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put six on each side .. take the heaviler side and put three on each side
& O! J% z- W: g; B8 D: s: J4 t公仔箱論壇take two balls out of the heaviler side and put on each side
* I- a8 |9 I7 B" S, Y( w5.39.217.77:8898if they r the same the reminder is the heavy ball otherwise u know which one is the heavy ball