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;

int main()
{
    string s,s1;
    cin>>s>>s1;
    if(s==s1)
    cout<<"NO"<<"\n";
    else if(s!=s1){
        reverse(s1.begin(),s1.end());
        if(s==s1)
        cout<<"YES"<<"\n";
        else
        cout<<"NO"<<"\n";
    }
}

   			 			 	 		   						  	 	