using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Text;
using System.Text.RegularExpressions;
using System.Linq;
using System.IO;

class Program
{
    static void Main()
    {
        new Magatro().Solve();
    }
}

class Magatro
{
    private string A, B;
    private void Scan()
    {
        var line = Console.ReadLine().Split(' ');
        A = line[0];
        B = line[1];
    }

    public void Solve()
    {
        Scan();
        Console.WriteLine("{0} {1}", B, A);
    }
}