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2
13
5
15
11
31 1
32 2 4 2 1
5 6 1 1
7 8
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2 9 10 11
12
2 2
1 1 2 2 1 2 2 2 2 2 2 2 2
20
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1516
17 18 19
3 3 4 5 6
9 10 11
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