</span> <span class='op'>=</span> <span class='ident'>List</span>::<span class='ident'>Cons</span>(<span class='number'>1</span>, <span class='ident'>Box</span>::<span class='ident'>new</span>(<span class='ident'>List</span>::<span class='ident'>Cons</span>(<span class='number'>2</span>, <span class='ident'>Box</span>::<span class='ident'>new</span>(<span class='ident'>List</span>::<span class='ident'>Nil</span>))));
    <span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>&qu