12 balls names A B C D E F G H I J K L
' k% Y$ v5 f& A2 q. z3 ]! L9 I5.39.217.77:88981St A B C D : E F G H if balance H" D) C( q0 G4 B, Y4 ~( ~
2nd 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)tvb now,tvbnow,bttvb- L. ]: B2 e% _2 r/ \
3rd A (or either A-J) : K if again balance 3rd I : J (the lighter is different)2 O- o# y) \; N3 N$ [) O. r; _
L is different |