k1 = 21/50
k2 = 1/200
k3 = 21/50
k4 = 1/200
k5 = 23/1000
k6 = 23/4000
k7 = 7/200
k8 = 23/1000
k9 = 9/25000
k10 = 7/500
k11 = 13/1000
k12 = 7/200
k13 = 7/200
k14 = 7/200
k15 = 37
k16 = 9/500
k17 = 99/1000
k18 = 11/2
k19 = 1
k20 = 799999699/10000000
k21 = 2000003/100000