pan class="op">:</span><span class="fl">3</span>,</span></span>
<span class="r-in"><span>  b <span class="op">=</span> <span class="fl">4</span><span class="op">:</span><span class="fl">6</span>,</span></span>
<span class="r-in"><span>  c <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"a"</span>, <span class="st">"a"</span>, <span class="st">"b"</span><span class="op">)</span>,</span></span>
<span