The translation from the Berland language into the Birland language is not an easy task. Those languages are very similar: a berlandish word differs from a birlandish word with the same meaning a little: it is spelled (and pronounced) reversely. For example, a Berlandish word code corresponds to a Birlandish word edoc. However, it's easy to make a mistake during the «translation». Vasya translated word *s* from Berlandish into Birlandish as *t*. Help him: find out if he translated the word correctly.
The first line contains word *s*, the second line contains word *t*. The words consist of lowercase Latin letters. The input data do not consist unnecessary spaces. The words are not empty and their lengths do not exceed 100 symbols.
#include<bits/stdc++.h>

using namespace std;

constexpr char ln = '\n';
constexpr int mod = 1e9 + 7;
constexpr long long MxN = 1e18;

int n, m, k;

void run_test_case(){
	string s, t;
	cin >> s;
	cin >> t;
	
	if(s.size() != t.size()){
		cout << "NO" << ln;
		return;
	}

	int right = s.size() - 1, left = 0;
	bool ok = true;
	while(left <= right){
		if(s[right] != t[left]){
			ok = false;
			break;
		}
		left++;
		right--;
	}
	cout << (ok ? "YES" : "NO");
}	

int main(){
	int test = 1;
	// cin >> test;
	while(test--){
		run_test_case();
	}
}
