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5
7
1
8
7
9
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3
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6
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5
5
5
6
4
2
1
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4
1
3
6
9
1
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2
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7
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5
7
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1
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5
3
7
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6
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7
5
1
5
5
4
9
1
6
4
2
1
3
5
1
9
6
2
1
2
3
4
5
6
7
8
9
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