> Hi. I'm a newbie and I'm learning Scheme.
Then you are definitely posting this to the *wrong* list.
The clisp list is for the discussion of the CLISP Common Lisp
*implementation*, not for Scheme-related questions or general Lisp
newbie questions. If you have specific questions about CLISP, you are
welcome to post them here.
For your particular sorts of questions, comp.lang.scheme would be a much
better place, although they will tend to get you to solve your own
homework problems, rather than simply feeding you answers. You can find
comp.lang.scheme on Google Groups.