Master_Number

using System;
using System.Linq;


namespace Master_Number
{
    class Program
    {
        static void Main(string[] args)
        {
            int num = int.Parse(Console.ReadLine());
            for (int counter = 7; counter<=num; counter++)
            {
                if (IsPalindrome(counter) && IsSumOfDigitsDivisibleBy7(counter) && ContainsEvenDigit(counter))
                {
                    Console.WriteLine(counter);
                }
            }

        }
        static bool IsPalindrome(int num)
        {
            string numString = num.ToString();
            string numStringReversed = new string(numString.Reverse().ToArray());

            return numString == numStringReversed;
        }

        static bool IsSumOfDigitsDivisibleBy7(int num)
        {
            int sum = 0;
            while (num > 0)
            {
                sum += num % 10;
                num /= 10;
            }

            return sum % 7 == 0;
        }

        static bool ContainsEvenDigit(long num)
        {
            bool containsEvenDigit = false;
            while (num > 0)
            {
                if ((num % 10) % 2 == 0)
                {
                    containsEvenDigit = true;
                    break;
                }
                else
                {
                    containsEvenDigit = false;
                }
                num /= 10;
            }
            return containsEvenDigit;
        }
    }
}