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 <stdlib.h>

int main()
{
    char ch[2][3];
    int i,j;
    for(i = 0 ; i < 2; i++)
    {
        for(j = 0; j < 3; j++)
        {
            scanf("%c",&ch[i][j]);
        }
        getchar();
    }
    for(i = 0 ; i < 2; i++)
    {
        for(j = 0; j < 3; j++)
        {
            if(ch[1-i][2-j]!=ch[i][j])
            {
                printf("NO\nThis grid does not remain the same when rotated 180 degrees.\n");
                return 0;
            }
        }
    }
    printf("YES\nThis grid remains the same when rotated 180 degrees.\n");


}