title: How add 0 in front of every single digit of a string?
body: <p>Given a string such as </p>
  
  <pre><code>September 3  September 3  September 2  September 1 September 10 August 14
  </code></pre>
  
  <p>I want to have an output of </p>
  
  <pre><code>September 03  September 03  September 02  September 01 September 10 August 14
  </code></pre>
  
  <p>Tried some regular expressions with no luck :/</p>