0

1

2

0

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0

0

2

3

0

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0

0

0

4

0

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0

0

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0

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0

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0

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0

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0

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0

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0

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5

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0

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0

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0

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0

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0

0

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0

0

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0

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4

0

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0

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3

0

1

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0

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