X I we're good to go now I'm practice I might not be a natural number so you might have to round it up to the nearest natural number to actually make it a bit sequence so this is essentially n2 between Shannon coding so how about we proposed this we're going to try to encode with this thing over here the first question you should have is that even possible is this a valid set of lengths or would this be lengths that actually will not correspond to a curve well I'm gonna think craft of billing allows us to check for a given set of