title: Split string to List<string> with Linq
body: <p>I'd like avoid loop</p>
  
  <p>I have this : </p>
  
  <pre><code>string s = "AAAA,12,BBBB,34,CCCCC,56";
  </code></pre>
  
  <p>With Linq, I'd like to have 2 List</p>
  
  <p>In the first : AAAA, BBBB and CCCCC</p>
  
  <p>In the second  : 12,34 and 56</p>
  
  <p>It's not based on numeric or not numeric.</p>
  
  <p>Thanks,</p>