n = 20;
p = array2d(1..20, 0..20, [
0, -1000, 0, -1000, -1000, -1000, 5, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, 0, -1000, -2, -1000, -1000, -1000, -6, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -2, -1000, 4, -1000, -1000, -1000, 1, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, 4, -1000, 3, -1000, -1000, -1000, -6, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, 3, -1000, -1000, -1000, -1000, -1000, 4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, 5, -1000, -1000, -1000, -1000, -1000, 4, -1000, -1000, -1000, -7, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -6, -1000, -1000, -1000, 4, -1000, -5, -1000, -1000, -1000, -6, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, 1, -1000, -1000, -1000, -5, -1000, 1, -1000, -1000, -1000, 1, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -6, -1000, -1000, -1000, 1, -1000, -2, -1000, -1000, -1000, 7, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, 4, -1000, -1000, -1000, -2, -1000, -1000, -1000, -1000, -1000, 4, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -7, -1000, -1000, -1000, -1000, -1000, 7, -1000, -1000, -1000, -5, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -6, -1000, -1000, -1000, 7, -1000, 0, -1000, -1000, -1000, -4, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 1, -1000, -1000, -1000, 0, -1000, 1, -1000, -1000, -1000, 4, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 7, -1000, -1000, -1000, 1, -1000, 6, -1000, -1000, -1000, -2, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 4, -1000, -1000, -1000, 6, -1000, -1000, -1000, -1000, -1000, -4, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -5, -1000, -1000, -1000, -1000, -1000, -5, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -4, -1000, -1000, -1000, -5, -1000, -4, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 4, -1000, -1000, -1000, -4, -1000, 7, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -2, -1000, -1000, -1000, 7, -1000, 9, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -4, -1000, -1000, -1000, 9, -1000 ]);