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5
2
2
5
2
3
5
2
1
5
2
< 1
6
3
4-5
6
5
4-5
6
2
4-5
6
4-5
6
3-4
4-5
6
3-4
4-5
6
2
1
7
5
2
7
5
2
7
1-2
2
7
1-2
2
7
1-2
2
7
1-2
2
7
4-8
1-5
8
3-5
4-5