12 balls names A B C D E F G H I J K L
& V" s0 t% @/ R, |3 x5 ?tvb now,tvbnow,bttvb1St A B C D : E F G H if balance tvb now,tvbnow,bttvb& V3 R) Z' ^. B R, b4 n
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)
& C: i! [9 X, A0 P; x" T# I9 y3rd A (or either A-J) : K if again balance 3rd I : J (the lighter is different)
; l! M+ z8 D z U2 b3 Y* f* @L is different |