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();
        char[] list = S.toCharArray();
      
       if(list.length == 2){
         System.out.println(S);
       }else{
         for(int i = list.length-1; i >= 0; i-- ){
           System.out.print(list[i]);
         }
          System.out.println();
       }
	}

}