title: Sort list of strings alphabetically
body: <p>So i have a question, how can i sort this list:</p>
  
  <p><code>['Pera','mela','arancia','UVA']</code></p>
  
  <p>to be like this:</p>
  
  <p><code>['arancia','mela','Pera','UVA']</code></p>
  
  <p>In the exercise it said to use the <code>sorted()</code> function with the cmp argument.</p>