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1st    6 ball  ---  6 ball公仔箱論壇6 |+ \( @8 [, u
2nd, take the heavy side  3 ball  --- 3 ball
! s& T. P# h2 V% r& ithird,  take the heavy side, random pick to 1 ball ---- 1 ball
$ k" s* t# ]7 v/ m1 Gif which side is heavier, that's the heaveir side公仔箱論壇# l, u+ U& B+ V  g/ S, v4 ^% n$ N
if they equal , then the other one is the heavy one