using System;

public class Program

{

    public static void Main()

    {

      for (int i = 1000; i < 10000; i++) {

            int digitOne = i % 10;

            int digitTwo = (i / 10) % 10;

            int digitThree = (i / 100) % 10;

            int digitFour = (i / 1000);

​

            int digitSum = digitOne + digitTwo + digitThree + digitFour;

​

            if (digitSum >= 10 && digitSum <= 99 && digitSum % 2 == 0) {

                Console.WriteLine(i);

​

    }

           }

    }   

}

​

​

​