12 balls names A B C D E F G H I J K L公仔箱論壇& R8 g. y7 ?- `. m* i
1St A B C D : E F G H if balance 5.39.217.76; L1 r' V7 C& x0 O* W/ e
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) ) v3 {1 ?/ s* T2 ^! G3rd A (or either A-J) : K if again balance 3rd I : J (the lighter is different)) z; ?# E9 Q3 h: T! D7 G
L is different