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>
int main()
{
    int i,j,flag=0;
    char a[5][5],b[5][5];
    for(i=1;i<=2;i++)
    for(j=1;j<=3;j++)
    scanf("%c",&a[i][j]);
    for(i=1;i<=2;i++)
    {
        for(j=1;j<=3;j++)
        {
            b[i][j]=a[3-i][4-j];
        }
    }
          for(i=1;i<=2;i++) 
          {
              for(j=1;j<=3;j++)
              {
              if(a[i][j]-b[i][j]==0)
              flag=1;
              else
              flag=0;
              }
              
          }
          if(flag)
          printf("YES");
          else
          printf("NO");
return 0;
}