k1 = 500;
k2 = 139;
k3 = 17/100;
k4 = 251/10000;
k5 = 423/1000;
k6 = 21/40;
k7 = 1/100;
k8 = 23/20;
k9 = 81/20;
k10 = 837806529940613/1523109748630000;
k11 = 1;