title: Regex for non-alphabets and non-numerals
body: <p>Please provide a solution to write a regular expression as following in C#.NET:
  I would require a RegEx for Non-Alphabets(a to z;A to Z) and Non-Numerals(0 to 9).
  Mean to say as reverse way for getting regular expression other than alphabets and otherthan numerals(0 to 9).</p>
  
  <p>Kindly suggest the solution for the same.</p>