title: RegEx Code That Select Lines Not Including A Letter And A Number At Least
body: <p>i need a regular expression code that select all lines not including at least <em>1 letter</em> and <em>1 number</em></p>
  
  <p>ex:</p>
  
  <blockquote>
    <p>aaaaaaaa<br>
    11111111<br>
    @!@!@^%a<br>
    @!@!@^%1</p>
  </blockquote>