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.lang.Math;

class Main {
	public static void main(String[] args) {
		Scanner stdIn = new Scanner(System.in);
		String n = stdIn.next();
		if (n.length() == 2) 
			System.out.print(n);
		else {
			char[] a = new char[3];
			for (int j = 0; j < 3; j++)
				a[j] = n.charAt(j);
			for (int i = 2; i >= 0; i--)
				System.out.print(a[i]);
		}
	}
}