HP 15c CE programming question regarding cryptic codes

[Jase]

Hi,
I'm trying to learn coding on an HP 15c CE.
When I enter programming mode, and do keystrokes, I get lines like this:
001-42,21,11

I know that the first part is the line number, but is there a translation table where i could figure out what the other numbers represent?

Thanks for any help - my googling did not turn up any results (but I don't really know how to ask the question properly)

Jase.