using System;

public class Program

{

    public static void Main()

    {

        String s1= Console. ReadLine();

        String s2="INDIA";

        for (int i=0;i<s1.Length;i+=2) 

        {

            if(i!=s1.Length)

            {

                s2=s1[i+1]+s1[i];

            }

            else

            {

                s2=s2+s1[i];

                         Console.ReadLine(); 

                         }

                         }

                         }

                         }