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 text = sc.nextLine();
    	if (text.length() == 2) {
    		System.out.println(text);
    	} else {
    		StringBuffer sb = new StringBuffer(text);
    		System.out.println(sb.reverse());
    	}
    	sc.close();
    }
}