Special_Numbers

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _06.Special_Numbers
{
    class Special_Numbers
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            for (int num = 1; num <= n; num++)
            {
                int sumOfdigit = 0;
                int digit = num;
                while (digit > 0)
                {
                    sumOfdigit += digit % 10;
                    digit /= 10;
                }

                bool isSpecial = (sumOfdigit == 5 && (sumOfdigit % 5 == 0)) ||
                    (sumOfdigit == 7 && (sumOfdigit % 7 == 0)) || (sumOfdigit == 11 && (sumOfdigit % 11 == 0));
                Console.WriteLine("{0} -> {1}", num, isSpecial);
            }
        }
    }
}