The Bottles

Drink and Code is over :-( and there is a huge pile of empty bottles left after the contest, they are all of different sizes. One of the organisers Jai is a smart guy. To clean up all the empty bottles he takes the help of a little trick. He picks a small bottle and puts it inside of a bigger bottle. **Obviously, he cannot put a bottle (say, of size 6) inside bigger bottle (say, of size 8) if the