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 in = new Scanner(System.in);

        while(in.hasNext()){
            String s = in.nextLine();
            if(s.length() == 2){
                System.out.println(s);
            }else{
                for (int i = s.length() - 1; i >= 0; i--) {
                    System.out.print(s.charAt(i));
                }
                System.out.println();
            }
        }
    }
}
