Problem:
Score : 100 points

Problem Statement

You are given a grid with 2 rows and 3 columns of squares.
The color of the square at the i-th row and j-th column is represented by the character C_{ij}.

Write a program that prints YES if this grid remains the same when rotated 180 degrees, and prints NO otherwise.

Constraints

C_{i,j}(1 \leq i \leq 2, 1 \leq j \leq 3) is a lowercase English letter.

Input

Input is given from Standard Input in the following format:

C_{11}C_{12}C_{13}
C_{21}C_{22}C_{23}

Output

Print YES if this grid remains the same when rotated 180 degrees; print NO otherwise.

Sample Input 1

pot
top

Sample Output 1

YES

This grid remains the same when rotated 180 degrees.

Sample Input 2

tab
bet

Sample Output 2

NO

This grid does not remain the same when rotated 180 degrees.

Sample Input 3

eye
eel

Sample Output 3

NO

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Wrong Answer)

    import java.util.*;
    public class Main {
     
    	public static void main(String[] args) {
    			
    		Scanner scan=new Scanner(System.in);
    		
    		String upper =scan.next();
    		String lower =scan.next();

    		
    		if (upper.charAt(0)==lower.charAt(2)&&upper.charAt(2)==lower.charAt(0)) {
    			System.out.print("YES");
    		}else {
    			System.out.print("NO");
    		}
    		
    	
  
    				
 
     
    }
    }
// end