<a href="rotate.html">rotate</a></span><span class="op">(</span><span class="va">d</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> |4, 1, 2, 3|</span>
<span class="r-in"><span><span class="fu"><a href="rotate.html">rotate</a></span><span class="op">(</span><span class="va">d</span>, n <span class="op">=</span> <span class="fl">2</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> |3, 4, 1, 2|</span>
<span c