title: Manipulating a value in a Maybe
body: <p>A function in some code I'm writing returns</p>
  
  <pre><code>Just 3
  </code></pre>
  
  <p>What I'd like is to remove the Just and manipulate 3 as I please.</p>
  
  <p>I must confess to not understanding the Just syntax, but while I work that out, I'd appreciate some help with this.</p>