#include<bits/stdc++.h>
using namespace std;
int main() {
    string r, g;
    cin>>r>>g;
    if(r[0]==g[2]&&r[1]==g[1]&&r[2]==g[0]) cout<<"YES";
    else cout<<"NO";
}

### Prompt

Construct a CPP code solution to the problem outlined:

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.

Examples

Input

pot
top


Output

YES


Input

tab
bet


Output

NO


Input

eye
eel


Output

NO

### Response

```cpp
#include<bits/stdc++.h>
using namespace std;
int main() {
    string r, g;
    cin>>r>>g;
    if(r[0]==g[2]&&r[1]==g[1]&&r[2]==g[0]) cout<<"YES";
    else cout<<"NO";
}

```