73$ bcus shoe = 15$ . K3 J3 B5 M1 C2 S5.39.217.77:8898 the boss paid to customer change = 29$5.39.217.77:8898- ?- N4 v+ a: b% d. b& z) g
the boss paid back to other ppl = 29$ ' q y( e* b+ T6 [公仔箱論壇+ g6 n( t9 L A$ P- Q1 [7 v3 c
so, 15$ + 29$ + 29$ = 73$