0
2
0
2
0
2
0
4
0
4
0
2
4
4
2
2
0
2
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2
0
2
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2
2
2
0
2
0
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2
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2
0
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2
4
2
2
2
2
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4
0
0
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2
0
0
2
2
2
0
2
0
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2
0
2
0
0
0
2
2
2
7
4
0
0
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4
0
4
0
0
0
12
2
0
2
2
0
2
2
2
0
2
4
4
2
2
2
4
2
2
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7
2
0
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2
0
2
2
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2
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0
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0
0
6
0
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0
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4
2
0
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2
0
2
0
2
2
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2
8
0
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0
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0
0
2
8
4
2
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2
0
2
2
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2
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0
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0
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0
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0
9
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0
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2
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0
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4
2
0
0
2
2
2
2
2
0
2
2
2
0
0
2
0
2
2
