k1 = 11/50;
k2 = 21/250000000;
k3 = 1/2500000;
k4 = 79000;
k5 = 99/10000000000;
k6 = 33/100;
k7 = 12500000;
k8 = 33/500000000;
k9 = 33/50000000;
k10 = 52000;
k11 = 1;