using System;

using System.Text;

public class Program

{

    public static void Main()

    {

        using (System.Security.Cryptography.MD5 md5 = 

   System.Security.Cryptography.MD5.Create())

{

    byte[] retVal = md5.ComputeHash(md5.ComputeHash(Encoding.Unicode.GetBytes("s8353s8353")));

    StringBuilder sb = new StringBuilder();

    for (int i = 0; i < retVal.Length; i++)

    {

        sb.Append(retVal[i].ToString("x2"));

    }

​

        Console.WriteLine(sb.ToString());

        }

    }

}