using System;

using System.Text;

​

public class Program

{

    private static string Base64Decode(string base64EncodedData)

    {

        var base64EncodedBytes = Convert.FromBase64String(base64EncodedData);

        //return ASCIIEncoding.ASCII.GetString(base64EncodedBytes);

        return Encoding.UTF8.GetString(base64EncodedBytes, 0, base64EncodedBytes.Length);

    }

    public static void Main()

    {

        Console.WriteLine(Base64Decode("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"));

​

    }

}