genzo2106

solution:
6 K5 q7 K/ v& Y; O  Y2 D& T7 E公仔箱論壇公仔箱論壇, x) ], U$ I4 Q
1st and 2nd lady go over: 2 mins taken' l3 R' ]" ]0 G0 e
1st lady walk back: 1 mins taken
: E% K/ e# s/ [8 b" \: A2 G$ xtvb now,tvbnow,bttvb3rd and 4th lady go over: 10 mins taken
( y6 |3 J' i" Y5 o- J5.39.217.762nd lady walk back: 2 mins taken/ N2 n# J# s. x8 A8 ]$ ^+ B) _1 O
1st and 2nd lady walk back: 2 mins taken
' ?5 s) R" ^  n+ i+ Htvb now,tvbnow,bttvb( c5 h" P: k3 |! n  F
In total : 17 mins taken!!! Solved!!