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  1. using System;
  2. using System.Text.RegularExpressions;
  3.  
  4. public class Test
  5. {
  6. public static void Main()
  7. {
  8. string myString = "xy1234xy";
  9. if(Regex.IsMatch(myString, "^[A-Za-z]{2}[0-9]{4}[A-Za-z]{2}$"))
  10. {
  11. Console.WriteLine("True");
  12. }
  13. }
  14. }
Success #stdin #stdout 0.06s 33992KB
stdin
Standard input is empty
stdout
True