is 0.2 if we individually encode this we'll have to maybe send the 0 for a and a 1 for B and is gonna be a lot of overhead because a cost us just as much as B even though it's way more likely really there should be a way to make it cheaper the second most naive thing would be only talked about earlier gives you a head of time decide what is 3 a is going to be three B's two A's and a B and so forth we're gonna do something quite different we're going to do is we're going to say okay we get something to come in a a PA