#include<bits/stdc++.h>
using namespace std;
int main(void)
{
    string a,b;
    cin>>a>>b;
    reverse(a.begin(),a.end());
    if(a==b) puts("YES");
    else puts("NO");
    return 0;
}
### Prompt

In cpp, your task is to solve the following problem:

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(void)
{
    string a,b;
    cin>>a>>b;
    reverse(a.begin(),a.end());
    if(a==b) puts("YES");
    else puts("NO");
    return 0;
}
```