2, 1, 3, 2, 4, 1, 1, 3, 5, 2, 6, 4, 6, 1, 4, 3, 7, 5, 8, 2, 5, 6, 8, 1, 2, 4, 9, 3, 10, 7, 9, 5, 3, 6, 10, 8, 7, 1, 11, 2, 12, 4, 1, 9, 11, 5, 2, 3, 12, 6, 4, 10, 13, 8, 14, 7, 4, 1, 10, 9, 13, 11, 8, 5, 14, 2, 7, 3, 15, 12, 16, 6, 2, 4, 7, 1, 3, 10, 15, 9, 12, 13, 16, 11, 6, 8, 17, 5, 18, 14