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.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

  public static void main(String[] args) {

    try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {
      String str = br.readLine();
      if (str.length() == 2) {
        System.out.print(str);
      } else if (str.length() == 3) {
        System.out.print(new StringBuilder(str).reverse());
      }
    } catch (IOException e) {
      e.printStackTrace();
      System.exit(1);
    }
  }
}
