k1 = 1/2000000000;
k2 = 1/2000000000;
k3 = 1;
k4 = 4;
k5 = 2;
k6 = 2400;
k7 = 9/10;
k8 = 14;
k9 = 1;
k10 = 400000000;
k11 = 1;