namespace DataEsatta2
{
    class Program
    {
        static bool bisestile(int c)
        {
            if (c % 4 == 0)
            {
                if (c % 100 == 0)
                {
                    if (c % 400 == 0)
                    {
                        return true;
                    }
                    return false;
                }
                return true;
            }
            return false;
        }

        static bool validDate(int a, int b, int c)
        {
            if (c <= 0 || c >= 3000 || b < 1 || b > 12)
            {
                return false;
            }

            int gg = 31;

            if(b == 4 || b == 6 || b == 9 || b == 11)
            {
                gg = 30;
            }
            if (b == 2)
            {
                gg = bisestile(c) ? 29 : 28;
            }

            if (a <= gg && a > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }


            static void Main(string[] args)
        {
            Console.WriteLine(validDate(32, 1, 2018) == false);
            Console.WriteLine(validDate(31, 1, 2018) == true);
            Console.WriteLine(validDate(0, 13, 2018) == false);
            Console.WriteLine(validDate(1, 2, 2020) == true);
            Console.WriteLine(validDate(29, 02, 1900) == false);
            Console.WriteLine(validDate(29, 02, 2000) == true);
            Console.WriteLine(validDate(29, 7, 3100) == false);
            Console.WriteLine(validDate(16, 11, 2001) == true);
            Console.WriteLine(validDate(23, 10, 2700) == true);
            Console.WriteLine(validDate(32, 03, 2800) == false);

            Console.WriteLine("=== Test di Andrea");
            Console.WriteLine(validDate(1, 3, 2017) == true);
            Console.WriteLine(validDate(29, 2, 1700) == false);
            Console.WriteLine(validDate(29, 2, 1701) == false);
            Console.WriteLine(validDate(29, 2, 2000) == true);
            Console.WriteLine(validDate(-8, 13, 1998) == false);
            Console.WriteLine(validDate(31, 3, 2001) == true);
            Console.WriteLine(validDate(29, 2, 2016) == true);
            Console.WriteLine(validDate(32, 5, 2004) == false);
            Console.WriteLine(validDate(29, 2, 1200) == true);
            Console.WriteLine(validDate(21, 7, 2010) == true);
            Console.WriteLine(validDate(0, 2, 1440) == false);

            Console.WriteLine("=== Test di Elia");
            Console.WriteLine(validDate(32, 1, 2018) == false);
            Console.WriteLine(validDate(31, 1, 2018) == true);
            Console.WriteLine(validDate(0, 13, 2018) == false);
            Console.WriteLine(validDate(1, 2, 2020) == true);
            Console.WriteLine(validDate(29, 02, 1900) == false);
            Console.WriteLine(validDate(29, 02, 2000) == true);
            Console.WriteLine(validDate(29, 7, 3100) == false);
            Console.WriteLine(validDate(16, 11, 2001) == true);
            Console.WriteLine(validDate(23, 10, 2700) == true);
            Console.WriteLine(validDate(32, 03, 2800) == false);

            Console.WriteLine("=== Test di Tedi");
            Console.WriteLine(validDate(12, 10, 2019) == true);
            Console.WriteLine(validDate(24, 9, 3001) == false);
            Console.WriteLine(validDate(26, 2, 2011) == true);
            Console.WriteLine(validDate(24, 33, 2020) == false);
            Console.WriteLine(validDate(31, 3, 2001) == true);
            Console.WriteLine(validDate(44, 3, 1999) == false);
            Console.WriteLine(validDate(29, 2, 1999) == false);
            Console.WriteLine(validDate(17, 2, 2017) == true);
            Console.WriteLine(validDate(-5, 2, 2050) == false);

            Console.WriteLine("=== Test di Alban");
            Console.WriteLine(validDate(27, 5, 2017) == true);
            Console.WriteLine(validDate(37, 5, 2017) == false);
            Console.WriteLine(validDate(7, 6, 2999) == true);
            Console.WriteLine(validDate(29, 2, 2017) == false);

            Console.WriteLine("=== Test di Riccardo C.");
            Console.WriteLine(validDate(29, 2, 2016) == true);
            Console.WriteLine(validDate(29, 2, 2017) == false);
            Console.WriteLine(validDate(7, 3, 20) == true);
            Console.WriteLine(validDate(33, 4, 2017) == false);
            Console.WriteLine(validDate(31, 4, 2019) == false);
            Console.WriteLine(validDate(30, 40, 2019) == false);
            Console.WriteLine(validDate(29, 2, 2008) == true);
            Console.WriteLine(validDate(20, 4, -30) == false);


            Console.ReadKey();
        }
    }
}