using System;

public class Program

{

    public static void Main()

    {

        var easter = EasterSunday(2019);

        Console.WriteLine(easter.ToShortDateString());

    }

    public static DateTime EasterSunday(int year)

    {

        int day = 0;

        int month = 0;

​

        int g = year % 19;

        int c = year / 100;

        int h = (c - (int)(c / 4) - (int)((8 * c + 13) / 25) + 19 * g + 15) % 30;

        int i = h - (int)(h / 28) * (1 - (int)(h / 28) * (int)(29 / (h + 1)) * (int)((21 - g) / 11));

​

        day   = i - ((year + (int)(year / 4) + i + 2 - c + (int)(c / 4)) % 7) + 28;

        month = 3;

​

        if (day > 31)

        {

            month++;

            day -= 31;

        }

​

        return new DateTime(year, month, day);

    }

}