> <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">"C"</span>, <span class="st">"A"</span><span class="op">)</span><span class="op">)</span><span class="op">)</span>
<span class="co">#&gt; # A tibble: 6 x 4</span>
<span class="co">#&gt;   ID        A     B     C</span>
<span class="co">#&gt;   &lt;chr&gt; &lt;dbl&gt; &lt;dbl&gt; &lt;dbl&gt;</span>
<span class="co">#&gt; 1 A1      5      10     1</span>
<span class="co">#&gt;