2*ka + 2184*a1*a2**2*b2*kc +
 1713*a1*a2*b1*b2*ka + 1713*a1*a2*b2**2*ka - 2184*a1*a2*b2**2*kc - 30*a2**4*ka - 165*a2**3*b1*ka - 132*a2**3*b2*ka + 187
*a2**2*b1*b2*ka + 187*a2**2*b2**2*ka) + 7*df(x1,t)**3*x1**2*x2**13*a1**13*(26*a1**3*kc - 368*a1**2*a2*kc - 26*a1**2*b1*
ka - 26*a1**2*b2*ka + 420*a1**2*b2*kc - 154*a1*a2**2*kc - 54*a1*a2*b1*ka - 54*a1*a2*b2*ka + 420*a1*a2*b2*kc + 28*a1*b1*
b2*ka + 28*a1*b2**2*ka - 240*a1*b2**2*kc - 13*a2**2*b1*ka - 13*a2**2*b2*ka + 13*a2*b1*b2*ka + 13*a2*b2**2*ka) + df(x1,t)
**3*x1**2*x2**12*a1**12*vm*(104*a1**2*a2*ka + 110*a1**2*b1*ka + 126*a1**2*b2*ka - 2366*a1**2*b2*kc + 1014*a1*a2**2*ka + 
870*a1*a2*b1*ka + 720*a1*a2*b2*ka - 2275*a1*a2*b2*kc - 130*a1*b1*b2*ka - 130*a1*b2**2*ka + 1274*a1*b2**2*kc + 364*a2**3*
ka + 396*a2**2*b1*ka + 48*a2**2*b2*ka - 364*a2**2*b2*kc - 312*a2*b1*b2*ka - 312*a2*b2**2*ka + 364*a2*b2**2*kc) + df(x1,t
)**3*x1*x2**14*a1**14*( - 28*a1**2*kc + 409*a1*a2*kc + 28*a1*b1*ka + 28*a1*b2*ka - 450*a1*b2*kc + 77*a2**2*kc + 28*a2*b1
*ka + 28*a2*b2*ka - 210*a2*b2*kc - 15*b1*b2*ka - 15*b2**2*ka + 120*b2**2*kc) + df(x1,t)**3*x1*x2**13*a1**13*vm*( - 33*a1
*a2*ka - 22*a1*b1*ka - 24*a1*b2*ka + 392*a1*b2*kc - 103*a2**2*ka - 78*a2*b1*ka - 52*a2*b2*ka + 182*a2*b2*kc + 14*b1*b2*
ka + 14*b2**2*ka - 105*b2**2*kc) + 2*df(x1,t)**3*x2**15*a1**15*(a1*kc - 15*a2*kc - b1*ka - b2*ka + 16*b2*kc) + 2*df(x1,t
)**3*x2**14*a1**14*vm*(2*a2*ka + b1*ka + b2*ka - 15*b2*kc) + df(x1,t)**2*x1**16*a1**14*( - a1**2*a2*kc + 13*a1*a2**2*kc 
+ a1*a2*b1*ka + a1*a2*b2*ka - 30*a1*a2*b2*kc + 16*a1*b2**2*kc + 14*a2**2*b1*ka + 14*a2**2*b2*ka - 14*a2*b1*b2*ka - 14*a2
*b2**2*ka) + df(x1,t)**2*x1**15*x2*a1**14*(13*a1**2*a2*kc + 2*a1**2*b2*kc - 195*a1*a2**2*kc - 16*a1*a2*b1*ka - 16*a1*a2*
b2*ka + 450*a1*a2*b2*kc + a1*b1*b2*ka + a1*b2**2*ka - 240*a1*b2**2*kc - 196*a2**2*b1*ka - 196*a2**2*b2*ka + 196*a2*b1*b2
*ka + 196*a2*b2**2*ka) + df(x1,t)**2*x1**15*a1**12*vm*(2*a1**2*a2**2*ka - 3*a1**2*a2*b2*ka - 14*a1**2*a2*b2*kc + a1**2*
b2**2*kc - 27*a1*a2**3*ka + 6*a1*a2**2*b1*ka + 47*a1*a2**2*b2*ka - 91*a1*a2**2*b2*kc + 7*a1*a2*b1*b2*ka + 7*a1*a2*b2**2*
ka + 91*a1*a2*b2**2*kc + 50*a2**4*ka + 110*a2**3*b1*ka + 54*a2**3*b2*ka - 120*a2**2*b1*b2*ka - 120*a2**2*b2**2*ka) + df(
x1,t)**2*x1**14*x2**2*a1**14*( - 75*a1**2*a2*kc - 30*a1**2*b2*kc + 1365*a1*a2**2*kc + 119*a1*a2*b1*ka + 119*a1*a2*b2*ka 
- 3150*a1*a2*b2*kc - 14*a1*b1*b2*ka - 14*a1*b2**2*ka + 1680*a1*b2**2*kc + 1274*a2**2*b1*ka + 1274*a2**2*b2*ka - 1274*a2*
b1*b2*ka - 1274*a2*b2**2*ka) + df(x1,t)**2*x1**14*x2*a1**12*vm*(2*a1**3*b2*kc - 11*a1**2*a2**2*ka + 24*a1**2*a2*b2*ka + 
210*a1**2*a2*b2*kc - 2*a1**2*b1*b2*ka - 2*a1**2*b2**2*ka - 28*a1**2*b2**2*kc + 243*a1*a2**3*ka - 144*a1*a2**2*b1*ka - 
568*a1*a2**2*b2*ka + 1183*a1*a2**2*b2*kc - 32*a1*a2*b1*b2*ka - 32*a1*a2*b2**2*ka - 1183*a1*a2*b2**2*kc - 600*a2**4*ka - 
1320*a2**3*b1*ka - 648*a2**3*b2*ka + 1440*a2**2*b1*b2*ka + 1440*a2**2*b2**2*ka) + 7*df(x1,t)**2*x1**13*x2**3*a1**14*(35*
a1**2*a2*kc + 30*a1**2*b2*kc - 845*a1*a2**2*kc - 78*a1*a2*b1*ka - 78*a1*a2*b2*ka + 1950*a1*a2*b2*kc + 13*a1*b1*b2*ka + 
13*a1*b2**2*ka - 1040*a1*b2**2*kc - 728*a2**2*b1*ka - 728*a2**2*b2*ka + 728*a2*b1*b2*ka + 728*a2*b2**2*ka) + df(x1,t)**2
*x1**13*x2**2*a1**12*vm*( - 28*a1**3*b2*kc - 15*a1**2*a2**2*ka + 6*a1**2*a2*b1*ka - 50*a1**2*a2*b2*ka - 1456*a1**2*a2*b2
*kc + 23*a1**2*b1*b2*ka + 23*a1**2*b2**2*ka + 273*a1**2*b2**2*kc - 810*a1*a2**3*ka + 1260*a1*a2**2*b1*ka + 3150*a1*a2**2
*b2*ka - 7098*a1*a2**2*b2*kc - 162*a1*a2*b1*b2*ka - 162*a1*a2*b2**2*ka + 7098*a1*a2*b2**2*kc + 3300*a2**4*ka + 7260*a2**
3*b1*ka + 3564*a2**3*b2*ka - 7920*a2**2*b1*b2*ka - 7920*a2**2*b2**2*ka) + 91*df(x1,t)**2*x1**12*x2**4*a1**14*( - 5*a1**2
*a2*kc - 10*a1**2*b2*kc + 195*a1*a2**2*kc + 19*a1*a2*b1*ka + 19*a1*a2*b2*ka - 450*a1*a2*b2*kc - 4*a1*b1*b2*ka - 4*a1*b2
**2*ka + 240*a1*b2**2*kc + 154*a2**2*b1*ka + 154*a2**2*b2*ka - 154*a2*b1*b2*ka - 154*a2*b2**2*ka) + 2*df(x1,t)**2*x1**12
*x2**3*a1**12*vm*(91*a1**3*b2*kc + 155*a1**2*a2**2*ka - 36*a1**2*a2*b1*ka - 90*a1**2*a2*b2*ka + 3094*a1**2*a2*b2*kc - 60
*a1**2*b1*b2*ka - 60*a1**2*b2**2*ka - 728*a1**2*b2**2*kc + 297*a1*a2**3*ka - 3036*a1*a2**2*b1*ka - 5302*a1*a2**2*b2*ka +
 13013*a1*a2**2*b2*kc + 946*a1*a2*b1*b2*ka + 946*a1*a2*b2**2*ka - 13013*a1*a2*b2**2*kc - 5500*a2**4*ka - 12100*a2**3*b1*
ka - 5940*a2**3*b2*ka + 13200*a2**2*b1*b2*ka + 13200*a2**2*b2**2*ka) + 91*df(x1,t)**2*x1**11*x2**5*a1**14*(3*a1**2*a2*kc
 + 30*a1**2*b2*kc - 429*a1*a2**2*kc - 44*a1*a2*b1*ka - 44*a1*a2*b2*ka + 990*a1*a2*b2*kc + 11*a1*b1*b2*ka + 11*a1*b2**2*
ka - 528*a1*b2**2*kc - 308*a2**2*b1*ka - 308*a2**2*b2*ka + 308*a2*b1*b2*ka + 308*a2*b2**2*ka) + df(x1,t)**2*x1**11*x2**4
*a1**12*vm*( - 728*a1**3*b2*kc - 1276*a1**2*a2**2*ka + 396*a1**2*a2*b1*ka + 1419*a1**2*a2*b2*ka - 18018*a1**2*a2*b2*kc +
 374*a1**2*b1*b2*ka + 374*a1**2*b2**2*ka + 5005*a1**2*b2**2*kc + 4455*a1*a2**3*ka + 18810*a1*a2**2*b1*ka + 24145*a1*a2**
2*b2*ka - 65065*a1*a2**2*b2*kc - 7975*a1*a2*b1*b2*ka - 7975*a1*a2*b2**2*ka + 65065*a1*a2*b2**2*kc + 24750*a2**4*ka + 
54450*a2**3*b1*ka + 26730*a2**3*b2*ka - 59400*a2**2*b1*b2*ka - 59400*a2**2*b2**2*ka) + 1001*df(x1,t)**2*x1**10*x2**6*a1
**14*(a1**2*a2*kc - 6*a1**2*b2*kc + 65*a1*a2**2*kc + 7*a1*a2*b1*ka + 7*a1*a2*b2*ka - 150*a1*a2*b2*kc - 2*a1*b1*b2*ka - 2
*a1*b2**2*ka + 80*a1*b2**2*kc + 42*a2**2*b1*ka + 42*a2**2*b2*ka - 42*a2*b1*b2*ka - 42*a2*b2**2*ka) + 11*df(x1,t)**2*x1**
10*x2**5*a1**12*vm*(182*a1**3*b2*kc + 261*a1**2*a2**2*ka - 120*a1**2*a2*b1*ka - 404*a1**2*a2*b2*ka + 3458*a1**2*a2*b2*kc
 - 70*a1**2*b1*b2*ka - 70*a1**2*b2**2*ka - 1092*a1**2*b2**2*kc - 1701*a1*a2**3*ka - 3672*a1*a2**2*b1*ka - 3564*a1*a2**2*
b2*ka + 10647*a1*a2**2*b2*kc + 1836*a1*a2*b1*b2*ka + 1836*a1*a2*b2**2*ka - 10647*a1*a2*b2**2*kc - 3600*a2**4*ka - 7920*
a2**3*b1*ka - 3888*a2**3*b2*ka + 8640*a2**2*b1*b2*ka + 8640*a2**2*b2**2*ka) + 143*df(x1,t)**2*x1**9*x2**7*a1**14*( - 25*
a1**2*a2*kc + 70*a1**2*b2*kc - 585*a1*a2**2*kc - 66*a1*a2*b1*ka - 66*a1*a2*b2*ka + 1350*a1*a2*b2*kc + 21*a1*b1*b2*ka + 
21*a1*b2**2*ka - 720*a1*b2**2*kc - 336*a2**2*b1*ka - 336*a2**2*b2*ka + 336*a2*b1*b2*ka + 336*a2*b2**2*ka) + 11*df(x1,t)
**2*x1**9*x2**6*a1**12*vm*( - 364*a1**3*b2*kc - 363*a1**2*a2**2*ka + 270*a1**2*a2*b1*ka + 792*a1**2*a2*b2*ka - 5460*a1**
2*a2*b2*kc + 99*a1**2*b1*b2*ka + 99*a1**2*b2**2*ka + 1911*a1**2*b2**2*kc + 3564*a1*a2**3*ka + 5688*a1*a2**2*b1*ka + 4236
*a1*a2**2*b2*ka - 14196*a1*a2**2*b2*kc - 3156*a1*a2*b1*b2*ka - 3156*a1*a2*b2**2*ka + 14196*a1*a2*b2**2*kc + 4200*a2**4*
ka + 9240*a2**3*b1*ka + 4536*a2**3*b2*ka - 10080*a2**2*b1*b2*ka - 10080*a2**2*b2**2*ka) + 429*df(x1,t)**2*x1**8*x2**8*a1
**14*(15*a1**2*a2*kc - 30*a1**2*b2*kc + 195*a1*a2**2*kc + 23*a1*a2*b1*ka + 23*a1*a2*b2*ka - 450*a1*a2*b2*kc - 8*a1*b1*b2
*ka - 8*a1*b2**2*ka + 240*a1*b2**2*kc + 98*a2**2*b1*ka + 98*a2**2*b2*ka - 98*a2*b1*b2*ka - 98*a2*b2**2*ka) + 66*df(x1,t)
**2*x1**8*x2**7*a1**12*vm*(91*a1**3*b2*kc + 50*a1**2*a2**2*ka - 72*a1**2*a2*b1*ka - 180*a1**2*a2*b2*ka + 1092*a1**2*a2*
b2*kc - 16*a1**2*b1*b2*ka - 16*a1**2*b2**2*ka - 416*a1**2*b2**2*kc - 810*a1*a2**3*ka - 1080*a1*a2**2*b1*ka - 620*a1*a2**
2*b2*ka + 2366*a1*a2**2*b2*kc + 644*a1*a2*b1*b2*ka + 644*a1*a2*b2**2*ka - 2366*a1*a2*b2**2*kc - 600*a2**4*ka - 1320*a2**
3*b1*ka - 648*a2**3*b2*ka + 1440*a2**2*b1*b2*ka + 1440*a2**2*b2**2*ka) + 143*df(x1,t)**2*x1**7*x2**9*a1**14*( - 55*a1**2
*a2*kc + 90*a1**2*b2*kc - 455*a1*a2**2*kc - 56*a1*a2*b1*ka - 56*a1*a2*b2*ka + 1050*a1*a2*b2*kc + 21*a1*b1*b2*ka + 21*a1*
b2**2*ka - 560*a1*b2**2*kc - 196*a2**2*b1*ka - 196*a2**2*b2*ka + 196*a2*b1*b2*ka + 196*a2*b2**2*ka) + 33*df(x1,t)**2*x1
**7*x2**8*a1**12*vm*( - 208*a1**3*b2*kc - 30*a1**2*a2**2*ka + 168*a1**2*a2*b1*ka + 355*a1**2*a2*b2*ka - 2002*a1**2*a2*b2
*kc + 20*a1**2*b1*b2*ka + 20*a1**2*b2**2*ka + 819*a1**2*b2**2*kc + 1539*a1*a2**3*ka + 1818*a1*a2**2*b1*ka + 801*a1*a2**2
*b2*ka - 3549*a1*a2**2*b2*kc - 1143*a1*a2*b1*b2*ka - 1143*a1*a2*b2**2*ka + 3549*a1*a2*b2**2*kc + 750*a2**4*ka + 1650*a2
**3*b1*ka + 810*a2**3*b2*ka - 1800*a2**2*b1*b2*ka - 1800*a2**2*b2**2*ka) + 1001*df(x1,t)**2*x1**6*x2**10*a1**14*(7*a1**2
*a2*kc - 10*a1**2*b2*kc + 39*a1*a2**2*kc + 5*a1*a2*b1*ka + 5*a1*a2*b2*ka - 90*a1*a2*b2*kc - 2*a1*b1*b2*ka - 2*a1*b2**2*
ka + 48*a1*b2**2*kc + 14*a2**2*b1*ka + 14*a2**2*b2*ka - 14*a2*b1*b2*ka - 14*a2*b2**2*ka) + 11*df(x1,t)**2*x1**6*x2**9*a1
**12*vm*(546*a1**3*b2*kc - 103*a1**2*a2**2*ka - 432*a1**2*a2*b1*ka - 768*a1**2*a2*b2*ka + 4186*a1**2*a2*b2*kc - 18*a1**2
*b1*b2*ka - 18*a1**2*b2**2*ka - 1820*a1**2*b2**2*kc - 3105*a1*a2**3*ka - 3360*a1*a2**2*b1*ka - 1120*a1*a2**2*b2*ka + 
5915*a1*a2**2*b2*kc + 2200*a1*a2*b1*b2*ka + 2200*a1*a2*b2**2*ka - 5915*a1*a2*b2**2*kc - 1000*a2**4*ka - 2200*a2**3*b1*ka
 - 1080*a2**3*b2*ka + 2400*a2**2*b1*b2*ka + 2400*a2**2*b2**2*ka) + 91*df(x1,t)**2*x1**5*x2**11*a1**14*( - 51*a1**2*a2*kc
 + 66*a1**2*b2*kc - 195*a1*a2**2*kc - 26*a1*a2*b1*ka - 26*a1*a2*b2*ka + 450*a1*a2*b2*kc + 11*a1*b1*b2*ka + 11*a1*b2**2*
ka - 240*a1*b2**2*kc - 56*a2**2*b1*ka - 56*a2**2*b2*ka + 56*a2*b1*b2*ka + 56*a2*b2**2*ka) + 11*df(x1,t)**2*x1**5*x2**10*
a1**12*vm*( - 364*a1**3*b2*kc + 157*a1**2*a2**2*ka + 270*a1**2*a2*b1*ka + 402*a1**2*a2*b2*ka - 2184*a1**2*a2*b2*kc - 5*
a1**2*b1*b2*ka - 5*a1**2*b2**2*ka + 1001*a1**2*b2**2*kc + 1458*a1*a2**3*ka + 1476*a1*a2**2*b1*ka + 362*a1*a2**2*b2*ka - 
2366*a1*a2**2*b2*kc - 998*a1*a2*b1*b2*ka - 998*a1*a2*b2**2*ka + 2366*a1*a2*b2**2*kc + 300*a2**4*ka + 660*a2**3*b1*ka + 
324*a2**3*b2*ka - 720*a2**2*b1*b2*ka - 720*a2**2*b2**2*ka) + 91*df(x1,t)**2*x1**4*x2**12*a1**14*(25*a1**2*a2*kc - 30*a1
**2*b2*kc + 65*a1*a2**2*kc + 9*a1*a2*b1*ka + 9*a1*a2*b2*ka - 150*a1*a2*b2*kc - 4*a1*b1*b2*ka - 4*a1*b2**2*ka + 80*a1*b2
**2*kc + 14*a2**2*b1*ka + 14*a2**2*b2*ka - 14*a2*b1*b2*ka - 14*a2*b2**2*ka) + 2*df(x1,t)**2*x1**4*x2**11*a1**12*vm*(1001
*a1**3*b2*kc - 573*a1**2*a2**2*ka - 660*a1**2*a2*b1*ka - 818*a1**2*a2*b2*ka + 4550*a1**2*a2*b2*kc + 44*a1**2*b1*b2*ka + 
44*a1**2*b2**2*ka - 2184*a1**2*b2**2*kc - 2511*a1*a2**3*ka - 2412*a1*a2**2*b1*ka - 414*a1*a2**2*b2*ka + 3549*a1*a2**2*b2
*kc + 1674*a1*a2*b1*b2*ka + 1674*a1*a2*b2**2*ka - 3549*a1*a2*b2**2*kc - 300*a2**4*ka - 660*a2**3*b1*ka - 324*a2**3*b2*ka
 + 720*a2**2*b1*b2*ka + 720*a2**2*b2**2*ka) + 7*df(x1,t)**2*x1**3*x2**13*a1**14*( - 115*a1**2*a2*kc + 130*a1**2*b2*kc - 
195*a1*a2**2*kc - 28*a1*a2*b1*ka - 28*a1*a2*b2*ka + 450*a1*a2*b2*kc + 13*a1*b1*b2*ka + 13*a1*b2**2*ka - 240*a1*b2**2*kc 
- 28*a2**2*b1*ka - 28*a2**2*b2*ka + 28*a2*b1*b2*ka + 28*a2*b2**2*ka) + df(x1,t)**2*x1**3*x2**12*a1**12*vm*( - 728*a1**3*
b2*kc + 440*a1**2*a2**2*ka + 396*a1**2*a2*b1*ka + 405*a1**2*a2*b2*ka - 2366*a1**2*a2*b2*kc - 42*a1**2*b1*b2*ka - 42*a1**
2*b2**2*ka + 1183*a1**2*b2**2*kc + 945*a1*a2**3*ka + 870*a1*a2**2*b1*ka + 95*a1*a2**2*b2*ka - 1183*a1*a2**2*b2*kc - 617*
a1*a2*b1*b2*ka - 617*a1*a2*b2**2*ka + 1183*a1*a2*b2**2*kc + 50*a2**4*ka + 110*a2**3*b1*ka + 54*a2**3*b2*ka - 120*a2**2*
b1*b2*ka - 120*a2**2*b2**2*ka) + df(x1,t)**2*x1**2*x2**14*a1**14*(195*a1**2*a2*kc - 210*a1**2*b2*kc + 195*a1*a2**2*kc + 
29*a1*a2*b1*ka + 29*a1*a2*b2*ka - 450*a1*a2*b2*kc - 14*a1*b1*b2*ka - 14*a1*b2**2*ka + 240*a1*b2**2*kc + 14*a2**2*b1*ka +
 14*a2**2*b2*ka - 14*a2*b1*b2*ka - 14*a2*b2**2*ka) + df(x1,t)**2*x1**2*x2**13*a1**13*vm*(182*a1**2*b2*kc - 95*a1*a2**2*
ka - 72*a1*a2*b1*ka - 60*a1*a2*b2*ka + 378*a1*a2*b2*kc + 10*a1*b1*b2*ka + 10*a1*b2**2*ka - 196*a1*b2**2*kc - 81*a2**3*ka
 - 72*a2**2*b1*ka - 4*a2**2*b2*ka + 91*a2**2*b2*kc + 52*a2*b1*b2*ka + 52*a2*b2**2*ka - 91*a2*b2**2*kc) + df(x1,t)**2*x1*
x2**15*a1**15*( - 29*a1*a2*kc + 30*a1*b2*kc - 13*a2**2*kc - 2*a2*b1*ka - 2*a2*b2*ka + 30*a2*b2*kc + b1*b2*ka + b2**2*ka 
- 16*b2**2*kc) + df(x1,t)**2*x1*x2**14*a1**14*vm*( - 28*a1*b2*kc + 9*a2**2*ka + 6*a2*b1*ka + 4*a2*b2*ka - 28*a2*b2*kc - 
b1*b2*ka - b2**2*ka + 15*b2**2*kc) + 2*df(x1,t)**2*x2**16*a1**16*kc*(a2 - b2) + 2*df(x1,t)**2*x2**15*a1**15*b2*kc*vm + 
df(x1,t)*x1**17*a1**15*(a1*a2**2*kc - 2*a1*a2*b2*kc + a1*b2**2*kc + a2**2*b1*ka + a2**2*b2*ka - a2*b1*b2*ka - a2*b2**2*
ka) + df(x1,t)*x1**16*x2*a1**15*( - 16*a1*a2**2*kc + 32*a1*a2*b2*kc - 16*a1*b2**2*kc - 15*a2**2*b1*ka - 15*a2**2*b2*ka +
 15*a2*b1*b2*ka + 15*a2*b2**2*ka) + df(x1,t)*x1**16*a1**13*a2*vm*( - a1**2*b2*kc - 4*a1*a2**2*ka + 5*a1*a2*b2*ka - 14*a1
*a2*b2*kc + a1*b1*b2*ka + a1*b2**2*ka + 14*a1*b2**2*kc + 16*a2**3*ka + 22*a2**2*b1*ka + 5*a2**2*b2*ka - 23*a2*b1*b2*ka -
 23*a2*b2**2*ka) + 15*df(x1,t)*x1**15*x2**2*a1**15*(8*a1*a2**2*kc - 16*a1*a2*b2*kc + 8*a1*b2**2*kc + 7*a2**2*b1*ka + 7*
a2**2*b2*ka - 7*a2*b1*b2*ka - 7*a2*b2**2*ka) + df(x1,t)*x1**15*x2*a1**13*vm*(16*a1**2*a2*b2*kc - a1**2*b2**2*kc + 44*a1*
a2**3*ka - 6*a1*a2**2*b1*ka - 65*a1*a2**2*b2*ka + 196*a1*a2**2*b2*kc - 9*a1*a2*b1*b2*ka - 9*a1*a2*b2**2*ka - 196*a1*a2*
b2**2*kc - 208*a2**4*ka - 286*a2**3*b1*ka - 65*a2**3*b2*ka + 299*a2**2*b1*b2*ka + 299*a2**2*b2**2*ka) + 35*df(x1,t)*x1**
14*x2**3*a1**15*( - 16*a1*a2**2*kc + 32*a1*a2*b2*kc - 16*a1*b2**2*kc - 13*a2**2*b1*ka - 13*a2**2*b2*ka + 13*a2*b1*b2*ka 
+ 13*a2*b2**2*ka) + df(x1,t)*x1**14*x2**2*a1**13*vm*( - 119*a1**2*a2*b2*kc + 14*a1**2*b2**2*kc - 208*a1*a2**3*ka + 78*a1
*a2**2*b1*ka + 390*a1*a2**2*b2*ka - 1274*a1*a2**2*b2*kc + 26*a1*a2*b1*b2*ka + 26*a1*a2*b2**2*ka + 1274*a1*a2*b2**2*kc + 
1248*a2**4*ka + 1716*a2**3*b1*ka + 390*a2**3*b2*ka - 1794*a2**2*b1*b2*ka - 1794*a2**2*b2**2*ka) + 455*df(x1,t)*x1**13*x2
**4*a1**15*(4*a1*a2**2*kc - 8*a1*a2*b2*kc + 4*a1*b2**2*kc + 3*a2**2*b1*ka + 3*a2**2*b2*ka - 3*a2*b1*b2*ka - 3*a2*b2**2*
ka) + 13*df(x1,t)*x1**13*x2**3*a1**13*vm*(42*a1**2*a2*b2*kc - 7*a1**2*b2**2*kc + 40*a1*a2**3*ka - 36*a1*a2**2*b1*ka - 
110*a1*a2**2*b2*ka + 392*a1*a2**2*b2*kc + 2*a1*a2*b1*b2*ka + 2*a1*a2*b2**2*ka - 392*a1*a2*b2**2*kc - 352*a2**4*ka - 484*
a2**3*b1*ka - 110*a2**3*b2*ka + 506*a2**2*b1*b2*ka + 506*a2**2*b2**2*ka) + 273*df(x1,t)*x1**12*x2**5*a1**15*( - 16*a1*a2
**2*kc + 32*a1*a2*b2*kc - 16*a1*b2**2*kc - 11*a2**2*b1*ka - 11*a2**2*b2*ka + 11*a2*b1*b2*ka + 11*a2*b2**2*ka) + 13*df(x1
,t)*x1**12*x2**4*a1**13*vm*( - 133*a1**2*a2*b2*kc + 28*a1**2*b2**2*kc - 44*a1*a2**3*ka + 132*a1*a2**2*b1*ka + 275*a1*a2
**2*b2*ka - 1078*a1*a2**2*b2*kc - 33*a1*a2*b1*b2*ka - 33*a1*a2*b2**2*ka + 1078*a1*a2*b2**2*kc + 880*a2**4*ka + 1210*a2**
3*b1*ka + 275*a2**3*b2*ka - 1265*a2**2*b1*b2*ka - 1265*a2**2*b2**2*ka) + 1001*df(x1,t)*x1**11*x2**6*a1**15*(8*a1*a2**2*
kc - 16*a1*a2*b2*kc + 8*a1*b2**2*kc + 5*a2**2*b1*ka + 5*a2**2*b2*ka - 5*a2*b1*b2*ka - 5*a2*b2**2*ka) + 143*df(x1,t)*x1**
11*x2**5*a1**13*vm*(28*a1**2*a2*b2*kc - 7*a1**2*b2**2*kc - 4*a1*a2**3*ka - 30*a1*a2**2*b1*ka - 45*a1*a2**2*b2*ka + 196*
a1*a2**2*b2*kc + 11*a1*a2*b1*b2*ka + 11*a1*a2*b2**2*ka - 196*a1*a2*b2**2*kc - 144*a2**4*ka - 198*a2**3*b1*ka - 45*a2**3*
b2*ka + 207*a2**2*b1*b2*ka + 207*a2**2*b2**2*ka) + 715*df(x1,t)*x1**10*x2**7*a1**15*( - 16*a1*a2**2*kc + 32*a1*a2*b2*kc 
- 16*a1*b2**2*kc - 9*a2**2*b1*ka - 9*a2**2*b2*ka + 9*a2*b1*b2*ka + 9*a2*b2**2*ka) + 143*df(x1,t)*x1**10*x2**6*a1**13*vm*
( - 49*a1**2*a2*b2*kc + 14*a1**2*b2**2*kc + 24*a1*a2**3*ka + 54*a1*a2**2*b1*ka + 60*a1*a2**2*b2*ka - 294*a1*a2**2*b2*kc 
- 24*a1*a2*b1*b2*ka - 24*a1*a2*b2**2*ka + 294*a1*a2*b2**2*kc + 192*a2**4*ka + 264*a2**3*b1*ka + 60*a2**3*b2*ka - 276*a2
**2*b1*b2*ka - 276*a2**2*b2**2*ka) + 6435*df(x1,t)*x1**9*x2**8*a1**15*(2*a1*a2**2*kc - 4*a1*a2*b2*kc + 2*a1*b2**2*kc + 
a2**2*b1*ka + a2**2*b2*ka - a2*b1*b2*ka - a2*b2**2*ka) + 429*df(x1,t)*x1**9*x2**7*a1**13*vm*(22*a1**2*a2*b2*kc - 7*a1**2
*b2**2*kc - 16*a1*a2**3*ka - 24*a1*a2**2*b1*ka - 20*a1*a2**2*b2*ka + 112*a1*a2**2*b2*kc + 12*a1*a2*b1*b2*ka + 12*a1*a2*
b2**2*ka - 112*a1*a2*b2**2*kc - 64*a2**4*ka - 88*a2**3*b1*ka - 20*a2**3*b2*ka + 92*a2**2*b1*b2*ka + 92*a2**2*b2**2*ka) +
 715*df(x1,t)*x1**8*x2**9*a1**15*( - 16*a1*a2**2*kc + 32*a1*a2*b2*kc - 16*a1*b2**2*kc - 7*a2**2*b1*ka - 7*a2**2*b2*ka + 
7*a2*b1*b2*ka + 7*a2*b2**2*ka) + 429*df(x1,t)*x1**8*x2**8*a1**13*vm*( - 23*a1**2*a2*b2*kc + 8*a1**2*b2**2*kc + 20*a1*a2
**3*ka + 24*a1*a2**2*b1*ka + 15*a1*a2**2*b2*ka - 98*a1*a2**2*b2*kc - 13*a1*a2*b1*b2*ka - 13*a1*a2*b2**2*ka + 98*a1*a2*b2
**2*kc + 48*a2**4*ka + 66*a2**3*b1*ka + 15*a2**3*b2*ka - 69*a2**2*b1*b2*ka - 69*a2**2*b2**2*ka) + 1001*df(x1,t)*x1**7*x2
**10*a1**15*(8*a1*a2**2*kc - 16*a1*a2*b2*kc + 8*a1*b2**2*kc + 3*a2**2*b1*ka + 3*a2**2*b2*ka - 3*a2*b1*b2*ka - 3*a2*b2**2
*ka) + 143*df(x1,t)*x1**7*x2**9*a1**13*vm*(56*a1**2*a2*b2*kc - 21*a1**2*b2**2*kc - 52*a1*a2**3*ka - 54*a1*a2**2*b1*ka - 
25*a1*a2**2*b2*ka + 196*a1*a2**2*b2*kc + 31*a1*a2*b1*b2*ka + 31*a1*a2*b2**2*ka - 196*a1*a2*b2**2*kc - 80*a2**4*ka - 110*
a2**3*b1*ka - 25*a2**3*b2*ka + 115*a2**2*b1*b2*ka + 115*a2**2*b2**2*ka) + 273*df(x1,t)*x1**6*x2**11*a1**15*( - 16*a1*a2
**2*kc + 32*a1*a2*b2*kc - 16*a1*b2**2*kc - 5*a2**2*b1*ka - 5*a2**2*b2*ka + 5*a2*b1*b2*ka + 5*a2*b2**2*ka) + 143*df(x1,t)
*x1**6*x2**10*a1**13*vm*( - 35*a1**2*a2*b2*kc + 14*a1**2*b2**2*kc + 32*a1*a2**3*ka + 30*a1*a2**2*b1*ka + 10*a1*a2**2*b2*
ka - 98*a1*a2**2*b2*kc - 18*a1*a2*b1*b2*ka - 18*a1*a2*b2**2*ka + 98*a1*a2*b2**2*kc + 32*a2**4*ka + 44*a2**3*b1*ka + 10*
a2**3*b2*ka - 46*a2**2*b1*b2*ka - 46*a2**2*b2**2*ka) + 455*df(x1,t)*x1**5*x2**12*a1**15*(4*a1*a2**2*kc - 8*a1*a2*b2*kc +
 4*a1*b2**2*kc + a2**2*b1*ka + a2**2*b2*ka - a2*b1*b2*ka - a2*b2**2*ka) + 13*df(x1,t)*x1**5*x2**11*a1**13*vm*(182*a1**2*
a2*b2*kc - 77*a1**2*b2**2*kc - 152*a1*a2**3*ka - 132*a1*a2**2*b1*ka - 30*a1*a2**2*b2*ka + 392*a1*a2**2*b2*kc + 82*a1*a2*
b1*b2*ka + 82*a1*a2*b2**2*ka - 392*a1*a2*b2**2*kc - 96*a2**4*ka - 132*a2**3*b1*ka - 30*a2**3*b2*ka + 138*a2**2*b1*b2*ka 
+ 138*a2**2*b2**2*ka) + 35*df(x1,t)*x1**4*x2**13*a1**15*( - 16*a1*a2**2*kc + 32*a1*a2*b2*kc - 16*a1*b2**2*kc - 3*a2**2*
b1*ka - 3*a2**2*b2*ka + 3*a2*b1*b2*ka + 3*a2*b2**2*ka) + 13*df(x1,t)*x1**4*x2**12*a1**13*vm*( - 63*a1**2*a2*b2*kc + 28*
a1**2*b2**2*kc + 44*a1*a2**3*ka + 36*a1*a2**2*b1*ka + 5*a1*a2**2*b2*ka - 98*a1*a2**2*b2*kc - 23*a1*a2*b1*b2*ka - 23*a1*
a2*b2**2*ka + 98*a1*a2*b2**2*kc + 16*a2**4*ka + 22*a2**3*b1*ka + 5*a2**3*b2*ka - 23*a2**2*b1*b2*ka - 23*a2**2*b2**2*ka) 
+ 15*df(x1,t)*x1**3*x2**14*a1**15*(8*a1*a2**2*kc - 16*a1*a2*b2*kc + 8*a1*b2**2*kc + a2**2*b1*ka + a2**2*b2*ka - a2*b1*b2
*ka - a2*b2**2*ka) + df(x1,t)*x1**3*x2**13*a1**13*vm*(196*a1**2*a2*b2*kc - 91*a1**2*b2**2*kc - 100*a1*a2**3*ka - 78*a1*
a2**2*b1*ka - 5*a1*a2**2*b2*ka + 196*a1*a2**2*b2*kc + 51*a1*a2*b1*b2*ka + 51*a1*a2*b2**2*ka - 196*a1*a2*b2**2*kc - 16*a2
**4*ka - 22*a2**3*b1*ka - 5*a2**3*b2*ka + 23*a2**2*b1*b2*ka + 23*a2**2*b2**2*ka) + df(x1,t)*x1**2*x2**15*a1**15*( - 16*
a1*a2**2*kc + 32*a1*a2*b2*kc - 16*a1*b2**2*kc - a2**2*b1*ka - a2**2*b2*ka + a2*b1*b2*ka + a2*b2**2*ka) + df(x1,t)*x1**2*
x2**14*a1**14*vm*( - 29*a1*a2*b2*kc + 14*a1*b2**2*kc + 8*a2**3*ka + 6*a2**2*b1*ka - 14*a2**2*b2*kc - 4*a2*b1*b2*ka - 4*
a2*b2**2*ka + 14*a2*b2**2*kc) + df(x1,t)*x1*x2**16*a1**16*kc*(a2**2 - 2*a2*b2 + b2**2) + df(x1,t)*x1*x2**15*a1**15*b2*kc
*vm*(2*a2 - b2) + x1**17*a1**14*a2*vm*( - a1*a2*b2*kc + a1*b2**2*kc + 2*a2**3*ka + 2*a2**2*b1*ka - 2*a2*b1*b2*ka - 2*a2*
b2**2*ka) + x1**16*x2*a1**14*a2*vm*(15*a1*a2*b2*kc - 15*a1*b2**2*kc - 28*a2**3*ka - 28*a2**2*b1*ka + 28*a2*b1*b2*ka + 28
*a2*b2**2*ka) + 7*x1**15*x2**2*a1**14*a2*vm*( - 15*a1*a2*b2*kc + 15*a1*b2**2*kc + 26*a2**3*ka + 26*a2**2*b1*ka - 26*a2*
b1*b2*ka - 26*a2*b2**2*ka) + 91*x1**14*x2**3*a1**14*a2*vm*(5*a1*a2*b2*kc - 5*a1*b2**2*kc - 8*a2**3*ka - 8*a2**2*b1*ka + 
8*a2*b1*b2*ka + 8*a2*b2**2*ka) + 91*x1**13*x2**4*a1**14*a2*vm*( - 15*a1*a2*b2*kc + 15*a1*b2**2*kc + 22*a2**3*ka + 22*a2
**2*b1*ka - 22*a2*b1*b2*ka - 22*a2*b2**2*ka) + 1001*x1**12*x2**5*a1**14*a2*vm*(3*a1*a2*b2*kc - 3*a1*b2**2*kc - 4*a2**3*
ka - 4*a2**2*b1*ka + 4*a2*b1*b2*ka + 4*a2*b2**2*ka) + 1001*x1**11*x2**6*a1**14*a2*vm*( - 5*a1*a2*b2*kc + 5*a1*b2**2*kc +
 6*a2**3*ka + 6*a2**2*b1*ka - 6*a2*b1*b2*ka - 6*a2*b2**2*ka) + 429*x1**10*x2**7*a1**14*a2*vm*(15*a1*a2*b2*kc - 15*a1*b2
**2*kc - 16*a2**3*ka - 16*a2**2*b1*ka + 16*a2*b1*b2*ka + 16*a2*b2**2*ka) + 429*x1**9*x2**8*a1**14*a2*vm*( - 15*a1*a2*b2*
kc + 15*a1*b2**2*kc + 14*a2**3*ka + 14*a2**2*b1*ka - 14*a2*b1*b2*ka - 14*a2*b2**2*ka) + 1001*x1**8*x2**9*a1**14*a2*vm*(5
*a1*a2*b2*kc - 5*a1*b2**2*kc - 4*a2**3*ka - 4*a2**2*b1*ka + 4*a2*b1*b2*ka + 4*a2*b2**2*ka) + 1001*x1**7*x2**10*a1**14*a2
*vm*( - 3*a1*a2*b2*kc + 3*a1*b2**2*kc + 2*a2**3*ka + 2*a2**2*b1*ka - 2*a2*b1*b2*ka - 2*a2*b2**2*ka) + 91*x1**6*x2**11*a1
**14*a2*vm*(15*a1*a2*b2*kc - 15*a1*b2**2*kc - 8*a2**3*ka - 8*a2**2*b1*ka + 8*a2*b1*b2*ka + 8*a2*b2**2*ka) + 91*x1**5*x2
**12*a1**14*a2*vm*( - 5*a1*a2*b2*kc + 5*a1*b2**2*kc + 2*a2**3*ka + 2*a2**2*b1*ka - 2*a2*b1*b2*ka - 2*a2*b2**2*ka) + 7*x1
**4*x2**13*a1**14*a2*vm*(15*a1*a2*b2*kc - 15*a1*b2**2*kc - 4*a2**3*ka - 4*a2**2*b1*ka + 4*a2*b1*b2*ka + 4*a2*b2**2*ka) +
 x1**3*x2**14*a1**14*a2*vm*( - 15*a1*a2*b2*kc + 15*a1*b2**2*kc + 2*a2**3*ka + 2*a2**2*b1*ka - 2*a2*b1*b2*ka - 2*a2*b2**2
*ka) + x1**2*x2**15*a1**15*a2*b2*kc*vm*(a2 - b2))/(ka*vm)$

RANDOMLY CHOSEN NUMERICAL PARAMETER(S) VECTOR$

b2_ := {a1=8,a2=16,b1=3,b2=20,ka=17,kc=13,vm=5}$

EXHAUSTIVE SUMMARY $

flist_ := { - a2 + 16,
a2 - 16,
a1 - 8,
 - a1 + 8,
a1**2 - 64,
 - a1**2 + 64,
a1**2 - 64,
a1**3 - 512,
 - a1**3 + 512,
a1**3 - 512,
 - a1**3 + 512,
a1**4 - 4096,
 - a1**4 + 4096,
a1**4 - 4096,
 - a1**4 + 4096,
a1**4 - 4096,
a1**5 - 32768,
 - a1**5 + 32768,
a1**5 - 32768,
 - a1**5 + 32768,
a1**5 - 32768,
 - a1**5 + 32768,
a1**6 - 262144,
 - a1**6 + 262144,
a1**6 - 262144,
 - a1**6 + 262144,
a1**6 - 262144,
 - a1**6 + 262144,
a1**6 - 262144,
a1**7 - 2097152,
 - a1**7 + 2097152,
a1**7 - 2097152,
 - a1**7 + 2097152,
a1**7 - 2097152,
 - a1**7 + 2097152,
a1**7 - 2097152,
 - a1**7 + 2097152,
a1**8 - 16777216,
 - a1**8 + 16777216,
a1**8 - 16777216,
 - a1**8 + 16777216,
a1**8 - 16777216,
 - a1**8 + 16777216,
a1**8 - 16777216,
 - a1**8 + 16777216,
a1**8 - 16777216,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
a1**11 - 8589934592,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1**11 + 8589934592,
a1**12 - 68719476736,
 - a1**12 + 68719476736,
a1**12 - 68719476736,
 - a1**12 + 68719476736,
a1**12 - 68719476736,
 - a1**12 + 68719476736,
a1**12 - 68719476736,
 - a1**12 + 68719476736,
a1**12 - 68719476736,
 - a1**12 + 68719476736,
a1**12 - 68719476736,
 - a1**12 + 68719476736,
a1**12 - 68719476736,
a1 - 8,
 - a1**2 + 64,
a1**3 - 512,
 - a1**4 + 4096,
a1**5 - 32768,
 - a1**6 + 262144,
a1**7 - 2097152,
 - a1**8 + 16777216,
a1**9 - 134217728,
 - a1**10 + 1073741824,
a1**11 - 8589934592,
 - a1**12 + 68719476736,
a1**13 - 549755813888,
 - a1 + 8,
a1 - 8,
 - a1**2 + 64,
a1**2 - 64,
 - a1**2 + 64,
 - a1**3 + 512,
a1**3 - 512,
 - a1**3 + 512,
a1**3 - 512,
 - a1**4 + 4096,
a1**4 - 4096,
 - a1**4 + 4096,
a1**4 - 4096,
 - a1**4 + 4096,
 - a1**5 + 32768,
a1**5 - 32768,
 - a1**5 + 32768,
a1**5 - 32768,
 - a1**5 + 32768,
a1**5 - 32768,
 - a1**6 + 262144,
a1**6 - 262144,
 - a1**6 + 262144,
a1**6 - 262144,
 - a1**6 + 262144,
a1**6 - 262144,
 - a1**6 + 262144,
 - a1**7 + 2097152,
a1**7 - 2097152,
 - a1**7 + 2097152,
a1**7 - 2097152,
 - a1**7 + 2097152,
a1**7 - 2097152,
 - a1**7 + 2097152,
a1**7 - 2097152,
 - a1**8 + 16777216,
a1**8 - 16777216,
 - a1**8 + 16777216,
a1**8 - 16777216,
 - a1**8 + 16777216,
a1**8 - 16777216,
 - a1**8 + 16777216,
a1**8 - 16777216,
 - a1**8 + 16777216,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1**12 + 68719476736,
a1**12 - 68719476736,
 - a1**12 + 68719476736,
a1**12 - 68719476736,
 - a1**12 + 68719476736,
a1**12 - 68719476736,
 - a1**12 + 68719476736,
a1**12 - 68719476736,
 - a1**12 + 68719476736,
a1**12 - 68719476736,
 - a1**12 + 68719476736,
a1**12 - 68719476736,
 - a1**12 + 68719476736,
 - a1 + 8,
a1 - 8,
 - a1**2 + 64,
a1**2 - 64,
 - a1**2 + 64,
 - a1**3 + 512,
a1**3 - 512,
 - a1**3 + 512,
a1**3 - 512,
 - a1**4 + 4096,
a1**4 - 4096,
 - a1**4 + 4096,
a1**4 - 4096,
 - a1**4 + 4096,
 - a1**5 + 32768,
a1**5 - 32768,
 - a1**5 + 32768,
a1**5 - 32768,
 - a1**5 + 32768,
a1**5 - 32768,
 - a1**6 + 262144,
a1**6 - 262144,
 - a1**6 + 262144,
a1**6 - 262144,
 - a1**6 + 262144,
a1**6 - 262144,
 - a1**6 + 262144,
 - a1**7 + 2097152,
a1**7 - 2097152,
 - a1**7 + 2097152,
a1**7 - 2097152,
 - a1**7 + 2097152,
a1**7 - 2097152,
 - a1**7 + 2097152,
a1**7 - 2097152,
 - a1**8 + 16777216,
a1**8 - 16777216,
 - a1**8 + 16777216,
a1**8 - 16777216,
 - a1**8 + 16777216,
a1**8 - 16777216,
 - a1**8 + 16777216,
a1**8 - 16777216,
 - a1**8 + 16777216,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1**11 + 8589934592,
a1**11 - 8589934592,
 - a1 + 8,
a1**2 - 64,
 - a1**3 + 512,
a1**4 - 4096,
 - a1**5 + 32768,
a1**6 - 262144,
 - a1**7 + 2097152,
a1**8 - 16777216,
 - a1**9 + 134217728,
a1**10 - 1073741824,
 - a1**11 + 8589934592,
a1**12 - 68719476736,
 - a1**13 + 549755813888,
a1 - 8,
 - a1**2 + 64,
a1**3 - 512,
 - a1**4 + 4096,
a1**5 - 32768,
 - a1**6 + 262144,
a1**7 - 2097152,
 - a1**8 + 16777216,
a1**9 - 134217728,
 - a1**10 + 1073741824,
a1**11 - 8589934592,
a1**12 - 68719476736,
 - a1**13 + 549755813888,
a1**14 - 4398046511104,
a1 - 8,
 - a1 + 8,
a1**2 - 64,
 - a1**2 + 64,
a1**2 - 64,
a1**3 - 512,
 - a1**3 + 512,
a1**3 - 512,
 - a1**3 + 512,
a1**4 - 4096,
 - a1**4 + 4096,
a1**4 - 4096,
 - a1**4 + 4096,
a1**4 - 4096,
a1**5 - 32768,
 - a1**5 + 32768,
a1**5 - 32768,
 - a1**5 + 32768,
a1**5 - 32768,
 - a1**5 + 32768,
a1**6 - 262144,
 - a1**6 + 262144,
a1**6 - 262144,
 - a1**6 + 262144,
a1**6 - 262144,
 - a1**6 + 262144,
a1**6 - 262144,
a1**7 - 2097152,
 - a1**7 + 2097152,
a1**7 - 2097152,
 - a1**7 + 2097152,
a1**7 - 2097152,
 - a1**7 + 2097152,
a1**7 - 2097152,
 - a1**7 + 2097152,
a1**8 - 16777216,
 - a1**8 + 16777216,
a1**8 - 16777216,
 - a1**8 + 16777216,
a1**8 - 16777216,
 - a1**8 + 16777216,
a1**8 - 16777216,
 - a1**8 + 16777216,
a1**8 - 16777216,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**9 - 134217728,
 - a1**9 + 134217728,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
 - a1**10 + 1073741824,
a1**10 - 1073741824,
a1 - 8,
 - a1**2 + 64,
a1**3 - 512,
 - a1**4 + 4096,
a1**5 - 32768,
 - a1**6 + 262144,
a1**7 - 2097152,
 - a1**8 + 16777216,
a1**9 - 134217728,
 - a1**10 + 1073741824,
a1**11 - 8589934592,
a1**12 - 68719476736,
 - a1 + 8,
a1**2 - 64,
 - a1**3 + 512,
a1**4 - 4096}$

MODEL PARAMETER SOLUTION(S)$

 G_:=GROESOLVE(FLIST_,B1_) $

g_ := {{a2=16,a1=8}}$

MODEL NON IDENTIFIABLE$
Elapsed time for PharmacokineticsPoly: 824.0663341 seconds
