n> <span class="fl">2</span>, <span class="fl">3</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="rev.html">rev</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> |3, b = 2, a = 1|</span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/base/print.html" class="external-link">print</a></span><span class="op">(</span><span class="va">d</spa