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100块呀~~~
197... wat is the answer?6 j/ h9 X! O1 A, n, E

" y/ `& I* b8 p8 Q0 uboss's loss:
2 k0 T/ {$ J6 J* a/ y5 ~公仔箱論壇100 return to neighbour
7 @  @; q  U; W4 c( O0 T3 k; {( {5.39.217.77:889879 return to buyer公仔箱論壇3 E: A" S5 k" B: D0 S8 d# d% a
18 cost of product8 e% K9 U6 n, {( Z
= 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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