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100块呀~~~
197... wat is the answer?3 S+ B; _- Z: d7 o! f. g( F

0 r- D. c! }( M* `8 v1 p7 x6 s5.39.217.77:8898boss's loss:' y. ?8 d/ N  x( P
100 return to neighbour
# U& T* q! o0 a- w/ ~( K; ]8 F/ |tvb now,tvbnow,bttvb79 return to buyer5.39.217.77:8898* h& E5 b/ c, |+ z
18 cost of product
7 o/ Y0 j: u6 K1 @) g: ]= 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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