17 lines
66 B
Text
17 lines
66 B
Text
2
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4 6
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1 2
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1 3
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1 4
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2 3
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2 4
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3 4
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6 8
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2 5
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5 4
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4 3
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4 1
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1 3
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2 3
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2 6
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5 6
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