put six on each side first
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; `5 ]7 F! G+ A5 l7 w i: ~* ]公仔箱論壇from the heavier six, split it to three on each side# C: n4 P: X0 ?1 x0 S' o
H ^9 H5 E$ |+ ? J5 @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 |