k1 = 1; k2 = 22649/50000000; k3 = 130837/10000000000; k4 = 499767/500000; k5 = 1; k6 = 1; k7 = 1; k8 = 1; k9 = 1; k10 = 1; k11 = 49991/200000; k12 = 241033/1000000; k13 = 46949/250000; k14 = 1; k15 = 1; k16 = 1; k17 = 1; k18 = 1;