1. 1st divide to half take the heavier out. U# I+ A- L# c! {
2. 2nd take 4 balls out of 5 divide 2 groups to get the heavier out. (if is equal thn the remain is the one u looking for)tvb now,tvbnow,bttvb! L( V, p1 j6 C' L2 A ]
3. Same method if is not equal on 2nd try.