title: How do I make AND or OR expressions?
body: <p>I wrote this:</p>
  
  <pre><code>if( a == -11 &amp;&amp; b == -1 ){
  {
  
  if( a == -1) AND ( b == -1)...
  </code></pre>
  
  <p>But neither work, and I have the same problem with <code>OR</code>. How do I write expressions that include <code>OR</code> or <code>AND</code>?</p>