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 scanner = new Scanner(System.in);

    String s = scanner.next();
    if (s.length() > 2) {
      for (int i = 0; i < s.length(); i++) {
        System.out.print(s.charAt(s.length() - i - 1));
      }
      System.out.println();
    } else {
      System.out.println(s);
    }
  }
}
