title: Implement the function returnthree()
body: <p>Hi I am trying to Implement the function returnThree() in python that takes a string as a parameter and returns the first three characters of the string. If the string has length less than 3, then an empty string should be returned.</p>
  
  <p>This is what I have so far:</p>
  
  <p>def returnThree(s):</p>
  
  <pre><code>return (s[:3])
  </code></pre>
  
  <p>Thank you for your help.</p>