title: Filter a sorted list
body: <p>I have a list in which elements are already sorted.
  I want to filter out elements that are greater than a given number.</p>
  
  <p>For example,</p>
  
  <pre><code>original_list = [2,3,5,7,11]
  limit = 6
  expected_list = [2,3,5] # All elements &lt;=6 
  </code></pre>
  
  <p>What is the most efficient way to achieve this?</p>
  
  <p>All the existing questions I saw, deal with unsorted lists. 
  I believe there will be a more efficient way of filtering if the list is already sorted.</p>