i know!
7 S" d8 X6 \5 w5.39.217.76when they can have 15 mins discussion.tvb now,tvbnow,bttvb8 p% j# j3 h: L q
make 1 of them to do a specific job whcih is counting# L7 A+ i$ p6 T5 J, X
only him can turn on off off the light. G/ i( ^1 L- ` a0 n
Basically, if you are the first time to get in the room, turn on the light,
' Y- V& q: G( G/ {! g0 Y# ]5.39.217.76then wait for "the special man" to turn the light off....5.39.217.76) U3 Q# v0 ~# r, k) s
when "the special man" count in up to 30 (included himself)5.39.217.768 Z3 R$ @. q3 I
then it is done! |