using System;

​

class TimeString : MyString

{

    private int hour;

    private int minutes;

    private char div = ':';

    public TimeString ()

    {

        this.hour = 0;

        this.minutes = 0;

        _Stroka = hour.ToString() + div + minutes;

    }

    public TimeString (int hour, int mimutes) : base("00:00")

    {

        this.hour = hour;

        this.minutes = minutes;

        _Stroka = hour.ToString() + div + minutes;

    }

    public int _hour

    {

        get

        {

            return hour;

        }

        set

        {

            if(value < 24)

            {

                hour = value;

                _Stroka = hour.ToString() + div + minutes;

            }

        }

    }

    public int _minutes

    {

        get

        {

            return minutes;

        }

        set

        {

            if(value < 60)

            {

                minutes = value;

                _Stroka = hour.ToString() + div + minutes;

            }

        }

    }

​

}

class MyString

{

    private string Stroka;

    public string _Stroka

    {

        get

        {

            return _Stroka;

        }

        set

        {

            if(value != "")

                Stroka = value;

                Dlina = Stroka.Length;

        }

    }

    private int Dlina;

    public int _Dlina

    {

        get

        {

            return Dlina;

        }

    }

    public MyString()

    {

        this.Stroka = "пусто";

        this.Dlina = Stroka.Length;

        return;

    }

    public MyString(string Stroka)

    {

        this.Stroka = Stroka;

        this.Dlina = Stroka.Length;

        return;

    }

    public void Print()

    {

        Console.WriteLine(Stroka);

        return;

    }

    public void Copy(int Count)

    {

        for(int i = 1; i <= Count; i++)

        {

            Print();

            return;

        }

    }

    public void Print(byte x, byte y)

    {

        Console.SetCursorPosition(x,y);

        Console.WriteLine(Stroka);

    }

    public static MyString operator - (MyString Object)

    {

        int k = Object.Dlina;

        string Time = Object.Stroka;

        string str = "";

        for(int i = k - 1; i >= 0; i--)

        {

            str += Time[i].ToString();

        }

        MyString ObjectTime = new MyString(str);

        return ObjectTime;

    }

    public static MyString operator + (MyString Object1, MyString Object2)

    {

        string one = Object1.Stroka;

        string two = Object2.Stroka;

​

        string k = one + two;;

        MyString ObjectTime = new MyString(k);

        return ObjectTime;

    }

}

public class Program

{

    public static void Main()

    {

        /*

        MyString Str1 = new MyString();

        MyString Str2 = new MyString();

        MyString Str3 = new MyString();

        Str1._Stroka = "Шоколад";

        Str1.Print();

        Str2 =- Str1;

        Str2.Print();

        Str3 = Str1 + Str2;

        Str3.Print();

        */

        TimeString Str2 = new TimeString();

        Str2._hour = 5;

        Str2._minutes = 59;

​

        Str2.Print();

        Console.WriteLine(Str2._Dlina);

        Console.ReadLine();

    }

}

​