回复：Haha, that's fun

来源: aisanguo 于 2009-10-01 09:40:47 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (37 bytes)
回答: 16 ways in fact 回复：1,6, 8, 10 由 火球魔法 于 2009-10-01 09:18:43

6(10/8-1) is also a non-trivial one.

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