<span class="hljs-function">string <span class="hljs-title">a</span><span class="hljs-params">(<span class="hljs-string">&quot;hello&quot;</span>)</span>, <span class="hljs-title">b</span><span class="hljs-params">(<span class="hljs-string">&quot;world&quot;</span>)</span></span>;
<span class="hljs-function">vector&lt;<span class="hljs-type">int</span>&gt; <span class="hljs-title">u</span><span class="hljs-params">(<span class="hljs-number">1</span>)</span>, <span class="hljs-title">v</span><span class="hljs-params">(<span class="hljs-number">2</span>)</span></span>;