using System;
using System.Collections.Generic;
using System.Linq;

namespace gauss2
{
    internal class Program
    {
        static void Main(string[] args)
        {
            List<int> firstArray = Console.ReadLine().Split()
                .Select(int.Parse)
                .ToList();

            List<int> secondArray = Console.ReadLine().Split()
                .Select(int.Parse)
                .ToList();

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

            for (int i = 0; i < firstArray.Count; i++)
            {
                for (int j = 0; j < secondArray.Count; j++)
                {
                    if (firstArray.Count > secondArray.Count)
                    {
                        result.Add(firstArray[i]);
                        result.Add(secondArray[j]);
                    }
                }
            }
            Console.WriteLine(string.Join(" ", result));
        }
    }
}