title: if-statement with nested multiple conditions
body: <p>I'm trying to put multiple conditions in my if statement in Python like below:</p>
  
  <pre><code>if (h9 == h1 or h9 == h2 or h9 == h3 or h9 == h4 or h9 == h5 or h9 == h6 or h9 == h7 or h9 == h8) and (h10 == h1 or h10 == h2 or h10 == h3 or h10 == h4 or h10 == h5 or h10 == h6 or h10 == h7 or h10 == h8) :
       do sth.
  </code></pre>
  
  <p>Basically it's OR condition for both <code>h9</code> and <code>h10</code> at the same time.<br>
  However, this doesn't work, and gives errors like:</p>
  
  <blockquote>
    <p><code>IndentationError: unindent does not match any outer indentation level</code></p>
  </blockquote>
  
  <p>What's the problem?</p>