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100块呀~~~
197... wat is the answer?1 f: }0 f# c! P% T5 C) ^

1 w5 n/ B) `/ `boss's loss:
5 R& ]+ ?3 Z$ U% Z5 c5.39.217.77100 return to neighbour
; g" d' y' n% {8 x# p79 return to buyertvb now,tvbnow,bttvb4 o* p  w, F2 _# B% d5 q, F
18 cost of product
, u6 D. ~) K0 q8 r1 g* X5.39.217.77= 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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