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){

Main main = new Main();
main.solve();

}

private void solve(){

Scanner sc = new Scanner (System.in);

String s = sc.next();

if (s.length()==2){
System.out.println(s);
} else {
System.out.print(s.charAt(2));
System.out.print(s.charAt(1));
System.out.println(s.charAt(0));
}
}
}