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){
  var inp = input.split('\n');
  var a = inp[0];
  var b = inp[1];

  if(a[0] === b[2] && a[1] === b[1] && a[2] === b[0]){
    console.log('YES');
  } else {
    console.log('NO');
  }
}

/* エラー(WA)になるケースがある
  input = input.replace('\r\n', ''); // 改行コードを削除
  input = input.replace('\n', ''); 　// 改行コードを削除

  var revInput = input.split('').reverse().join('');
  input === revInput ? console.log('YES') : console.log('NO');
*/

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