MagicDates

using System;
namespace _16.MagicDates
{
    class MagicDates
    {
        static void Main()
        {
            Console.Write("Enter Start Year- ");
            int startYear = int.Parse(Console.ReadLine());
            Console.Write("Enter End Year- ");
            int endYear = int.Parse(Console.ReadLine());
            Console.Write("Enter Magic Weight- ");
            int magicWeight = int.Parse(Console.ReadLine());

            DateTime startDate = new DateTime(startYear, 1, 1);
            DateTime endDate = new DateTime(endYear, 12, 31);
            int count = 0;
            for (DateTime d = startDate; d <= endDate; d = d.AddDays(1))
            {
                int d1 = d.Day / 10;
                int d2 = d.Day % 10;
                int d3 = d.Month / 10;
                int d4 = d.Month % 10;
                int d5 = (d.Year / 1000) % 10;
                int d6 = (d.Year / 100) % 10;
                int d7 = (d.Year / 10) % 10;
                int d8 = (d.Year / 1) % 10;
                int[] digits = { d1, d2, d3, d4, d5, d6, d7, d8 };
                int weight = 0;
                for (int first = 0; first < digits.Length; first++)
                {
                    for (int second = first + 1; second < digits.Length; second++)
                    {
                        weight = weight + (digits[first] * digits[second]);
                    }
                }
                //Console.WriteLine("{0:d2}-{1:d2}-{2:d2} weight={3}", d.Day, d.Month, d.Year, weight);
                if (weight == magicWeight)
                {
                    Console.WriteLine("{0:d2}-{1:d2}-{2:d2}", d.Day, d.Month, d.Year);
                    count++;
                }
            }

            if (count == 0)
            {
                Console.WriteLine("No");
            }
        }
    }
}