3
2
2
6
3
3
2
4
3
2
3
3
3
3
3
4
7
2
6
3
4
5
4
4
4
4
4
2
4
3
2
2
2
2
2
4
2
3
3
3
3
2
2
5
3
2
3
3
4
3
3
2
2
3
3
3
4
4
3
3
3
3
3
3
3
5
2
6
4
5
4
8
6
2
2
3
4
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6
4
5
3
4
4
4
3
4
4
4
5
5
6
4
4
6
5
3
3
4
3
5
占位居中
