put six on each side first
# S1 n' m7 z/ }( p& w$ Cos.tvboxnow.com
" t; A+ U; `2 d. q% V: L+ v/ efrom the heavier six, split it to three on each side
$ L1 Y" Y, C$ G+ X3 b公仔箱論壇1 M8 \" ~" i3 _" }+ ]
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 |