An algorithm, drawn by a 53-year-old female nurse in Switzerland.

Okay, thanks. Also about the algorithm, I asked you how it works. What did you draw there? Can you explain it to me? I drew a big zero because I have never really heard of that word. Is totally unknown to me, maybe I know it under another term, but "algorithm" I have... I have to pass. So, you don't know much about it? I do not know at all what “algorithm” means, so I could not really draw anything about it.