C# String Normalize()

public string Normalize()
public string Normalize(NormalizationForm)

using System; 
using System.Text;
 public class StringExample  
      {  
        public static void Main(string[] args)  
        {  
           string s1 = "Hello C#";
           string s2 = s1.Normalize();
           Console.WriteLine(s2);
        } 
    }  

Hello C#