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1st    6 ball  ---  6 ball
8 R& |* p* }8 f% x! Q* i" F公仔箱論壇2nd, take the heavy side  3 ball  --- 3 ball
6 t7 ?6 \, c( ~* s* Z; ^5.39.217.77third,  take the heavy side, random pick to 1 ball ---- 1 ball
/ ^! p9 F9 f) W& G6 cif which side is heavier, that's the heaveir side/ c0 f' q" j5 k1 W/ r( Y* c; a$ i
if they equal , then the other one is the heavy one