using System;
using System.IO;
using System.Text;
 
namespace 콘솔테스트
{
    class Program
    {
        static void Main(string[] args)
        {
            StreamReader sr = new StreamReader(Console.OpenStandardInput());
            StringBuilder sb = new StringBuilder();
 
            string[] index = sr.ReadLine().Split(' ');
            int n = int.Parse(index[0]);
            int m = int.Parse(index[1]);
 
            int[] a = Array.ConvertAll(sr.ReadLine().Split(new char[] { ' ' }, StringSplitOptions.None), s => int.Parse(s));
            int[] b = Array.ConvertAll(sr.ReadLine().Split(new char[] { ' ' }, StringSplitOptions.None), s => int.Parse(s));
 
            int a_index = 0;
            int b_index = 0;
 
            while (a_index < n && b_index < m)
            {
                if (a[a_index] < b[b_index])
                {
                    sb.Append(a[a_index++] + " ");
                }
                else
                {
                    sb.Append(b[b_index++] + " ");
                }
            }
 
            while (a_index < n)
            {
                sb.Append(a[a_index++] + " ");
            }
 
            while (b_index < m)
            {
                sb.Append(b[b_index++] + " ");
            }
 
            Console.Write(sb.ToString());
 
            sr.Close();
            Console.ReadLine();
        }
    }
}

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