s = array1d(1..225, [0, 0, 7, 12, 4, 0, 10, 0, 0, 11, 0, 0, 14, 0, 0, 0, 0, 10, 0, 2, 5, 13, 0, 0, 0, 0, 11, 9, 7, 0, 8, 1, 4, 9, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 10, 0, 7, 0, 0, 10, 0, 0, 0, 0, 0, 3, 8, 2, 1, 12, 0, 5, 0, 0, 12, 0, 11, 0, 3, 0, 0, 13, 10, 0, 0, 12, 0, 0, 0, 0, 0, 5, 13, 11, 4, 0, 9, 0, 14, 0, 1, 12, 0, 3, 11, 0, 7, 0, 0, 2, 0, 0, 0, 0, 6, 9, 3, 0, 4, 0, 0, 0, 0, 8, 14, 0, 0, 0, 5, 0, 0, 0, 0, 0, 6, 14, 1, 5, 7, 8, 0, 0, 0, 10, 0, 0, 0, 12, 2, 0, 8, 3, 9, 0, 1, 11, 0, 0, 0, 0, 0, 0, 5, 0, 0, 13, 0, 14, 0, 0, 8, 3, 0, 2, 4, 13, 2, 0, 8, 0, 0, 0, 4, 1, 0, 6, 0, 0, 0, 3, 0, 0, 0, 0, 0, 11, 0, 12, 14, 3, 1, 5, 8, 0, 0, 0, 4, 0, 0, 1, 3, 2, 0, 0, 0, 0, 6, 13, 0, 0, 0, 0, 2, 5, 0, 0, 0, 8, 6, 0, 14, 0, 11, 0, 13]);
n = 15;