12 times ; r9 |" ^ A( I% E + b# P9 H) o X1 v( Oeach time 4 person but 1 need to back to pick up the other 3 % |0 w1 C( L* R" U( N, E) w/ Vreturn x 10 = 30 people公仔箱論壇$ v% x0 J# z6 G- j5 K J
1 time return ! g2 |; G, J4 _ y6 H7 S/ Htvb now,tvbnow,bttvb2 person on last time : Q& b$ i+ E! E- `
total : 12 times