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: Accepted)

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

int main()
{
	char c[2][4];
	int i, j, cnt = 1;

	/*for (i = 0; i < 2; i++)
		for (j = 0; j < 3; j++)
			scanf("%c", &c[i][j]);*/
	for (i = 0; i < 2; i++)
		scanf("%s", c[i]);

	for (i = 0; i < 3; i++)
		if (c[0][i] != c[1][2 - i])
			cnt = 0;

	if (cnt)
		printf("YES\n");
	else
	printf("NO\n");

	return 0;
}