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;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class Main{
	public static void main(String[] args) {
		//BufferedReader br= new BufferedReader(new InputStreamReader(System.in));
		Scanner sc = new Scanner(System.in);
		String str=sc.nextLine();
		if(str.length()==2)
			System.out.println(str);
		else
		{
			for(int i=str.length()-1;i>=0;i--)
				System.out.print(str.charAt(i));
			System.out.println();
		}
	}
}