and thanks for correcting the 20.

Kamioka · 2012-04-12 11:03:51Z

and thanks for correcting the 20.简介

来源: Kamioka 于 2012-04-12 11:03:51 [档案] [博客] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)

回答: 回复：回复：15 is # of combination of 4 numbers out of 6, 20 is 3 out 由泥佛于 2012-04-12 10:35:28

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