on the previous one two slides back sorry when we when we decode we have we can reconstruct the random bits that are used to sample the mole given the symbol and so we get them back out at that time so still get everything on the other side this is not lost will be decoded and bits back all right so the last thing I want to cover and I'm going to hand it off to Jonathan and maybe we'll take a very short break and then hand it off to Jonathan is how do we have to get those bits back I've been telling you you're