12 balls names A B C D E F G H I J K Ltvb now,tvbnow,bttvb( c! L; Y- c$ ~8 ~; L9 I/ }% j
1St A B C D : E F G H if balance
& l* _/ ?) b# y2 m* i$ ?5.39.217.762nd 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)
8 P) @, y; J$ ^& [' l0 W. }3rd A (or either A-J) : K if again balance 3rd I : J (the lighter is different)
" U2 j7 `1 n& w5.39.217.76L is different |