title: How to create an automatic index
body: <p>How can I generate this pattern automatically?</p>
  <pre><code>indice = [&quot;A Minus 2&quot;, &quot;A Plus 2&quot;, &quot;A Minus 3&quot;, &quot;A Plus 3&quot;, &quot;A Minus 4&quot;, &quot;A Plus 4&quot;, &quot;A Minus 5&quot;, &quot;A Plus 5&quot;]
  </code></pre>
  <p>It's fast just to write down this list, but I imagine it can be hard if that pattern goes on.</p>