title: How to separate string and integers to a list
body: <p>I need to separate this string: </p>
  
  <pre><code>s = "I have 10 cars"
  </code></pre>
  
  <p>to a list like this:</p>
  
  <pre><code>['I','h','a','v','e',10,'c','a','r','s']
  </code></pre>
  
  <p>The digits shouldn't be separated. also digit should entered as a Integer( without these ' ') </p>