[0, 0, 0, 1, 0]
[0, 0, 0, 1, 2]
[0, 0, 3, 1, 2]
[0, 4, 3, 1, 2]
[3, 4, 5, 1, 2]
[3, 4, 5, 1, 2]
3 4 5 1 2