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 {

    long INF = Long.MAX_VALUE;

    public static void main(String[] args) {
        new Main().solve();
    }

    void solve() {
        Scanner sc = new Scanner(System.in);
        String S=sc.next();
        if(S.length()==2){
        System.out.println(S);
        return;
        }
        char[] s =S.toCharArray();
        
       for(int i=2;i>=0;i--){
       System.out.print(s[i]);
       }
System.out.println();
    }
}
