Problem:
Score : 100 points

Problem Statement

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.

Sample Input 1

pot
top

Sample Output 1

YES

This grid remains the same when rotated 180 degrees.

Sample Input 2

tab
bet

Sample Output 2

NO

This grid does not remain the same when rotated 180 degrees.

Sample Input 3

eye
eel

Sample Output 3

NO

Solution in Rust (1.42.0) (judge verdict: Accepted)

#![allow(unused_imports)]
use std::io::{stdin, stdout, Read, Write};

fn main() {
    let mut buf = [b'\n'; 8];
    let stdin = stdin();
    let mut handle = stdin.lock();
    handle.read(&mut buf).unwrap();
    if (buf[0] == buf[6]) && (buf[1] == buf[5]) && (buf[2] == buf[4]) {
        stdout().write_all(b"YES").unwrap();
    } else {
        stdout().write_all(b"NO").unwrap();
    };
}