pure math
4 L5 n2 i3 W a3 t- B) X# _tvb now,tvbnow,bttvb
1 V4 j& S4 x: C[250(80x+1)+2y-250]/2 = (250*80x+2y)/2 = (2000x+2y)/2 = 1000x+y
" ?) k, K4 r. C# t2 M3 Z5 l" C: n
; L& Y2 k& |; i' S) |* ktvb now,tvbnow,bttvbif x = 111 y = 2222, you number is 111-2222 |