i know!
) x: S/ C* \( `; {0 C5.39.217.76when they can have 15 mins discussion.
, t/ V& I; N n5.39.217.76make 1 of them to do a specific job whcih is counting0 N! a. `8 g S
only him can turn on off off the light.5.39.217.76$ @7 D" C! Z- x& d; c7 G1 {
Basically, if you are the first time to get in the room, turn on the light,
7 O4 b" Y2 @# [, p# b5.39.217.76then wait for "the special man" to turn the light off....) J) U0 E" u% W9 D8 T C' Y* t4 i
when "the special man" count in up to 30 (included himself)
p# B2 \2 L \- O9 ythen it is done! |