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100块呀~~~
197... wat is the answer?tvb now,tvbnow,bttvb  L4 |; k* O7 x# [

1 e4 Q% C% Z, H5 [* \4 s% fboss's loss:
% c2 Z" L7 `. G# K! ]100 return to neighbour5.39.217.77" h' D( ]" z, Q0 Y' f* M4 Z, E
79 return to buyertvb now,tvbnow,bttvb1 X, @- ^, D% X0 C0 a
18 cost of product8 W2 h) B, `+ f  g! E
= 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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