that's what they came up with so what are your symbols now your symbols are I run off I run off let's say one one I run off two whites and run up three wise one of four wives Sam for black you list out old possible run wings that you might want to care about encoding and then you can look at the probabilities of each of those run lines and then build a Huffman code and then you get the encoding so you're going to be using and you get a very compressed representation of that page that you're trying to send across even then also has