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Mar 8, 2012 at 17:35 vote accept Alexander Chervov
Jan 11, 2012 at 10:48 answer added Igor Rivin timeline score: 2
Jan 11, 2012 at 10:42 history edited Alexander Chervov CC BY-SA 3.0
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Jan 11, 2012 at 10:37 history asked Alexander Chervov CC BY-SA 3.0