a = [1, 2, 3, 4, 5, 1, 2, 3, 1, 2, 3, 2, 3, 4, 2, 3, 4, 2, 3, 4, 3, 4, 5, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 1, 2, 3, 4, 5, 6, 2, 3, 4, 2, 3, 4, 3, 4, 5, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 2, 3, 4, 5, 6, 7, 3, 4, 5, 1, 2, 3, 4, 5, 6, 2, 3, 4, 2, 3, 4, 3, 4, 5, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 3, 4, 5, 5, 6, 7, 4, 5, 6, 2, 3, 4, 5, 6, 7, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 4, 5, 6, 6, 7, 8, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 2, 3, 4, 5, 6, 7, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 4, 5, 6, 6, 7, 8, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 1, 2, 3, 4, 5, 6, 2, 3, 4, 2, 3, 4, 3, 4, 5, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 3, 4, 5, 5, 6, 7, 4, 5, 6, 2, 3, 4, 5, 6, 7, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 4, 5, 6, 6, 7, 8, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 2, 3, 4, 5, 6, 7, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 4, 5, 6, 6, 7, 8, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 2, 3, 4, 5, 6, 7, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 4, 5, 6, 6, 7, 8, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 1, 2, 3, 4, 5, 6, 2, 3, 4, 2, 3, 4, 3, 4, 5, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 2, 3, 4, 5, 6, 7, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 3, 4, 5, 6, 7, 8, 4, 5, 6, 2, 3, 4, 5, 6, 7, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 4, 5, 6, 6, 7, 8, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 4, 5, 6, 6, 7, 8, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 2, 3, 4, 5, 6, 7, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 4, 5, 6, 6, 7, 8, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 1, 2, 3, 4, 5, 6, 2, 3, 4, 2, 3, 4, 3, 4, 5, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 2, 3, 4, 5, 6, 7, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 3, 4, 5, 6, 7, 8, 4, 5, 6, 2, 3, 4, 5, 6, 7, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 4, 5, 6, 6, 7, 8, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 2, 3, 4, 5, 6, 7, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 2, 3, 4, 5, 6, 7, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 3, 4, 5, 5, 6, 7, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 4, 5, 6, 6, 7, 8, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 4, 5, 6, 6, 7, 8, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 4, 5, 6, 6, 7, 8, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 7, 8, 9, 8, 9, 10, 8, 9, 10, 6, 7, 8, 9, 10, 11, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 7, 8, 9, 8, 9, 10, 8, 9, 10, 6, 7, 8, 9, 10, 11, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 2, 3, 4, 5, 6, 7, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 4, 5, 6, 7, 8, 9, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 4, 5, 6, 6, 7, 8, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 7, 8, 9, 8, 9, 10, 8, 9, 10, 6, 7, 8, 9, 10, 11, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 7, 8, 9, 8, 9, 10, 8, 9, 10, 6, 7, 8, 9, 10, 11, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 7, 8, 9, 8, 9, 10, 8, 9, 10, 2, 3, 4, 5, 6, 7, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 4, 5, 6, 7, 8, 9, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 4, 5, 6, 6, 7, 8, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 7, 8, 9, 8, 9, 10, 8, 9, 10, 5, 6, 7, 8, 9, 10, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 5, 6, 7, 7, 8, 9, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 7, 8, 9, 8, 9, 10, 8, 9, 10, 5, 6, 7, 8, 9, 10, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 7, 8, 9, 8, 9, 10, 8, 9, 10, 7, 8, 9, 9, 10, 11, 8, 9, 10, 6, 7, 8, 9, 10, 11, 7, 8, 9, 7, 8, 9, 8, 9, 10, 8, 9, 10, 5, 6, 7, 8, 9, 10, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 7, 8, 9, 8, 9, 10, 8, 9, 10, 6, 7, 8, 9, 10, 11, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 7, 8, 9, 8, 9, 10, 8, 9, 10, 5, 6, 7, 8, 9, 10, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 7, 8, 9, 8, 9, 10, 8, 9, 10, 6, 7, 8, 9, 10, 11, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 7, 8, 9, 8, 9, 10, 8, 9, 10, 7, 8, 9, 9, 10, 11, 8, 9, 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11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 10, 11, 12, 12, 13, 14, 11, 12, 13, 9, 10, 11, 12, 13, 14, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 9, 10, 11, 12, 13, 14, 10, 11, 12, 9, 10, 11, 11, 12, 13, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 9, 10, 11, 12, 13, 14, 10, 11, 12, 9, 10, 11, 11, 12, 13, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 7, 8, 9, 10, 11, 12, 8, 9, 10, 8, 9, 10, 9, 10, 11, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 9, 10, 11, 11, 12, 13, 10, 11, 12, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 9, 10, 11, 11, 12, 13, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 9, 10, 11, 12, 13, 14, 10, 11, 12, 6, 7, 8, 9, 10, 11, 7, 8, 9, 7, 8, 9, 8, 9, 10, 8, 9, 10, 8, 9, 10, 9, 10, 11, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 7, 8, 9, 10, 11, 12, 8, 9, 10, 8, 9, 10, 9, 10, 11, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 8, 9, 10, 11, 12, 13, 9, 10, 11, 7, 8, 9, 10, 11, 12, 8, 9, 10, 8, 9, 10, 9, 10, 11, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 9, 10, 11, 11, 12, 13, 10, 11, 12, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 9, 10, 11, 11, 12, 13, 10, 11, 12, 7, 8, 9, 10, 11, 12, 8, 9, 10, 8, 9, 10, 9, 10, 11, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 7, 8, 9, 10, 11, 12, 8, 9, 10, 8, 9, 10, 9, 10, 11, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 8, 9, 10, 11, 12, 13, 9, 10, 11, 8, 9, 10, 10, 11, 12, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 9, 10, 11, 12, 13, 14, 10, 11, 12, 9, 10, 11, 11, 12, 13, 10, 11, 12, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 9, 10, 11, 12, 13, 14, 10, 11, 12, 9, 10, 11, 11, 12, 13, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 9, 10, 11, 12, 13, 14, 10, 11, 12, 9, 10, 11, 11, 12, 13, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 9, 10, 11, 12, 13, 14, 10, 11, 12, 9, 10, 11, 11, 12, 13, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 9, 10, 11, 12, 13, 14, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 10, 11, 12, 12, 13, 14, 11, 12, 13, 9, 10, 11, 12, 13, 14, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 11, 12, 13, 12, 13, 14, 12, 13, 14, 9, 10, 11, 12, 13, 14, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 11, 12, 13, 12, 13, 14, 12, 13, 14, 10, 11, 12, 13, 14, 15, 11, 12, 13, 10, 11, 12, 12, 13, 14, 11, 12, 13, 11, 12, 13, 12, 13, 14, 12, 13, 14, 9, 10, 11, 12, 13, 14, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 11, 12, 13, 12, 13, 14, 12, 13, 14, 10, 11, 12, 13, 14, 15, 11, 12, 13, 10, 11, 12, 12, 13, 14, 11, 12, 13, 11, 12, 13, 12, 13, 14, 12, 13, 14, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 10, 11, 12, 12, 13, 14, 11, 12, 13, 9, 10, 11, 12, 13, 14, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 10, 11, 12, 12, 13, 14, 11, 12, 13, 11, 12, 13, 12, 13, 14, 12, 13, 14, 10, 11, 12, 13, 14, 15, 11, 12, 13, 7, 8, 9, 10, 11, 12, 8, 9, 10, 8, 9, 10, 9, 10, 11, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 11, 12, 13, 12, 13, 14, 12, 13, 14, 9, 10, 11, 12, 13, 14, 10, 11, 12, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 10, 11, 12, 12, 13, 14, 11, 12, 13, 9, 10, 11, 12, 13, 14, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 9, 10, 11, 12, 13, 14, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 10, 11, 12, 12, 13, 14, 11, 12, 13, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 11, 12, 13, 12, 13, 14, 12, 13, 14, 9, 10, 11, 12, 13, 14, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 9, 10, 11, 12, 13, 14, 10, 11, 12, 9, 10, 11, 11, 12, 13, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 11, 12, 13, 12, 13, 14, 12, 13, 14, 10, 11, 12, 13, 14, 15, 11, 12, 13, 10, 11, 12, 12, 13, 14, 11, 12, 13, 9, 10, 11, 12, 13, 14, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 11, 12, 13, 12, 13, 14, 12, 13, 14, 9, 10, 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11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 10, 11, 12, 11, 12, 13, 11, 12, 13, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 8, 9, 10, 11, 12, 13, 9, 10, 11, 9, 10, 11, 10, 11, 12, 10, 11, 12, 9, 10, 11, 11, 12, 13, 10, 11, 12, 3, 4, 5, 6, 7, 8, 4, 5, 6, 4, 5, 6, 5, 6, 7, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 7, 8, 9, 8, 9, 10, 8, 9, 10, 5, 6, 7, 8, 9, 10, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 5, 6, 7, 6, 7, 8, 6, 7, 8, 6, 7, 8, 7, 8, 9, 7, 8, 9, 6, 7, 8, 8, 9, 10, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 6, 7]

print(a[int(input()) - 1])


Measured memory_bytes: 76900