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23#
發表於 2009-3-26 01:29 PM
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pure math5.39.217.76' s N! _. R; `2 p5 X0 w
$ l* C n$ e& @1 `- J7 J, x公仔箱論壇[250(80x+1)+2y-250]/2 = (250*80x+2y)/2 = (2000x+2y)/2 = 1000x+y) J' A1 w2 a# J- c
. M4 w q! Q* [. j: F' v9 W% Y" cif x = 111 y = 2222, you number is 111-2222 |
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