code class="sourceCode python"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="bu">print</span>(AAs)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
<div class="cell-output cell-output-stdout">
<pre><code>{'U', 'R', 'S', 'M', 'P', 'I', 'E', 'H', 'L', 'N', 'C', 'G', 'D', 'W', 'K', 'F', 'T', 'V', 'A', 'Q', 'Y'}</code></pre>
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</section>
<section id="mass-dict" class="level2">
<h2 class="anchored" da