1 Hello [] 2 Hello [] 3 Hello [0,1,2] 4 [0,1,2,3] 5 [0,1,2,3,4] 1 Hello 2 Hello 3 Hello 4 5 1 [] 2 [] 3 [0,1,2] 4 [0,1,2,3] 5 [0,1,2,3,4] Hello [] Hello [] Hello [0,1,2] [0,1,2,3] [0,1,2,3,4] 1 2 3 4 5 3 Hello [0,1,2] 4 [0,1,2,3] 5 [0,1,2,3,4] 3 Hello 4 5 3 [0,1,2] 4 [0,1,2,3] 5 [0,1,2,3,4] Hello [0,1,2] [0,1,2,3] [0,1,2,3,4] 3 4 5 1 2 3 aaa 2 3 4 bbb ccc 5 6 7 ddd 2 3 4 bbb ccc 5 6 7 ddd