k1 = 700 
k2 = 800 
k3 = 850 
k4 = 20 
k5 = 0.2 
k6 = 700 
k7 = 800 
k8 = 850 
k9 = 5 
k10 = 25 
k11 = 1.6 
k12 = 0.02 
k13 = 0.11 
k14 = 0.025 
k15 = 0.064 
k16 = 1 
k17 = 1 
k18 = 0.5 
k19 = 0 
k20 = 0 
k21 = 0.288 
k22 = 0.112