put six on each side first
7 J1 h1 P" s, @6 i, e: _6 S5 m5 b
from the heavier six, split it to three on each side公仔箱論壇$ W& [1 \1 w8 N7 S
2 l7 U2 I* w! }6 i: W# E
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 |