2
0
4
4
2
0
6
2
2
4
0
2
0
2
0
0
2
0
2
4
0
0
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2
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2
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4
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6
0
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2
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0
2
0
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12
0
2
2
8
4
2
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2
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0
4
0
2
2
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6
0
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4
0
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4
2
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2
0
2
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4
2
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4
10
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2
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4
2
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0
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6
2
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11
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2
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17
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0
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2
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2
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2
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2
6
0
8
2
6
0
2
4
6
4
2
9
2
4
2
