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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 s = "string";
  9. 		string res = Regex.Replace(s, "(.)(?=.)", "$1 ");
  10. 		Console.WriteLine("==={0}===", res);
  11. 	}
  12. }
Success #stdin #stdout 0.04s 134848KB
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===s t r i n g===
https://ideone.com/ukJCUE
language:
C# (gmcs 5.20.1)
created:
8 years ago
visibility:
public

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