21, 30, 31, 33, 38, 40, 41, 42
21, 30, 31, 33, 38, 40, 41, 42, 1, 2, 3
21, 30, 31, 33, 38, 40, 41, 42, 1, 2, 3, 1, 10, 15, 16, 17, 18, 2, 20, 22, 3, 5, 7, 8