k1 = 1; k2 = 1; k3 = 189/50; k4 = 47/4; k5 = 6/25; k6 = 39/100; k7 = 1/2; k8 = 126/25; k9 = 21/25; k10 = 61/20; k11 = 8; k12 = 3/20; k13 = 59/1000; k14 = 3/4; k15 = 3; k16 = 5; k17 = 1/10; k18 = 41/50; k19 = 17/25;