n> <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">"EUR_1"</span>, <span class="st">"EUR_2"</span>, <span class="st">"EUR_3"</span>, <span class="st">"EUR_4"</span>, <span class="st">"EUR_5"</span><span class="op">)</span>,</span></span>
<span class="r-in"><span>                   nea <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