#include<iostream>
#include<string>
int main(){
  std::string X,Y;
  std::cin >> X >> Y;
  if(X[0] == Y[2] && X[1] == Y[1] && X[2] == Y[0]) std::cout<<"YES";
  else std::cout<<"NO";
}
### Prompt

Develop a solution in cpp to the problem described below:

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<iostream>
#include<string>
int main(){
  std::string X,Y;
  std::cin >> X >> Y;
  if(X[0] == Y[2] && X[1] == Y[1] && X[2] == Y[0]) std::cout<<"YES";
  else std::cout<<"NO";
}
```