10, 12, 16, 1а, 2, 2а, 4, 6, 8
10, 12, 16, 1а, 2, 2а, 4, 6, 8, 1, 10, 11, 12, 13, 14, 15, 17, 19, 2, 21, 3, 4, 5, 6, 7, 8, 9