special num 2

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

namespace specialNumbers
{
    class Program
    {
        static bool isPalindrome(int num)
        {
            //int reversed = 0;
            //int digits = 0;
            //bool polindrome = false;
            //while (n > 0)
            //{
            //    digits = n % 10;
            //    reversed = reversed * 10 + digits;
            //    n = n / 10;
            //}
            //if (reversed == n)
            //{
            //    polindrome = true;
            //}
            //reversed = 0;
            //return polindrome;
            string sNum = num.ToString();
            for (int i = 0; i < sNum.Length; i++)
                if (sNum[i] != sNum[sNum.Length - 1 - i]) return false;

            return true;
        }
        static bool SumOfDigits(int n)
        {
            int sum = 0;
            while (n > 0)
            {
                sum += n % 10;
                n = n / 10;
            }
            if (sum % 7 == 0)
            {
                return true;
            }
            else
            {
                return false;
            }


        }
        static bool ContainsEvenDigit(int num)
        {
            //bool contains = false;
            //int digit = 0;
            //while (true)
            //{
            //    digit = num % 10;
            //    if (digit % 2 == 0)
            //    {
            //        contains = true;
            //        return contains;
            //    }
            //    num = num / 10;
            //}
            string n = num.ToString();
            for (int i = 0; i < n.Length; i++)
            {
                if (n[i] % 2 == 0)
                {
                    return true;
                }

            }
            return false;

        }

        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            for (int i = 1; i <= n; i++)
            {
                if (isPalindrome(i) && SumOfDigits(i) && ContainsEvenDigit(i))
                {
                    Console.WriteLine(i);
                }
            }
        }
    }
}