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pure math
1 g; u( V! U! f5.39.217.77
& m" v1 E% {0 Atvb now,tvbnow,bttvb[250(80x+1)+2y-250]/2 = (250*80x+2y)/2 = (2000x+2y)/2 = 1000x+y
* @( n" D# q' Y! v6 W: j1 _( h公仔箱論壇
' |7 y5 M5 g4 i" |公仔箱論壇if x = 111 y = 2222, you number is 111-2222
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