12 balls names A B C D E F G H I J K L0 j! N- O: y( Y' C
1St A B C D : E F G H if balance
1 c1 ]8 h6 o( l5 z3 z6 N# B @公仔箱論壇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)
; ?9 d, ?1 o, X- ]9 A7 D/ `, T6 n2 ktvb now,tvbnow,bttvb3rd A (or either A-J) : K if again balance 3rd I : J (the lighter is different)
+ k8 s: b. e2 b1 cL is different |