k1 = 257/500;
k2 = 1/500000000;
k3 = 1101/10000000000;
k4 = 1101/10000000000000;
k5 = 1101/1000000000000;
k6 = 13000;
k7 = 103/2500;
k8 = 1711/5000000000000;
k9 = 249/2000;
k10 = 20193000;
k11 = 11/100000000;
k12 = 171/500000000000;
k13 = 1/50;
k14 = 7/20;
k15 = 1;
k16 = 3/2;
k17 = 1;
k18 = 100000000;
k19 = 1;