6 at a side for first公仔箱論壇; q2 o! W$ B, ~( @( S
which 1 heavie. s3 i( @ G3 K z
then 3 by the side
$ o. y6 w) |( N( C" Q7 _ G5 Dos.tvboxnow.comu know which 1 heavie
8 o$ O9 s6 q3 ^/ Hleft 3 pick 2公仔箱論壇% N, z* V( x0 X/ S9 X
if balance then the third 1 is the asnwer if not balance the 1 u can guess la...|公仔箱論壇8 P. C% S, h: w) e
its took me 2 minit to fugure it out |