k1 = 431/1000;
k2 = 51/5000000000000000;
k3 = 341/1000000000000;
k4 = 103/2500;
k5 = 3/200;
k6 = 101/5;
k7 = 3/5;
k8 = 3/5;
k9 = 4/5;
k10 = 1/312500000;
k11 = 1/50000000000;
k12 = 12000;
k13 = 750000000;
k14 = 3/250;
k15 = 9/10;
k16 = 9/20;
k17 = 0;
k18 = 1;