I also took the time to type in Randall Beer's Lisp from 80 micro. In fact, I'm pretty sure that that was my first time accessing a working Lisp interpreter. (Mostly working, anyway. I think I had a typo that I never managed to track down.) Unfortunately I didn't really know what to do with it. I didn't really learn how to use Lisp until I spent several days trying to write Lisp programs in college, and finally started to understand the functional paradigm. But yeah, that may have been one of the longest magazine programs that I ever typed in.