pure math公仔箱論壇6 |2 h! y! H3 c9 t) u: ~# h u) L5 T
& ^+ m9 n2 Q- D8 B4 r! @0 M3 ?TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。[250(80x+1)+2y-250]/2 = (250*80x+2y)/2 = (2000x+2y)/2 = 1000x+y
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5 q7 p! M5 I( Q+ ]" \if x = 111 y = 2222, you number is 111-2222 |