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 a = sc.next();
		String[] b = a.split("");
		
		int c=a.length();
		
		if(c==3){
			String str=b[0];
			b[0]=b[2];
			b[2]=str;
		}
		
		for(int i=0;i<c;i++){		
			System.out.print(b[i]);
		} 
	}

}
