using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

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

            list.Sort();

            Console.WriteLine(string.Join(" ", list));

            list.Reverse();

            Console.WriteLine(string.Join(" ", list));

    }

}