k1 = 10;
k2 = 0;
k3 = 10;
k4 = 1/5;
k5 = 10;
k6 = 1;
k7 = 10;
k8 = 1/10;
k9 = 3/2;
k10 = 3/5;
k11 = 1/10;
k12 = 1;
k13 = 10;
k14 = 1/10;
k15 = 4/5;
k16 = 11/10;
k17 = 3/10;
k18 = 1/10;
k19 = 1;
k20 = 1/1000;
k21 = 1;