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15+29+50=94
74????
85+ V# _& s) ^) [5 W+ U0 C; O7 C
29+50+(21-15)=$85
29+15+50=94
44 很简单的题目  那张50换来换去其实可以不用考虑
一共44元
i think is $79
$79????
$44???
我是天才吗? $88
是44大洋
see answer
sure
) K" M* r5 h5 G# c5.39.217.7644
The answer is 44 ?
the answer is..! b! N. K' Z! d' N
94..
4 c" ]$ B, u1 `1 Y15=shoes cost..
$ B% c) y1 G- S& D/ b+ t50= fake money! O& i$ m5 {, _; @  e
29= balance to customer
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