陈海峰's submissions for 1208 排列对称串

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陈海峰
on Feb. 1, 2010, 6:31 p.m.
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176.00 KB
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陈海峰
on Feb. 1, 2010, 6:27 p.m.
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176.00 KB
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陈海峰
on Feb. 1, 2010, 6:24 p.m.
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176.00 KB