$15
8 ~/ l4 V9 u" ]; }0 X% ttvb now,tvbnow,bttvb=15糖+15紙; r1 U( _ _9 ^) S- h7 J
=15糖+5糖+5紙(3紙+2紙)+ \$ ]& ?, G8 Y# C& y$ a. U7 W
=15糖+5糖+((1糖+1紙)+2紙)tvb now,tvbnow,bttvb. c1 Z5 J+ q5 V' T% A8 P. a3 ?' t# i
=21糖+3紙tvb now,tvbnow,bttvb/ r1 Q3 o Q/ Q4 {8 V4 ]3 `
=22糖+1紙 |