k1 = 4/5;
k2 = 4/5;
k3 = 2/25;
k4 = 9/100;
k5 = 99/100;
k6 = 2/5;
k7 = 4/5;
k8 = 3/5;
k9 = 1/50;
k10 = 3/5;
k11 = 7/10;
k12 = 1;