k1 = 40 
k2 = 10 
k3 = 20 
k4 = 10 
k5 = 1 
k6 = 1 
k7 = 0.3 
k8 = 1 
k9 = 1 
k10 = 1 
k11 = 1 
k12 = 0.1 
k13 = 0.1 
k14 = 1 
k15 = 0.1 
k16 = 0.05 
k17 = 0.05 
k18 = 0.05 
k19 = 1