11.8 Hint<p/>

Suppose you want to start with <b>(a b c)</b>, and just put <b>a</b> on
at the end, to get <b>(b c a)</b>.  Students try the following
three methods:<p/>

> <b>(cons (cdr '(a b c)) (car '(a b c)))</b><br/>
((B C) . A)<p/>

> <b>(list (cdr '(a b c)) (car '(a b c)))</b><br/>
((B C) A)<p/>

> <b>(append (cdr '(a b c)) (car '(a b c)))</b><br/>
(B C . A)<p/>

Each is close, but not quite.