title: Regex to match from position 13 to end of line
body: <p>Example strings:</p>
  
  <pre><code>DFDBDFDFDF21R123
  DFDBDFDFDF21DFD
  </code></pre>
  
  <p>I need a regex that when run matches ths following:</p>
  
  <pre><code>R123
  DFD
  </code></pre>
  
  <p><strong>(no EOL chars)</strong></p>
  
  <p>Thanks, I hope there is a simple solution that my brain isn't conjuring. </p>