title: Regex regular expression
body: <p>I'm programming a calculator in C# to begin with that. 
  I will separate a string in two variables= Nb1 and Nb2. I looked on the web for examples and I found something : </p>
  
  <pre><code>var numAlpha = new Regex("(?&lt;Alpha&gt;[a-zA-Z]*)(?&lt;Numeric&gt;[0-9]*)");
  var match = numAlpha.Match("codename123");
  var alpha = match.Groups["Alpha"].Value; // Alpha = codename
  var num = match.Groups["Numeric"].Value; // Numeric = 123
  </code></pre>
  
  <p>I fails to only adapt for the numbers : " 121165468746*1132" or "4586/6953" 
  Nb1 =121165468746 || 4586
  Nb2 =1132 || 6953</p>
  
  <p>Can you help me ? I'm going crazy  :-)</p>