k1 = 23/100;
k2 = 9/20;
k3 = 11/500000000;
k4 = 11/500000000;
k5 = 1/100;
k6 = 1/100;
k7 = 1;
k8 = 2;
k9 = 2;
k10 = 2;
k11 = 1;