put 3 balls on each side,
1 z [$ Q& z1 ~+ h) u0 B1 _& pTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。if balance, we can prove that all 6 balls on the 天平 is normal,
+ g, L- t( f& i8 f" [TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。if not balance, we can prove that the 6 balls outside the 天平 is normal.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。3 u, s) p) I$ B0 B+ z2 p
then use the proved-normal ball on one side and put the other ball on other side
+ K S# C6 r7 j3 T3 a4 q- {1 U9 u# ztvb now,tvbnow,bttvbto determine the abnormal is heavy and light |