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.io.PrintWriter;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        try (
                Scanner in = new Scanner(System.in);
                PrintWriter out = new PrintWriter(System.out))
        {
            String text = in.next();

            if (text.length() == 2) {
                out.println(text);
            } else if (text.length() == 3) {
                out.println(new StringBuilder(text).reverse());
            }
        }
    }
}
