12 balls names A B C D E F G H I J K L
) ?, s! k! s6 w7 }1St A B C D : E F G H if balance
. S+ a# R# K3 D9 X) {+ k9 o1 d. W$ u5.39.217.762nd 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)
: s! K. ?! H9 Q$ E4 b8 w! {# b3rd A (or either A-J) : K if again balance 3rd I : J (the lighter is different)5.39.217.766 c0 \: {' X" y& h! v9 l N! k, V
L is different |