fellatioho

put 3 balls on each side, tvb now,tvbnow,bttvb/ v' F- c% u) u: t6 ~" N/ q9 j
if balance, we can prove that all 6 balls on the 天平 is normal, % v5 \& y7 q' s* }/ q% e, w
if not balance, we can prove that the 6 balls outside the 天平 is normal.
/ z$ s5 F) o. \. ?3 k$ y+ b公仔箱論壇then use the proved-normal ball on one side and put the other ball on other side
8 ]2 F* s" N- A' z: Q3 h. Cto determine the abnormal is heavy and light