{ diff(x1, t) = (1*k13*k2*k1*(k101 - x1)/k14/(1 + (k101 + x1)/k14 + k15*k101*x1/k14^2) + (-1)*k12*k1*k3*k16*(x1*x2/(k17*k18) - x3*x4/(k17*k18*k19))/((1 + x1/k17 + x3/k20)*(1 + x2/k18 + x4/k21)))/k12,
  diff(x2, t) = ((-1)*k12*k1*k3*k16*(x1*x2/(k17*k18) - x3*x4/(k17*k18*k19))/((1 + x1/k17 + x3/k20)*(1 + x2/k18 + x4/k21)) + (-1)*k12*k26*k6*k1*k27*x5/k28*x2/k29*(1 + x5/k28 + x2/k29 + k27*x5/k28*x2/k29)/((1 + x5/k28 + x2/k29 + k27*x5/k28*x2/k29)^2 + k30*((1 + k31*x2/k32)/(1 + x2/k32))^2*((1 + k33*x8/k34)/(1 + x8/k34))^2*((1 + k35*k100/k36 + k37*x6/k38)/(1 + k100/k36 + x6/k38))^2*(1 + k39*x2/k29)^2) + 1*k12*k9*k55*k1*(k56*x12*x4 - x14*x2)/(k57*k58)/((1 + x12/k59 + x14/k57)*(1 + x4/k60 + x2/k58)) + 1*k12*k69*k8*k1*(x16*x4/(k70*k71) - x17*x2/(k70*k71*k72))/((1 + x16/k70 + x17/k73)*(1 + x4/k71 + x2/k74)) + (-1)*k12*k88*x2 + 1*k12*(k89*x4*x4 - k90*x2*x8) + (-1)*k12*k97 + (-1)*k12*k98)/k12,
  diff(x3, t) = (1*k12*k1*k3*k16*(x1*x2/(k17*k18) - x3*x4/(k17*k18*k19))/((1 + x1/k17 + x3/k20)*(1 + x2/k18 + x4/k21)) + (-1)*k12*k22*k11*k1*(x3/k23 - x5/(k23*k24))/(1 + x3/k23 + x5/k25) + (-1)*k12*k97 + (-2)*k12*k98)/k12,
  diff(x4, t) = (1*k12*k1*k3*k16*(x1*x2/(k17*k18) - x3*x4/(k17*k18*k19))/((1 + x1/k17 + x3/k20)*(1 + x2/k18 + x4/k21)) + 1*k12*k26*k6*k1*k27*x5/k28*x2/k29*(1 + x5/k28 + x2/k29 + k27*x5/k28*x2/k29)/((1 + x5/k28 + x2/k29 + k27*x5/k28*x2/k29)^2 + k30*((1 + k31*x2/k32)/(1 + x2/k32))^2*((1 + k33*x8/k34)/(1 + x8/k34))^2*((1 + k35*k100/k36 + k37*x6/k38)/(1 + k100/k36 + x6/k38))^2*(1 + k39*x2/k29)^2) + (-1)*k12*k9*k55*k1*(k56*x12*x4 - x14*x2)/(k57*k58)/((1 + x12/k59 + x14/k57)*(1 + x4/k60 + x2/k58)) + (-1)*k12*k69*k8*k1*(x16*x4/(k70*k71) - x17*x2/(k70*k71*k72))/((1 + x16/k70 + x17/k73)*(1 + x4/k71 + x2/k74)) + 1*k12*k88*x2 + (-2)*k12*(k89*x4*x4 - k90*x2*x8) + 1*k12*k97 + 1*k12*k98)/k12,
  diff(x5, t) = (1*k12*k22*k11*k1*(x3/k23 - x5/(k23*k24))/(1 + x3/k23 + x5/k25) + (-1)*k12*k26*k6*k1*k27*x5/k28*x2/k29*(1 + x5/k28 + x2/k29 + k27*x5/k28*x2/k29)/((1 + x5/k28 + x2/k29 + k27*x5/k28*x2/k29)^2 + k30*((1 + k31*x2/k32)/(1 + x2/k32))^2*((1 + k33*x8/k34)/(1 + x8/k34))^2*((1 + k35*k100/k36 + k37*x6/k38)/(1 + k100/k36 + x6/k38))^2*(1 + k39*x2/k29)^2))/k12,
  diff(x6, t) = (1*k12*k26*k6*k1*k27*x5/k28*x2/k29*(1 + x5/k28 + x2/k29 + k27*x5/k28*x2/k29)/((1 + x5/k28 + x2/k29 + k27*x5/k28*x2/k29)^2 + k30*((1 + k31*x2/k32)/(1 + x2/k32))^2*((1 + k33*x8/k34)/(1 + x8/k34))^2*((1 + k35*k100/k36 + k37*x6/k38)/(1 + k100/k36 + x6/k38))^2*(1 + k39*x2/k29)^2) + (-1)*k12*k40*k7*k1*(x6/k41 - x9*x10/(k41*k42))/(1 + x6/k41 + x9/k43 + x10/k44 + x6*x10/(k41*k45) + x9*x10/(k43*k44)))/k12,
  diff(x7, t) = 0,
  diff(x8, t) = 1*k12*(k89*x4*x4 - k90*x2*x8)/k12,
  diff(x9, t) = (1*k12*k40*k7*k1*(x6/k41 - x9*x10/(k41*k42))/(1 + x6/k41 + x9/k43 + x10/k44 + x6*x10/(k41*k45) + x9*x10/(k43*k44)) + (-1)*k12*(k46*x9 - k47*x10) + (-1)*k12*k91*k1*(x9/k92*x13/k93 - k104/k92*x11/k93*1/k94)/((1 + x9/k92 + k104/k95)*(1 + x13/k93 + x11/k96)))/k12,
  diff(x10, t) = (1*k12*k40*k7*k1*(x6/k41 - x9*x10/(k41*k42))/(1 + x6/k41 + x9/k43 + x10/k44 + x6*x10/(k41*k45) + x9*x10/(k43*k44)) + 1*k12*(k46*x9 - k47*x10) + (-1)*k12*k48*(k49*k4*k1*x10*x11/(k50*k51) - k52*k4*k1*x12*x13/(k53*k54))/((1 + x10/k50 + x12/k53)*(1 + x11/k51 + x13/k54)))/k12,
  diff(x11, t) = ((-1)*k12*k48*(k49*k4*k1*x10*x11/(k50*k51) - k52*k4*k1*x12*x13/(k53*k54))/((1 + x10/k50 + x12/k53)*(1 + x11/k51 + x13/k54)) + (-1)*k12*k78*k1*(k103*x11/(k79*k80) - x18*x13/(k79*k80*k81))/(1 + x11/k80 + k103*k82/(k80*k79) + x18*k83/(k84*k85) + x13/k84 + k103*x11/(k80*k79) + x11*x18*k83/(k80*k84*k85) + k103*x13*k82/(k80*k84*k79) + x18*x13/(k85*k84) + k103*x11*x18/(k80*k86*k79) + k103*x18*x13/(k87*k84*k85)) + 1*k12*k91*k1*(x9/k92*x13/k93 - k104/k92*x11/k93*1/k94)/((1 + x9/k92 + k104/k95)*(1 + x13/k93 + x11/k96)) + (-3)*k12*k99*x18)/k12,
  diff(x12, t) = (1*k12*k48*(k49*k4*k1*x10*x11/(k50*k51) - k52*k4*k1*x12*x13/(k53*k54))/((1 + x10/k50 + x12/k53)*(1 + x11/k51 + x13/k54)) + (-1)*k12*k9*k55*k1*(k56*x12*x4 - x14*x2)/(k57*k58)/((1 + x12/k59 + x14/k57)*(1 + x4/k60 + x2/k58)))/k12,
  diff(x13, t) = (1*k12*k48*(k49*k4*k1*x10*x11/(k50*k51) - k52*k4*k1*x12*x13/(k53*k54))/((1 + x10/k50 + x12/k53)*(1 + x11/k51 + x13/k54)) + 1*k12*k78*k1*(k103*x11/(k79*k80) - x18*x13/(k79*k80*k81))/(1 + x11/k80 + k103*k82/(k80*k79) + x18*k83/(k84*k85) + x13/k84 + k103*x11/(k80*k79) + x11*x18*k83/(k80*k84*k85) + k103*x13*k82/(k80*k84*k79) + x18*x13/(k85*k84) + k103*x11*x18/(k80*k86*k79) + k103*x18*x13/(k87*k84*k85)) + (-1)*k12*k91*k1*(x9/k92*x13/k93 - k104/k92*x11/k93*1/k94)/((1 + x9/k92 + k104/k95)*(1 + x13/k93 + x11/k96)) + 3*k12*k99*x18)/k12,
  diff(x14, t) = (1*k12*k9*k55*k1*(k56*x12*x4 - x14*x2)/(k57*k58)/((1 + x12/k59 + x14/k57)*(1 + x4/k60 + x2/k58)) + (-1)*k12*k61*k10*k1*(x14/k62 - x15/(k62*k63))/(1 + x14/k62 + x15/k64))/k12,
  diff(x15, t) = (1*k12*k61*k10*k1*(x14/k62 - x15/(k62*k63))/(1 + x14/k62 + x15/k64) + (-1)*k12*k65*k5*k1*(x15/k66 - x16/(k66*k67))/(1 + x15/k66 + x16/k68))/k12,
  diff(x16, t) = (1*k12*k65*k5*k1*(x15/k66 - x16/(k66*k67))/(1 + x15/k66 + x16/k68) + (-1)*k12*k69*k8*k1*(x16*x4/(k70*k71) - x17*x2/(k70*k71*k72))/((1 + x16/k70 + x17/k73)*(1 + x4/k71 + x2/k74)))/k12,
  diff(x17, t) = (1*k12*k69*k8*k1*(x16*x4/(k70*k71) - x17*x2/(k70*k71*k72))/((1 + x16/k70 + x17/k73)*(1 + x4/k71 + x2/k74)) + (-1)*k12*k75*k1*(x17/k76)^k77/(1 + (x17/k76)^k77))/k12,
  diff(x18, t) = (1*k12*k75*k1*(x17/k76)^k77/(1 + (x17/k76)^k77) + 1*k12*k78*k1*(k103*x11/(k79*k80) - x18*x13/(k79*k80*k81))/(1 + x11/k80 + k103*k82/(k80*k79) + x18*k83/(k84*k85) + x13/k84 + k103*x11/(k80*k79) + x11*x18*k83/(k80*k84*k85) + k103*x13*k82/(k80*k84*k79) + x18*x13/(k85*k84) + k103*x11*x18/(k80*k86*k79) + k103*x18*x13/(k87*k84*k85)) + (-2)*k12*k99*x18)/k12,
  diff(x19, t) = 0,
  diff(x20, t) = 0,
  diff(x21, t) = 0,
  diff(x22, t) = 0,
  diff(x23, t) = 0,
  diff(x24, t) = 0,
  diff(x25, t) = 0 }