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 C (GCC 5.4.1) (judge verdict: Runtime Error)

#include<stdio.h>
#include<stdlib.h>
#include<string.h>

int main(int argc,char** argv)
{
	char c[3][2];
	for(int i = 0; i < 2; i++){
		for(int j = 0; j < 3; j++){
			scanf("%c", c[i][j]);
		}
	}

	if(c[0][0] = c[1][2]){
		if(c[0][1] = c[1][1]){
			if(c[0][2] = c[1][0]){
				printf("YES\n");
			}
			else{printf("NO\n");}
		}
		else{printf("NO\n");}
	}
	else{printf("NO\n");}

	return(0);

}