using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter the first number: ");

        int firstnum=Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("Enter the second number: ");

        int secondnum=Convert.ToInt32(Console.ReadLine());

        for(int i=10;i<=20;i++)

        {

            if(i%2==0){

                Console.WriteLine(i.ToString());

        }

    }

}

}