12 balls names A B C D E F G H I J K L
$ p! X' p& v9 F! t: ]1St A B C D : E F G H if balance
2 p9 T' j# C; L: O: Z% |os.tvboxnow.com2nd A B (or either 2 of A-H) : I J if again balance if A B > I J (implies the different is light ball is I or J)
" K% r2 h$ |9 Oos.tvboxnow.com3rd A (or either A-J) : K if again balance 3rd I : J (the lighter is different)
, X% b9 P T* L* P7 q. d* ftvb now,tvbnow,bttvbL is different |