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[]){
	String S;
	Scanner sc = new Scanner(System.in);

	System.err.print("S = ");
	S = sc.next();
	
	if( S.length() == 2){
	    System.out.println(S);
	}

	else if( S.length() == 3){
	    char s1 = S.charAt(0);
	    char s2 = S.charAt(1);
	    char s3 = S.charAt(2);
	    System.out.print(s3);
	    System.out.print(s2);
	    System.out.println(s1);
	}
    }
}
