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來源: 2014-12-06 09:59:16 [博客] [舊帖] [給我悄悄話] 本文已被閱讀:

Let y=UV=10*u+v then
X*y=10*u*x+v*x
X+y=10*u+v+x

Reverse x+y,we have

(V+x)*10+u = 10*u+v