12 balls names A B C D E F G H I J K L
. ?7 C$ W2 A; }9 i* L( xtvb now,tvbnow,bttvb1St A B C D : E F G H if balance
+ D; V/ T6 c( x* d" Cos.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)
' H( T) P" ?/ a- d2 Q0 m& s F) Ftvb now,tvbnow,bttvb3rd A (or either A-J) : K if again balance 3rd I : J (the lighter is different)! ]. g9 k* h" E( K9 [0 P
L is different |