20
2-4
10
996
2
20
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20
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10
997
1
20
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10
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1
20
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1
20
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10
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0
20
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10
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2
20
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10
997
0
20
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2
20
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10
997
1
20
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10
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0
20
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10
996
1
20
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10
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0
20
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10
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1
20
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10
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1
20
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10
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1
20
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10
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2
20
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10
996
1
20
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10
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0
20
2-4
10
996
2
20
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10
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1
20
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10
996
1
20
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10
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0
20
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10
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1
20
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10
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1
20
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10
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1
20
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10
996
1
20
2-4
10
996
0
20
2-4
10
997
4
20
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2
20
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10
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2
20
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10
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4
20
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10
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4
20
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10
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4
20
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1
20
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1
20
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10
996
2
20
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3