i know!
; F& A& A; X2 d5 u' n7 G- U' etvb now,tvbnow,bttvbwhen they can have 15 mins discussion.
8 L/ Y4 w4 u3 F6 Q5.39.217.77:8898make 1 of them to do a specific job whcih is countingtvb now,tvbnow,bttvb. J8 q% k3 X: b4 }8 } E1 }
only him can turn on off off the light.
7 Q2 l0 Z0 ^: X. V6 K4 e2 btvb now,tvbnow,bttvbBasically, if you are the first time to get in the room, turn on the light,
* v% ?* ?! o, n4 K% T9 G, k' hthen wait for "the special man" to turn the light off....tvb now,tvbnow,bttvb! X6 Q5 c! H0 n% |+ J u* p' I
when "the special man" count in up to 30 (included himself)' [; u8 D2 |- f$ Y0 E( T
then it is done! |