0
1
2
30
4
5
6
7
8
9
1000
1000
1000
30
1000
1000
1000
1000
1000
1000
1000
1000
1000
30
1000
50
1000
1000
1000
1000
1000
1000
1000
30
1000
50
1000
1000
1000
1000
1000
1000
1000
30
1000
50
1000
70
1000
1000