using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        List<int> list = new List<int>();

        list = Console.ReadLine().Split().Select(int.Parse).ToList();

        for(int i = 0; i<list.Count; i++)

        {

            if(list[i]%2 == 0)

            {

                Console.Write(list[i] + " ");

            }

        }

    }

}