k1 = 1;
k2 = 1/100;
k3 = 121/1000;
k4 = 100;
k5 = 1/5;
k6 = 337/25;
k7 = 1/50;
k8 = 1/100;
k9 = 6/5;
k10 = -1;
k11 = 1;