[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
[1, 2, 3, 4, 6, 5, 7, 8, 9, 10]
1 2 3 4 6 7 5 8 9 10