0
0
1
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2
0
0
1
0
0
1
0
0
2
0
0
1
0
0
1
0
0
0
1
0
0
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
1
1
0
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2
0
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1
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1
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2
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0
