1, 15, 16, 2, 5, 6, 7
1, 15, 16, 2, 5, 6, 7, 1, 2, 3, 4, 5, 6
1, 15, 16, 2, 5, 6, 7, 1, 2, 3, 4, 5, 6, 1, 10, 11, 15, 16, 17, 18, 3, 4, 7, 8, 8ка