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: Wrong Answer)

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

#define MAX 10000
int main(){

	int n, a[MAX], b[MAX] , c[MAX],i, j, k, cnt = 0, path = 1;
	scanf("%d", &n);

	for (i = 0; i < n; i++)
		scanf("%d", &a[i]);

	for (i = 0; i < n; i++)
		scanf("%d", &b[i]);

	for (i = 0; i < n; i++)
		scanf("%d", &c[i]);

	for (i = 0; i < n; i++){
		path = 1;
		for (j = 0; j < n; j++){
			if (a[i] > b[j])
				path = 0;
			for (k = 0; k < n&&path ==1; k++){
				if (b[j] < c[k])
					cnt++;
			}
		}
	}

	

	printf("%d", cnt);
	return 0;
}