you can of course ask yourself the question for a given set of symbols that you want to send are there multiple binary trees and in fact there are there are many many trees you could put forward to come up with a podium for these six symbols here is another example here the tree is set up a little family and we see them the same string being compressed twice and on the left it requires 30 bits on the right it requires 29 bits and so the name of the game here is can we find a binary tree set down as I tried to encode my message