{ diff(x1, t) = 0/k48,
  diff(x2, t) = (1*k17*(k29*k25/(k11 + k25) - x2)*(x1 - x2) + (-1)*(1/2*k4*k15*x3/(k16 + x3)*(x6/(k10 + x6))^3*x2 - 1/2*k5*(x3/(k11 + x3))^2 + 1/2*k6*x2*x2))/k50,
  diff(x3, t) = (1*((-k7)*x3*(k18 - x4) + k8*x4) + 1*(1/2*k4*k15*x3/(k16 + x3)*(x6/(k10 + x6))^3*x2 - 1/2*k5*(x3/(k11 + x3))^2 + 1/2*k6*x2*x2) + (-1)*1/2*k22*x3^4/(k14^4 + x3^4) + (-1)*1/2*k21*x3/(k13 + x3) + 1*1/2*k23 + (-1)*1/2*k20*x3^2/(k12^2 + x3^2))/k49,
  diff(x4, t) = (-1)*((-k7)*x3*(k18 - x4) + k8*x4)/k49,
  diff(x5, t) = (-1)*k17*(k29*k25/(k11 + k25) - x2)*(x1 - x2)/k48,
  diff(x6, t) = (1*1/2*k2*(k1 - k28*k1*(exp((-x12)/k26) + exp((-x12)/k27) + (exp((-x12)/k26) - exp((-x12)/k27))*(k26 + k27)/(k26 - k27)))*x3/(k9 + x3) + (-1)*1/2*k3*x6)/k49,
  diff(x7, t) = (-1)*1/2*k2*(k1 - k28*k1*(exp((-x12)/k26) + exp((-x12)/k27) + (exp((-x12)/k26) - exp((-x12)/k27))*(k26 + k27)/(k26 - k27)))*x3/(k9 + x3)/k49,
  diff(x8, t) = 1*1/2*k3*x6/k49,
  diff(x9, t) = (1*1/2*k22*x3^4/(k14^4 + x3^4) + 1*1/2*k20*x3^2/(k12^2 + x3^2))/k49,
  diff(x10, t) = 1*1/2*k21*x3/(k13 + x3)/k49,
  diff(x11, t) = (-1)*1/2*k23/k49,
  diff(x12, t) = 1*k52*1/2/k49,
  diff(x13, t) = (-1)*k52*1/2/k49,
  diff(x14, t) = (1*k73*x17*x25 + (-1)*x14*k74)/k49,
  diff(x15, t) = 0/k49,
  diff(x16, t) = ((-1)*(k61*x17*x16 - k62*x28) + 1*k71*x27*x15/(k72 + x27))/k49,
  diff(x17, t) = (1*k57*x19*x20/(k58 + x19) + (-1)*k59*x17*x18/(k60 + x17) + (-1)*(k61*x17*x16 - k62*x28) + 1*k71*x27*x15/(k72 + x27))/k49,
  diff(x18, t) = 0/k49,
  diff(x19, t) = ((-1)*k57*x19*x20/(k58 + x19) + 1*k59*x17*x18/(k60 + x17))/k49,
  diff(x20, t) = 1*exp(k54 - (x23/k56)^(9/5))*k53*(x23/k55)^(4/5)*(k54 - (x23/k56)^(9/5))/k49,
  diff(x21, t) = (-1)*k75/k49,
  diff(x22, t) = (-1)*exp(k54 - (x23/k56)^(9/5))*k53*(x23/k55)^(4/5)*(k54 - (x23/k56)^(9/5))/k49,
  diff(x23, t) = 1*k75/k49,
  diff(x24, t) = 0/k49,
  diff(x25, t) = ((-1)*k73*x17*x25 + 1*x14*k74)/k49,
  diff(x26, t) = (1*k63*x28*x14/(k64 + x28) + (-1)*k65*x26*x24/(k66 + x26) + (-1)*k67*x26*x15/(k68 + x26) + 1*k69*x27*x15/(k70 + x27))/k49,
  diff(x27, t) = (1*k65*x26*x24/(k66 + x26) + (-1)*k69*x27*x15/(k70 + x27) + (-1)*k71*x27*x15/(k72 + x27))/k49,
  diff(x28, t) = (1*(k61*x17*x16 - k62*x28) + (-1)*k63*x28*x14/(k64 + x28) + 1*k67*x26*x15/(k68 + x26))/k49,
  diff(x29, t) = 1*k119*x67/k49,
  diff(x30, t) = (-1)*k120*x67/(x67 + k121)/k49,
  diff(x31, t) = (-1)*k122/k49,
  diff(x32, t) = 1*k122/k49,
  diff(x33, t) = ((-1)*x35*x33*k132/(k131 + x33) + 1*k134*x68/(x68 + k133))/k51,
  diff(x34, t) = ((-1)*k123*x34/(x34 + k124) + 1*k125*x61*x62/(k126 + x61))/k49,
  diff(x35, t) = ((-1)*k127*x35/(k128 + x35) + 1*k129*x65*x34/(k130 + x65))/k49,
  diff(x36, t) = (1*k37*x37*x41 + (-1)*(k31*k36*x36 - k35*x3*x40) + (-1)*k45*x36*x43 + (-1)*k47*x36)/k49,
  diff(x37, t) = ((-1)*k37*x37*x41 + 1*(k35*x3*x38 - k36*x37) + 1*k47*x36 + 1*k47*x44 + 1*k47*x45)/k49,
  diff(x38, t) = ((-1)*(k39*x41*x38 - k40*x40) + 1*(k33*x3*x42 - k34*x38) + (-1)*(k35*x3*x38 - k36*x37) + 1*(k40*x47 - k39*x50*x38) + 1*k47*x40 + 1*k47*x46 + 1*k47*x47)/k49,
  diff(x39, t) = 1*exp(k135*(k138 - x32/k136))/(1 + 2*exp(k135*(k138 - x32/k136)) + exp(2*k135*(k138 - x32/k136)))/k137*3657/125/k49,
  diff(x40, t) = (1*(k39*x41*x38 - k40*x40) + 1*(k31*k36*x36 - k35*x3*x40) + 1*k46*x46 + (-1)*k47*x40)/k49,
  diff(x41, t) = ((-1)*k37*x37*x41 + (-1)*(k39*x41*x38 - k40*x40) + 1*k46*x51 + 1*k120*x67/(x67 + k121) + (-1)*k47*x41)/k49,
  diff(x42, t) = (-1)*(k33*x3*x42 - k34*x38)/k49,
  diff(x43, t) = ((-1)*k45*x36*x43 + 1*k46*x46 + 1*k46*x51 + 1*k47*x51 + 1*k47*x50 + 1*k47*x46 + 1*k47*x47 + 1*k47*x44 + 1*k47*x45)/k49,
  diff(x44, t) = (1*k45*x36*x43 + (-1)*(k31*k36*x44 - k35*x3*x46) + (-1)*(k41*x44*x27/(x44 + k42) - k44*x45/(x45 + k43)) + (-1)*k47*x44)/k49,
  diff(x45, t) = ((-1)*(k31*k36*x45 - k35*x3*x47) + 1*(k41*x44*x27/(x44 + k42) - k44*x45/(x45 + k43)) + (-1)*k47*x45)/k49,
  diff(x46, t) = (1*(k31*k36*x44 - k35*x3*x46) + (-1)*k46*x46 + (-1)*(k41*x46*x27/(x46 + k42) - k44*x47/(x47 + k43)) + (-1)*k47*x46)/k49,
  diff(x47, t) = (1*(k31*k36*x45 - k35*x3*x47) + 1*(k41*x46*x27/(x46 + k42) - k44*x47/(x47 + k43)) + (-1)*(k40*x47 - k39*x50*x38) + (-1)*k47*x47)/k49,
  diff(x48, t) = (-1)*(k76*(x36 + x44) + k77*(x47 + x50) + k78*x45)/k49,
  diff(x49, t) = 1*(k76*(x36 + x44) + k77*(x47 + x50) + k78*x45)/k49,
  diff(x50, t) = ((-1)*k44*x50/(x50 + k43) + 1*(k40*x47 - k39*x50*x38) + (-1)*k47*x50)/k49,
  diff(x51, t) = (1*k44*x50/(x50 + k43) + (-1)*k46*x51 + (-1)*k47*x51)/k49,
  diff(x52, t) = ((-1)*(k88*x52*x54 - k89*x70) + 1*k96*x59/(k97 + x59))/k49,
  diff(x53, t) = 1*exp(k86 - (x32/k85)^(13/10))*k84*(x32/k87)^(3/10)*(k86 - (x32/k85)^(13/10))/k49,
  diff(x54, t) = (1*exp(k81 - (x32/k80)^(7/20))*k79*((x32 + k83)/k82)^(-13/20)*(k81 - (x32/k80)^(7/20)) + (-1)*(k88*x52*x54 - k89*x70) + 1*(k94*x73 - k95*x54*x74))/k49,
  diff(x55, t) = (-1)*exp(k86 - (x32/k85)^(13/10))*k84*(x32/k87)^(3/10)*(k86 - (x32/k85)^(13/10))/k49,
  diff(x56, t) = (-1)*exp(k81 - (x32/k80)^(7/20))*k79*((x32 + k83)/k82)^(-13/20)*(k81 - (x32/k80)^(7/20))/k49,
  diff(x57, t) = ((-1)*k111*x62*x57/(k112 + x57) + 1*k114*x61/(x61 + k113))/k49,
  diff(x58, t) = ((-1)*k107*x63*x58/(k108 + x58) + 1*k110*x62/(k109 + x62))/k49,
  diff(x59, t) = ((-1)*k96*x59/(k97 + x59) + 1*k98*x74)/k49,
  diff(x60, t) = ((-1)*k115*x60*x34/(x60 + k116) + 1*k118*x65/(x65 + k117))/k49,
  diff(x61, t) = (1*k111*x62*x57/(k112 + x57) + (-1)*k114*x61/(x61 + k113) + 1*k123*x34/(x34 + k124) + (-1)*k125*x61*x62/(k126 + x61))/k49,
  diff(x62, t) = (1*k107*x63*x58/(k108 + x58) + (-1)*k110*x62/(k109 + x62))/k49,
  diff(x63, t) = (1*k103*x74*x64/(x64 + k104) + (-1)*k105*x63/(k106 + x63))/k49,
  diff(x64, t) = ((-1)*k103*x74*x64/(x64 + k104) + 1*k105*x63/(k106 + x63))/k49,
  diff(x65, t) = (1*k115*x60*x34/(x60 + k116) + (-1)*k118*x65/(x65 + k117) + 1*k127*x35/(k128 + x35) + (-1)*k129*x65*x34/(k130 + x65))/k49,
  diff(x66, t) = (-1)*exp(k135*(k138 - x32/k136))/(1 + 2*exp(k135*(k138 - x32/k136)) + exp(2*k135*(k138 - x32/k136)))/k137*3657/125/k49,
  diff(x67, t) = (1*x75*k99 + (-1)*k119*x67)/k49,
  diff(x68, t) = (1*x35*x33*k132/(k131 + x33) + (-1)*k134*x68/(x68 + k133))/k51,
  diff(x69, t) = (-1)*(k100*x68 + k101*x39)/k51,
  diff(x70, t) = (1*(k88*x52*x54 - k89*x70) + (-1)*(k90*x70*x53 - k91*x72))/k49,
  diff(x71, t) = ((-1)*(k92*x71*x72 - k93*x73) + 1*k98*x74)/k49,
  diff(x72, t) = (1*(k90*x70*x53 - k91*x72) + (-1)*(k92*x71*x72 - k93*x73))/k49,
  diff(x73, t) = (1*(k92*x71*x72 - k93*x73) + (-1)*(k94*x73 - k95*x54*x74))/k49,
  diff(x74, t) = (1*(k94*x73 - k95*x54*x74) + (-1)*k98*x74)/k49,
  diff(x75, t) = ((-1)*x75*k99 + 1*(k100*x68 + k101*x39))/k51,
  diff(x76, t) = 1*k47*x41/k49,
  diff(x77, t) = (1*k47*x36 + 1*k47*x40)/k49,
  diff(x78, t) = (1*k47*x51 + 1*k47*x50)/k49,
  diff(x79, t) = 0/k48 }