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 s = new Scanner(System.in);
    String str = s.next();
    char[] c = str.toCharArray();
    if(c.length == 3){
      char temp = c[0];
      c[0] = c[2];
      c[2] = temp;
    }
    System.out.println(c);
  }
}