Smartzboy

73$ bcus shoe = 15$公仔箱論壇" Y: y# @) i4 y: u+ K' V
             the boss paid to customer change = 29$6 G5 i  N4 _- a0 ~4 l" y0 R; Z% u, d
            the boss paid back to other ppl = 29$公仔箱論壇" D" D. u/ s- M0 Z( u+ Z
5.39.217.77+ Y6 b6 V  u7 f5 n& ^0 H, P5 [) Y( S
so, 15$ + 29$ + 29$ = 73$