using System;

using System.Text;

public class Program

{

    public static void Main()

    {

        string input = "Résumé";

​

        Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);

        byte[] bytes = Encoding.GetEncoding("Windows-1252").GetBytes(input);

        string corrected = Encoding.UTF8.GetString(bytes);

        corrected = corrected.Replace("�", "\u00A0");

​

        Console.WriteLine(input);

        Console.WriteLine(corrected);

    }

}