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.*;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
        Scanner sc = new Scanner(System.in);
        
		String s = sc.next();
		String[] sArray = s.split("");
		if( sArray.length == 2 ) {
			System.out.println(s);
		} else if (sArray.length == 3) {
			String s3ans = sArray[2] + sArray[1] + sArray[0];
			System.out.println(s3ans);
		}	
	}
}
