class="nb">cons</span> <span class="nb">cons</span> <span class="no">nil</span> <span class="nb">cons</span> <span class="nb">cons</span> <span class="nb">cons</span> <span class="no">nil</span> <span class="nb">cons</span> <span class="nb">cons</span> <span class="nb">cons</span> <span class="kt">bignum</span>
  <span class="nb">cons</span> <span class="nb">cons</span> <span class="nb">cons</span> <span class="nc">ratio</span> <span class="nb">cons</span> <span class="nb">cons</span> <span class="nb">cons<