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.Scanner;

public class Main{

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String n = sc.next();
        if (n.length() == 2) {
            System.out.println(n);
        } else {
                System.out.print(n.substring(2, 3 ));
                System.out.print(n.substring(1, 2 ));
                System.out.print(n.substring(0, 1 ));
                System.out.println("");

        }


    }

}