0
2
4
0
4
2
4
2
4
2
2
6
0
2
2
4
0
6
2
2
0
4
2
4
2
0
0
2
0
8
4
0
2
2
2
0
33
0
0
2
4
2
2
2
0
0
0
0
0
2
0
4
2
0
2
8
0
2
2
4
2
0
2
0
0
0
0
0
2
2
2
2
0
0
0
0
2
0
0
0
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2
0
0
2
0
0
2
0
6
0
0
0
0
0
0
0
6
0
4
6
0
0
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4
2
2
0
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0
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0
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4
0
2
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8
0
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6
0
4
0
2
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4
0
2
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2
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8
6
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6
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6
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6
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4
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8
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0
4
6
4
2
2
2
4
2
0
4
2
2
2
0
2
2
6
4
4
0
