an>.<span class="ident">y</span> <span class="op">+</span> <span class="ident">other</span>.<span class="ident">y</span>}
    }
}

<span class="kw">impl</span> <span class="ident">Sub</span> <span class="kw">for</span> <span class="ident">Point</span> {
    <span class="kw">type</span> <span class="ident">Output</span> <span class="op">=</span> <span class="ident">Point</span>;

    <span class="kw">fn</span> <span class="ident">sub</span>(<span class="self">self</span>, <span class="ident">other</span>: <s