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100块呀~~~
197... wat is the answer?
& w" s+ W* a/ h/ j5 {/ s3 U5.39.217.77- D8 p- B0 N( [- ?
boss's loss:
/ [" M% g2 C, _' V; X: N100 return to neighbour
7 \6 t& \) t1 h2 o0 Otvb now,tvbnow,bttvb79 return to buyer
  J5 S% w" @  s$ }) U: v- w18 cost of product
3 r5 Z% J. [0 s! @' Q公仔箱論壇= 197
197
y 97 R??????
197
97...
97蚊
100+79+18
197????
100(cash)+18(cost)
100(cash)+97(change)+18(cost)+3(profit)
197 or 200
197-200
200-197
Thank you
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