k1 = 125000; k2 = 50000000; k3 = 1/10000; k4 = 2000; k5 = 200; k6 = 2/125; k7 = 1000; k8 = 1/4; k9 = 1/4; k10 = 1/4; k11 = 5; k12 = 1/4; k13 = 3/1000000; k14 = 1/2; k15 = 2001/400; k16 = 1600/2001; k17 = 1; k18 = 0;