12, 14, 15, 16, 2, 20
12, 14, 15, 16, 2, 20, 1, 12, 2, 4, 5, 9
12, 14, 15, 16, 2, 20, 1, 12, 2, 4, 5, 9, 1, 10, 12, 16, 18, 2, 3, 4, 5, 6, 8, 9