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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. 		// your code goes here
  9. 		string s = "12345 ABC6789";
  10. 		s = Regex.Replace(s, @"(?<=.{3}).*(?=.{3})", "");
  11. 		Console.WriteLine(s);
  12. 	}
  13. }
Success #stdin #stdout 0.04s 134592KB
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123789
https://ideone.com/oUO4FK
language:
C# (gmcs 5.20.1)
created:
5 years ago
visibility:
public

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