k1 = 2391/10
k2 = 473/20
k3 = 4531/1000
k4 = 1229/10
k5 = 4007/5
k6 = 1961/250
k7 = 1497/10
k8 = 4387/100
k9 = 249/4
k10 = 62/5
k11 = 1537/25000
k12 = 881/5000
k13 = 7859/10000
k14 = 0
k15 = 1
k16 = 1999999/10000000
k17 = 4999999/100000000
k18 = 2999999/100000000
k19 = 7/5