k1 = 0; k2 = 0; k3 = 1; k4 = 1/5; k5 = 1/20; k6 = 19/50000; k7 = 19/50000; k8 = 1/62500; k9 = 3/12500; k10 = 19/50000; k11 = 1/20; k12 = 1/200; k13 = 3/12500; k14 = 1/200; k15 = 3/12500; k16 = 5/2; k17 = 10;