using System;

using System.Linq;

​

public class Program

{

    public static int _1 { get {return time.Second;}}

    public static int _2 { get {return time.Minute;}}

    public static int _3 { get {return time.ToString("HH").ToInt();}}

    public static int _4 { get {return time.Day;}}

    public static DateTime time;

​

    public static void Main()

    {

        time = DateTime.Now;

        //time = new DateTime(2019, 11, 2, 5, 3, 3);

​

        var a = _1.ToString("D2");

        var b = _2.ToString("D2");

        var c = time.ToString("HH").ToInt().ToString("D2");

        var d = _4.ToString("D2");

        var res = a + "" + b + "" + c + "" + d;

        var smhd_H = CharHash(res, 5);

        var smhd_D = CharHash(smhd_H, 5, -1, 1);

        Console.WriteLine(res);     

        Console.WriteLine(smhd_H);

        Console.WriteLine(smhd_D);

        Console.WriteLine(smhd_D == res);

​

​

    }

    //

    private static string CharHash(string chars, int incrment, int limit = -1, int algorithDirectiom = 0)

        {

            var res = "";

            if (limit == -1)

                limit = chars.Length;

​

            for (int i = 0; i < limit; i++)

            {

                char c = (char)0;

                if (algorithDirectiom == 0)

                {

                    c = (char)(chars.ElementAt(i) + incrment);

                }

                else if (algorithDirectiom == 1)

                {

                    c = (char)(chars.ElementAt(i) - incrment);

                }

                res += c.ToString();

            }

            return res;

        }

}

​

 public static class  TypeExtentions

 {

     public static int ToInt(this object obj)

     {

         int _ref = 0;

         if (int.TryParse(obj.ToString(), out _ref))

         {

             return int.Parse(obj.ToString());

         }

         else

         {

             return 0;

         }

     }

 }