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 C++14 (GCC 5.4.1) (judge verdict: Wrong Answer)

#include <bits/stdc++.h>
using namespace std;


int main()
{
  string s;
  string a;
  bool oh=0;
  cin>>s>>a;
  sort(s.begin(),s.end());
  sort(a.begin(),a.end());
  if(s.size()!=a.size()){
        cout<<"NO"<<endl;
        return 0;
  }

  for(int i=0;i<s.size();i++)
  {
      if(s[i]!=a[i]) oh=1;
  }
  if(oh==1) cout<<"NO"<<endl;
  else cout<<"YES"<<endl;
  return 0;
}