put six on each side first
9 |. t" _6 Q* w- A
$ s/ o# b& s4 L; n* Wfrom the heavier six, split it to three on each side, {$ s# ~# F' d1 X/ w! p
+ i7 h( j& J0 \: B. ]公仔箱論壇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 |