put six on each side first
! `0 q# q# w" p& `2 s公仔箱論壇6 u3 [$ H% |7 P7 Y4 B# T
from the heavier six, split it to three on each side5.39.217.771 I) {- ]% m0 |1 q8 G$ S
5.39.217.77& i( s s. c T
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 |