fellatioho

put 3 balls on each side,
; {" F) N$ @5 ^6 f! u) p  Q, Q5.39.217.76if balance, we can prove that all 6 balls on the 天平 is normal, 4 ?6 i) W  V# N# g8 F, ^
if not balance, we can prove that the 6 balls outside the 天平 is normal.
" R) Q! g7 @2 F) A. f0 l公仔箱論壇then use the proved-normal ball on one side and put the other ball on other side
0 s1 N' U  W( A% w% w# itvb now,tvbnow,bttvbto determine the abnormal is heavy and light