n = 21;
p = array2d(1..21, 0..21, [
0, -1000, -3, -1000, -1000, -1000, -1000, -1000, -4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -3, -1000, -4, -1000, -1000, -1000, -1000, -1000, 5, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -4, -1000, -4, -1000, -1000, -1000, -1000, -1000, -3, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -4, -1000, -3, -1000, -1000, -1000, -1000, -1000, 7, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -3, -1000, 2, -1000, -1000, -1000, -1000, -1000, -4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, 2, -1000, 4, -1000, -1000, -1000, -1000, -1000, 7, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, 4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -7, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -4, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 4, -1000, -1000, -1000, -1000, -1000, -7, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, 5, -1000, -1000, -1000, -1000, -1000, 4, -1000, 6, -1000, -1000, -1000, -1000, -1000, -4, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -3, -1000, -1000, -1000, -1000, -1000, 6, -1000, -5, -1000, -1000, -1000, -1000, -1000, -7, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, 7, -1000, -1000, -1000, -1000, -1000, -5, -1000, 2, -1000, -1000, -1000, -1000, -1000, 2, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -4, -1000, -1000, -1000, -1000, -1000, 2, -1000, 5, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, 7, -1000, -1000, -1000, -1000, -1000, 5, -1000, 3, -1000, -1000, -1000, -1000, -1000, -4, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -7, -1000, -1000, -1000, -1000, -1000, 3, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -7, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 3, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -4, -1000, -1000, -1000, -1000, -1000, 3, -1000, 5, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -7, -1000, -1000, -1000, -1000, -1000, 5, -1000, 2, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 2, -1000, -1000, -1000, -1000, -1000, 2, -1000, 8, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, 8, -1000, 6, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -4, -1000, -1000, -1000, -1000, -1000, 6, -1000, 5, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 0, -1000, -1000, -1000, -1000, -1000, 5, -1000 ]);