put six on each side first
# N: ~# |4 D2 k7 W9 _8 C- O1 p# R3 p3 x0 C" U# G5 e
from the heavier six, split it to three on each side
4 ]+ {9 [: F3 L' m9 ]公仔箱論壇4 o m/ z* r' _* b2 ~
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 |