#include <iostream>

using namespace std;

int main()
{
	char a, b, c, d, e, f;
	cin >> a >> b >> c >> d >> e >> f;
	cout << (a == f&&b == e&&c == d ? "YES" : "NO") << endl;
	return 0;
}

### 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>

using namespace std;

int main()
{
	char a, b, c, d, e, f;
	cin >> a >> b >> c >> d >> e >> f;
	cout << (a == f&&b == e&&c == d ? "YES" : "NO") << endl;
	return 0;
}

```