12 times
% H0 l# U3 [* a4 ]" q* d6 r; f; V) `/ s6 A2 L+ `0 M) s
each time 4 person but 1 need to back to pick up the other 3tvb now,tvbnow,bttvb/ X9 u) }" K; l7 y
return x 10 = 30 people
, R- P& i; N$ r# ^tvb now,tvbnow,bttvb1 time return
' Q% N# R _; Y- X# E2 b公仔箱論壇2 person on last time
8 B6 ^# l6 {# b S/ ]3 j* M0 |公仔箱論壇total : 12 times |