n=4000;
m=15;
V=[821, 422, 458, 500, 200, 430, 530, 239, 630, 500, 220, 430, 400, 400, 500];
P=[3, 5, 5, 3, 2, 4, 3, 3, 4, 2, 3, 3, 5, 5, 3];