title: Regex digits smaller then 82
body: <p>I'm trying to write a simple regex but I don't know why it is not working.</p>
  
  <p>User enter 2 digits number like <code>01</code>, <code>09</code>, <code>23</code>, <code>55</code>, until <code>82</code>. After <code>82</code> system will refuse.</p>
  
  <p>Here is my regex, 2 digits must be smaller than 82.</p>
  
  <pre><code>0[1-9]|[1-8][0-9]|8[0-2]
  </code></pre>