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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 original = "this is your sensitive digit 12345 , if you have any question please call 123456789";
  9. 		String pattern = @"(?<!\d)(?!123456789(?!\d))\d{4,}";
  10. 		String result =  Regex.Replace(original, pattern, "****");	
  11. 		Console.WriteLine(result);
  12. 	}
  13. }
  14.  
Success #stdin #stdout 0.1s 29452KB
comments (?)
stdin 
Standard input is empty
stdout 
this is your sensitive digit **** , if you have any question please call 123456789
https://ideone.com/flBGI2
language:
C# (NET 6.0)
created:
1 year ago
visibility:
secret

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