   }
}

<span class='kw'>fn</span> <span class='ident'>main</span>() {
    <span class='kw'>let</span> <span class='ident'>s</span> <span class='op'>=</span> <span class='ident'>Square</span> {
        <span class='ident'>x</span>: <span class='number'>0.0f64</span>,
        <span class='ident'>y</span>: <span class='number'>0.0f64</span>,
        <span class='ident'>side</span>: <span class='number'>12.0f64</span>,
    };

    <span class='macro'>println</span><span class='macro'>!</span>(<span class='stri