1, 15, 17, 1а, 2, 3, 4, 5, 6, 9
1, 15, 17, 1а, 2, 3, 4, 5, 6, 9, 3, 7
1, 15, 17, 1а, 2, 3, 4, 5, 6, 9, 3, 7, 13, 1а, 2, 3, 3а, 5, 7, 8, 9