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.*;
import java.util.*;
import java.util.Scanner;
public class Main {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
Scanner scan=new Scanner(System.in);
//int a=scan.nextInt();

//int b=scan.nextInt();
String b=scan.next();
int rong=b.length();
StringBuffer sb = new StringBuffer(b);
String dst = sb.reverse().toString();
if(rong<=2) {System.out.println(b);}
else {System.out.println(""+dst);}
	}
}
