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 {
    public static void main(String [] args) {
        Scanner sc = new Scanner(System.in);
        String S = sc.next();
        sc.close();
        int length = S.length();
        if(length == 3) {
            char [] array = S.toCharArray();
            for (int i = 2; i >=0; i --) {
                 System.out.print(array[i]);
            }
        } else {
                System.out.println(S);
        }
    }
}