2
4
2
3
5
4
3
2
2
6
2
4
4
7
2
4
3
5
2
2
2
2
2
2
2
3
2
2
2
2
2
3
2
2
3
2
2
2
2
3
3
2
2
7
3
6
2
3
3
2
5
2
2
2
3
2
3
3
5
3
3
2
2
3
2
4
3
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