k1 = 2
k2 = 9/10
k3 = 5/2
k4 = 3/2
k5 = 3/5
k6 = 4/5
k7 = 1
k8 = 13/10
k9 = 3/10
k10 = 4/5
k11 = 7/10
k12 = 49/10
k13 = 23
k14 = 9/2
k15 = 1