k1 = 1/2; k2 = 1/20; k3 = 1/5; k4 = 1/25; k5 = 4/5; k6 = 3/10; k7 = 1/10; k8 = 12/5; k9 = 1/10; k10 = 5; k11 = 2/5; k12 = 6/5; k13 = 1/50; k14 = 3/5; k15 = 1/2; k16 = 1;