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 re = s;

        if (s.length() == 3) {
            char[] c = new char[3];
            c[0] = s.charAt(2);
            c[1] = s.charAt(1);
            c[2] = s.charAt(0);
            re = String.valueOf(c);
        }
        
        System.out.println(re);
    }
}