='number'>1</span>, <span class='number'>3</span>, <span class='number'>5</span>, <span class='number'>7</span>, <span class='number'>11</span>];
<span class='kw'>while</span> <span class='kw'>let</span> <span class='prelude-val'>Some</span>(<span class='ident'>x</span>) <span class='op'>=</span> <span class='ident'>v</span>.<span class='ident'>pop</span>() {
    <span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>&quot;{}&quot;</span>, <span class='ident'>x</span>);
}</pre>
