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 JavaScript (node.js v5.12) (judge verdict: Accepted)

function Main(input) {
  const array = input.split('\n').map(e => e.split(''));
  if (array[0][0] === array[1][2] && array[0][1] === array[1][1] && array[0][2] === array[1][0]) {
    console.log('YES');
  } else {
    console.log('NO')
  }
}

Main(require("fs").readFileSync("/dev/stdin", "utf8"));