k1 = 23/10;
k2 = 700;
k3 = 170;
k4 = 25;
k5 = 110;
k6 = 71000;
k7 = 65;
k8 = 260;
k9 = 5;
k10 = 1;
k11 = 0;
k12 = 163/5;