title: Input not being accepting on first try
body: <p>Not sure why even when the entry is correct I still get the error message before it accepts the correct input.</p>
  <pre><code>even_num=int(input(&quot;Please enter a even number from 1-20: &quot;))
  
  while even_num != &quot;2&quot; and even_num !=&quot;4&quot; and even_num != &quot;6&quot; and even_num != '8' and 
  even_num != '10' and even_num != '12' and even_num != '14' and even_num != '16' and 
  even_num != '18' and even_num !='20':
      
      even_num= input( 'Entry invalid.Please enter a even number: ')
  print('Entry intput: ',even_num,'Entry Accepted')
  </code></pre>