title: sorting records number and then alphabetically
body: <p>I have a series of around 12000 records with unique identifiers as follows:</p>
  
  <pre><code>1, 1S, 3AS, 1A, 1AS, 2, 2H, 2S, 3, 4, 4H, 2AS, 5, 6A, 101S, 101AS and so on.
  </code></pre>
  
  <p>I want it to be sorted as under:</p>
  
  <pre><code>1, 1A, 1AS, 1S, 2, 2AS, 2H, 2S, 3, 3AS, 4, 4H, 5, 6A, 101AH, 101S and so on.
  </code></pre>
  
  <p>It works as :</p>
  
  <p>first sort it by prefixed number, then sort by first alphabet, then sort by second alphabet.</p>