put six on each side first
5 [# k8 W; z/ j) Q公仔箱論壇
. f a; P7 \. n/ ~+ i9 O6 J5.39.217.77from the heavier six, split it to three on each side
5 S; q/ J3 U2 a/ P( etvb now,tvbnow,bttvbtvb now,tvbnow,bttvb |+ E8 a0 O* V7 e* U# n
then there is three left, put one on each side, if one is heavier then that is it, if they are balanced then last one is heavy one |