using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

class Date

{

    protected int year;

    protected int month;

    protected int day;

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

    {

        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 void print ()

{

    Console.WriteLine(toString());

}

public void getDate()

{

    Console.Write("year:");

    int  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 = { "اسفند", "بهمن", "دی", "اذر", "ابان", "مهر", "شهریور", "مرداد", "تیر", "خرداد", "اردیبهشت", "فروردین" };

    private string monthstring()

    {

        return (SMonth[month - 1]);

    }

    public string toStingLong()

    {

        string D = year.ToString() + "   " + monthstring() + "    " + day.ToString;

        return (D);

​

    }

      public void nextDay()

    {

        day++;

        if(month<=6&& day > 31) { day = 1;month++; }

        if(month>6&& day > 30) { day = 1;month++; }

        if ((year % 4) != 3 && month == 12 && day> 29) { day = 1;month++; }

        if (month > 12) { month = 1;day = 1; }

​

    }

    public  void addDay(int n) { for (int i = 0; i < n; i++) { nextDay()} }

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

    {

        this.year = year;

        this.month = month;

        this.day = day;

​

    }

    public void toStringLong()

    {

        string D = year.ToString();

    }

​

}

​

    class Program

    {

        static void Main(string[] args)

        {

        SHDate d1 = new SHDate(1402, 3, 31);

        d1.print();

        d1.addDay(400);

        d1.print();

        Console.ReadKey();

​

        }

    }

​

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