#include <cstdio>

char s[2][4];

int main(){
	scanf("%s %s", s[0], s[1]);
	if(s[0][0] == s[1][2] && s[0][1] == s[1][1] && s[0][2] == s[1][0])
		printf("YES\n");
	else printf("NO\n");
}
### Prompt

Your challenge is to write 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 <cstdio>

char s[2][4];

int main(){
	scanf("%s %s", s[0], s[1]);
	if(s[0][0] == s[1][2] && s[0][1] == s[1][1] && s[0][2] == s[1][0])
		printf("YES\n");
	else printf("NO\n");
}
```