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.*;
import java.io.InputStreamReader;
import java.io.BufferedReader;


public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String line = br.readLine();
        if (line.length()==2) System.out.println(line);
        else {
            System.out.print(line.charAt(2));
            System.out.print(line.charAt(1));
            System.out.print(line.charAt(0)+"\n");
        }
        //System.out.println("XXXXXXXX");
    }
}
