10 is the answer. I counted wrong.

回答: 答案, 凑出来的, 我也是10一九得九2016-10-09 16:08:11

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谢谢。难道说答案错了? -ssll- 给 ssll 发送悄悄话 (0 bytes) () 10/09/2016 postreply 16:30:19

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