12 balls names A B C D E F G H I J K L
; q" ~. a+ ]0 m& D0 u' B+ W3 M1St A B C D : E F G H if balance
6 F! \2 w: x, n% M1 R* b! }& u5.39.217.77:88982nd 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)5.39.217.77:8898( w. _$ `9 H( u8 `% S
3rd A (or either A-J) : K if again balance 3rd I : J (the lighter is different)tvb now,tvbnow,bttvb' |5 t* D: P' e6 n
L is different |