using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Numerics;

namespace TestingSoftUni
{
    class Program
    {
        static void Main(string[] args)
        {

            int[] array = Console.ReadLine().Split().Select(int.Parse).ToArray();

            int magicNumber = int.Parse(Console.ReadLine());

            for (int i = 0; i < array.Length; i++)
            {
                for (int j = i; j < array.Length; j++)
                {
                    if(i != j && array[i] + array[j] == magicNumber)
                    {
                        Console.WriteLine($"{array[i]} {array[j]}");
                    }
                }

            }
        }
    }
}