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2k (1938.2)
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802
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Not visited
You haven't seen this problem yet.
809
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Not visited
You haven't seen this problem yet.
810
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Not visited
You haven't seen this problem yet.
811
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Not visited
You haven't seen this problem yet.
812
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Not visited
You haven't seen this problem yet.
813
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Not visited
You haven't seen this problem yet.
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Visited
You have seen this problem but have not solved it.
815
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Not visited
You haven't seen this problem yet.
816
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Not visited
You haven't seen this problem yet.
817
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Not visited
You haven't seen this problem yet.
818
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Not visited
You haven't seen this problem yet.
819
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Not visited
You haven't seen this problem yet.
861
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Not visited
You haven't seen this problem yet.
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