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 s = sc.next();
        String res = s;
        if(s.length() == 3) {
            byte[] a = s.getBytes();
            byte[] r = new byte[]{a[2],a[1],a[0]};
            res = new String(r);

        }

        System.out.println(res);
    }
}