an><span class="op">(</span><span class="va">n</span> <span class="op">==</span> <span class="fl">3</span><span class="op">)</span></span></span>
<span class="r-in"><span>  <span class="kw"><a href="https://rdrr.io/r/base/switch.html" class="external-link">switch</a></span><span class="op">(</span></span></span>
<span class="r-in"><span>    <span class="va">i</span>,</span></span>
<span class="r-in"><span>    `1` <span class="op">=</span> <span class="fl">1</span><span class="op">:</span><span class="fl">3<