7 lines
33 B
Text
7 lines
33 B
Text
0
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1 2
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2 3 5
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1 2 5
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3 2 3 4
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1 4
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-1
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0
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1 2
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2 3 5
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1 2 5
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3 2 3 4
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1 4
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-1
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