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;

namespace Tenka1_Biginner_A
{
	internal class Program
	{
		public static void Main(string[] args)
		{
			string s = Console.ReadLine();

			if (s.Length == 2)
			{
				Console.WriteLine(s);
			}
			else
			{
				string s1 = s.Substring(0, 1);
				string s2 = s.Substring(1, 1);
				string s3 = s.Substring(2, 1);
				
				Console.WriteLine(s3 + s2 + s1);
			}
		}
	}
}