k1 = 167/500;
k2 = 411/500000;
k3 = 79/100;
k4 = 449/100;
k5 = 7/40;
k6 = 23/20;
k7 = 243/500;
k8 = 79/25000;
k9 = 37/2;
k10 = 61/2;
k11 = 1;
k12 = 923/50;