Pr4R7ex7

using System;

namespace test
{
    class Program
    {
        static bool isAnswer (int a, int k)
        {
            int j;
            int count = 0;
            for (int i = a; i > 0; i/=10) {
                j = i % 10;
                if (j % 2 == 0)
                    count += 1;
            }
            if (count == k)
                return true;
            else
                return false;
        }
        static void Main ()
        {
            Console.WriteLine ("Enter a & b ");

            int a = int.Parse (Console.ReadLine ());
            int b = int.Parse (Console.ReadLine ());

            Console.WriteLine ("Enter K ");
            int k = int.Parse (Console.ReadLine ());
            for (int i = a; i <= b; i++) {
                if (isAnswer (i, k) == true)
                    Console.WriteLine ("{0} ", i);
            }
        }
    }
}