using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

​

namespace ConsoleApplication1

{

    public class Date

    { protected int year;

        protected int month;

        protected int day;

        public Date(int year, int month, int day)

        {

            setDate(year, month, day);

        }

        public Date()

        { setDate(1402, 1, 1); }

        public void setDate(int year, int month, int day)

        { this.year = year; this.month = month; this.day = day; }

        public void setDate(string D)//1402/03/16

        { year = int.Parse(D.Substring(0, 4));

            month = int.Parse(D.Substring(5, 2));

            day = int.Parse(D.Substring(8, 2)); }

        public string toString()

        {

            string D = year.ToString() + "/";

            if (month < 10) D = D + "0" + month.ToString();

            else D = D + day.ToString();

            if (day < 10) D = D + "0" + day.ToString();

            else D = D + day.ToString();

            return (D);

        }

        public void print()

        { Console.WriteLine(toString()); }

        public void getDate()

        {

            Console.Write("year:");

            year = int.Parse(Console.ReadLine());

            Console.Write("month:");

            month = int.Parse(Console.ReadLine());

            Console.Write("Day:");

            day = int.Parse(Console.ReadLine());

        }

    }

    class SHDate : Date

    {

        private string[] SMonth = { "اس", "به", "دی", "اذ", "اب", "مهر", "ش", "م", "ت", "خ", "ار", "ف" };

        private string monthstring()

        { return (SMonth[month - 1]); }

        public SHDate(int year, int month, int day)

        {

            this.year = year;

            this.month = month;

            this.day = day;

        }

    }

    class Program

    {

        static void Main(string[] args)

        {

            Date d2 = new Date(1402, 3, 15);

            SHDate d1 = new SHDate(1402, 3, 15);

            d1.print();

            Console.ReadKey();

        }

    }

​

            }