using System;

using System.Security.Cryptography;

using System.Text;

public class Program

{

    public static void Main()

    {

        string password = "Qwerty18!";

        string b64Password = "";

        if (!string.IsNullOrEmpty(password))

        {

            UTF8Encoding textConverter = new UTF8Encoding();

            byte[] passBytes = textConverter.GetBytes(password);

            b64Password = Convert.ToBase64String(new SHA384Managed().ComputeHash(passBytes));

        }

        Console.WriteLine(b64Password);

    }

}