2, 3, 1, 4, 1, 2, 5, 6, 2, 1, 7, 7, 2, 3, 8, 1, 8, 9, 3, 2, 9, 1, 10, 10, 4, 2, 11, 11, 1, 11, 12, 3, 4, 12, 2, 1, 12, 13, 13, 13, 4, 3, 5, 2, 14, 13, 1, 14, 4, 5, 15, 14, 2, 1, 16, 16, 5, 16, 4, 15, 6, 3, 16, 2, 17, 17, 17, 16, 1, 17, 6, 4, 18, 7, 3, 18, 2, 17, 19, 19, 5, 1, 4, 7, 19, 19, 18, 19
