Sorry about the delay, Rodric says and unties his Burger King tie. Difficult question you asked, took my best effort, he continues. You see in order to answer your question I took a job at our local burger King. Sneaking around there for a week did not give any clues. I had to get higher up in the system. I worked very hard and finally I got promoted to manager and let in on their nasty secrets.
Actually it is not numers, but a code. 1 is A, 2 is B and so on. So get your own box and translate the code. Be carefull though. If you get "ABACAABE" you are in really big trouble