2
0
1
1
2
0
1
1
1
0
0
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1
0
0
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2
0
3
0
0
0
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0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
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2
0
0
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1
0
0
0
0
0
0
0
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0
0
0
0
0
0
0
0
0
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0
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0
0