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.*;
 
public class Main {
  	static Scanner scanner = new Scanner(System.in);
 
	public static void main(String[] args) {
      	String s = scanner.next();
    	System.out.println(s.length() == 2 ? s : String.valueOf(new char[] {s.charAt(2), s.charAt(1), s.charAt(0)}));
    }
}