k1 = 1031067/5000000;
k2 = 1069629/500;
k3 = 1648773/1000000;
k4 = 7/15625;
k5 = 76/125;
k6 = 309/1000;
k7 = 1/1000;
k8 = 3/10;
k9 = 1;