using System;
using System.Linq;

public class Hello
{
    static void Main()
    {
    	string input = Console.ReadLine();
    	inversion(input);
    }
    static void　inversion(string s)
    {
		string cash = "";
		string num = "";
		
		foreach ( char c in s)
		{
			if(char.IsNumber(c))
			{
				num += c;
			}
			else
			{
				cash += c;
			}
		}
		
		s = new string(cash.Reverse().ToArray());
		s += num;
		
		Console.WriteLine(s);
    }
}