#include<iostream>
int main(){
	char s[4],t[4];
  	std::cin >> s >> t;
  	if(s[2]==t[0] && s[0]==t[2] && s[1]==t[1])std::cout << "YES";
 	else std::cout << "NO";
}

### Prompt

Generate a CPP solution to 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<iostream>
int main(){
	char s[4],t[4];
  	std::cin >> s >> t;
  	if(s[2]==t[0] && s[0]==t[2] && s[1]==t[1])std::cout << "YES";
 	else std::cout << "NO";
}

```