送交者: foresight 于 2010-01-25, 17:07:51:

回答: 9887, 9987 is divisible by 3. 由 steven 于 2010-01-25, 16:16:56:

• 是我看错了 (无内容) - foresight (0 bytes) 2010-01-25, 17:09:44 (407917)

加跟贴