title: Avoid a certain range of numbers using a regex
body: <p>I would like to avoid the numbers in the range 64512 to 65534 with a regular expression. I have this regex:</p>
  
  <blockquote>
    <p>(6451[2-9]|645[2-9][0-9]|64[6-9][0-9]{2}|65[0-4][0-9]{2}|655[0-2][0-9]|6553[0-4])</p>
  </blockquote>
  
  <p>But it matches the numbers in the range 64512 to 65534 and not the opposite.</p>