title: Sorting a list of lists in by the numbers' absolute values
body: <p>In Python, if I have an input in this format:</p>
  
  <p>ex.) </p>
  
  <pre><code>[[1, 2, -3], [2, -64, 41], [-32, 5, 4]]
  </code></pre>
  
  <p>how would I go about sorting each list by the numbers' absolute value?
  the number of lists within the brackets will depend on the user's input.</p>
  
  <p>in this case I'd want the output </p>
  
  <pre><code>[[1,2,-3],[2,41,-64], [4,5,-32]]
  </code></pre>