pure math
7 L: K1 V5 t Q O# z. |& n2 V公仔箱論壇
% @( x8 ~; s4 ~' ~) [7 U/ J" [tvb now,tvbnow,bttvb[250(80x+1)+2y-250]/2 = (250*80x+2y)/2 = (2000x+2y)/2 = 1000x+y5 h7 x! C( \; s0 q- h
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if x = 111 y = 2222, you number is 111-2222 |