Problem:
Score : 100 points

Problem Statement

You are given a string S of length 2 or 3 consisting of lowercase English letters. If the length of the string is 2, print it as is; if the length is 3, print the string after reversing it.

Constraints

The length of S is 2 or 3.

S consists of lowercase English letters.

Input

Input is given from Standard Input in the following format:

S

Output

If the length of S is 2, print S as is; if the length is 3, print S after reversing it.

Sample Input 1

abc

Sample Output 1

cba

As the length of S is 3, we print it after reversing it.

Sample Input 2

ac

Sample Output 2

ac

As the length of S is 2, we print it as is.

Solution in C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
using System.Collections.Generic;

class Program
{
    static void Main(string[] args)
    {
        string str = Console.ReadLine();

        char[] letter = str.ToCharArray();

        if (letter.Length == 2)
        {
            foreach (var c in letter)
            {
                Console.Write(c);
            }
        }

        else
        {
            Array.Reverse(letter);
            foreach (var c in letter)
            {
                Console.Write(c);
            }
        }
        Console.WriteLine();
    }
}