k1 = 1
k2 = 1/10
k3 = 1/5
k4 = -1
k5 = 1/100
k6 = -3
k7 = 1/10
k8 = 3/2
k9 = 1
k10 = 1/2
k11 = 1/10
k12 = 1
k13 = 1