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