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.

Examples

Input

abc


Output

cba


Input

ac


Output

ac
import java.util.*;


import java.io.*;

class Main {

  public static void main(String[] args) throws Exception{
    try (Scanner sc = new Scanner(System.in)){
      String S = sc.next();
      if (S.length() == 2) {
        System.out.println(S);
      } else {
        for (int i = 0; i < S.length(); i++) {
          System.out.print(S.charAt(S.length()-i-1));
        }
      }
    }
  }
}
