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.Linq;
using static System.Console;

namespace AtCorder
{
  class Program
  {
    static void Main()
    {
      WriteLine(CheckReverse());
    }

    static string CheckReverse()
    {
      string chara = ReadLine();
      string reverseChara = new string(chara.Reverse().ToArray()); 
      chara = chara.Length > 2 ? reverseChara : chara;
      return chara;
    }
  }
}