one go let's say we turn this into a distribution over we have three symbols ABC chosen distribution over there could be a a a there could be a a B there could be a a C and so forth now we have 3 to the 3 is 27 possible combined symbols that we're trying to send not which friend this will work out a lot more nicely and the overhead will become a lot less than if when we try to send just one symbol of time so let's take a look at this in action one way people do this in actually sending faxes well Tom there keep you have used faxes but essentially