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){
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		int n = s.length();
		if(n==2) {
			System.out.println(s);
		}else if(n==3) {
			StringBuffer str = new StringBuffer(s);
	         String hoge2 = str.reverse().toString();
			System.out.println(hoge2);
		}
		  }
		}