put six on each side first! \" J* f) N9 \# s( z& T& Y
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from the heavier six, split it to three on each side+ P# ~# h$ X* H, U
公仔箱論壇" p% n2 v* l& K9 s
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 |