i think its like this: 12乒乓球 oooooooooooo 天平 |$ W* n; R/ T+ h
1)6乒乓球 | 6乒乓球公仔箱論壇& H6 K( y8 L- T' o7 \ |6 m
2) take the heavier side then 3乒乓球 | 3乒乓球 4 \/ ]0 q, k. P4 t# O3) take the heavier side then 1乒乓球(A) | 1乒乓球(B) with extra 1乒乓球(C) / U* k5 e _* iif A > B then A is the one 1 G7 ]( h) J' Q6 c( [5.39.217.77:8898if B > A then B is the one( R- n( Y$ J' H6 M+ v
if A = B then C is the one