k1 = 7/10;
k2 = 49/50;
k3 = 3/10;
k4 = 2/5;
k5 = 1;
k6 = 9/10;
k7 = 2/5;
k8 = 1/5;
k9 = 3/10;
k10 = 29/100;
k11 = 1;
k12 = 17/200;
k13 = 6/5;
k14 = 47/50;
k15 = 3/10;
k16 = 2/5;
k17 = 4/5;
k18 = 0;
k19 = 1;
k20 = 499999999999999/1000000000000000;