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.*;
import java.util.stream.*;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    try {
      char[] s = sc.next().toCharArray();
      if (s.length == 2) {
        System.out.println(s);
      } else {
        for (int i = 0; i < 3; i++) {
          System.out.print(s[2-i]);
        }
      }
    } finally {
      sc.close();
    }
  }
}
