using System;

using System.Collections;

using System.Security.Cryptography ;

public class Program

{

    public static void Main()

    {

        DateTime shiftBegin = new DateTime(2021, 4, 8, 10, 54, 50);

        int salesPersonNumber = 101234;

        int deviceNumber = 108;

        var bytes = new ArrayList();

        bytes.AddRange(BitConverter.GetBytes(shiftBegin.Ticks));

        int testno = Convert.ToInt32(salesPersonNumber % Int32.MaxValue);

        bytes.AddRange(BitConverter.GetBytes(testno));

        testno = Convert.ToInt32(((salesPersonNumber * 1000000) + deviceNumber) % Int32.MaxValue);

        bytes.AddRange(BitConverter.GetBytes(testno));

        bytes.AddRange(BitConverter.GetBytes(0)); // IsDst

        var hashProvider = new MD5CryptoServiceProvider();

        Console.WriteLine(Convert.ToBase64String(hashProvider.ComputeHash((byte[])bytes.ToArray(typeof(byte)))));

        /*foreach (byte v in bytes)

        {

            Console.WriteLine(v);

        }*/

    }

}