jiange's submissions for 1624 序列问题

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jiange
on July 16, 2013, 12:46 p.m.
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jiange
on July 16, 2013, 12:41 p.m.
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160.00 KB
jiange
on July 16, 2013, 12:28 p.m.
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160.00 KB
jiange
on July 16, 2013, 12:21 p.m.
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160.00 KB