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23#
發表於 2009-3-26 01:29 PM
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pure math
% x/ a8 b. _9 W" e1 N f" T" b2 i. l
1 H# f O& Z7 jtvb now,tvbnow,bttvb[250(80x+1)+2y-250]/2 = (250*80x+2y)/2 = (2000x+2y)/2 = 1000x+y
5 Z5 c6 @* f h! B; u2 O( [5.39.217.77:8898
/ C$ |4 _5 k. U8 B. o: xif x = 111 y = 2222, you number is 111-2222 |
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