\nopagenumbers
\magnification=\magstep2
\parindent=0pt
\parskip=12pt
\def\prgex{\smallskip\aftergroup\smallskip
\vskip 1pt
\tt\obeyspaces %
\def\par{\leavevmode\endgraf} %
\obeylines\parindent=0pt\parskip=0pt}
{\obeyspaces\global\let =\ }

Note:  The old exams that follow this page are based on the first
edition of the textbook, and some of the procedure names are
different from the new edition.  Examples:

{\prgex%
old                new

mapcar             map
map                stream-map
head               stream-car
tail               stream-cdr
empty-stream?      stream-null?
sequence           begin
attach-type        attach-tag
type               type-tag
}

There may be additional minor differences; this isn't an exhaustive
list.  Use the old exams as examples of the kinds of questions we
ask, and the kinds of answers we want, but don't copy code from
these solutions without thinking about it!

\bye
