Firstly, it's Megaton, you illiterate half-wit. Secondly, unless you either have a memory span of two seconds or were somehow unable to comprehend the VERY clear instructions given to you by Mr. Burke, there is no way you could possibly not know this, especially since you can check the bloody quest page to find out. This is why you should try to work things through on your own BEFORE deciding it's necessary to make an idiot of yourself and become completely dependent on the assistance of others for even the most easily-solved problems.