197 is the right answer.
q: B0 |$ F: _; XTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。
4 Z3 T) D( Y' Q6 D5.39.217.77Reason,
1 i7 B: Q3 x* Ktvb now,tvbnow,bttvb
" t, f& P2 ]; \5 ?; F9 M1. $18 costs on Item = -$18
. o |7 T; b! i5.39.217.772. got $100 fake, (no income) , layout $79, = -$799 x' f& @; R9 b& X$ A* w
3. pay back to $100 to that vendor whom exchange fake $100 here -$100
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5 U4 D+ \8 Z+ T2 w, xTherefore, totally, 18+79+100 = 197  |