12 balls names A B C D E F G H I J K L: E7 b5 @8 D2 C: J, `/ ~
1St A B C D : E F G H if balance
8 d% R2 E0 E: B' x% p5.39.217.772nd 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)
/ ~: @% U, Q; H/ R: x9 D T7 f5.39.217.773rd A (or either A-J) : K if again balance 3rd I : J (the lighter is different)
; S9 F [7 Z% i+ k4 r) t8 N7 gtvb now,tvbnow,bttvbL is different |