k1 = 0; k2 = 1; k3 = 2; k4 = 3/10; k5 = 1/10; k6 = 1/2; k7 = 21/40; k8 = 100; k9 = 1/100; k10 = 10; k11 = 1/20; k12 = 0; k13 = 1/100; k14 = 21/400; k15 = 20; k16 = 0; k17 = 1/10; k18 = 1; k19 = 1; k20 = 1/2;