130 --> 031 = 31

回答: Haha, reverse(31)=13, is not 130,萬斤油2014-12-05 14:17:10

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in the question, it says 'each contain the same digits but in re -萬斤油- 給 萬斤油 發送悄悄話 (0 bytes) () 12/05/2014 postreply 15:41:32

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