12904번

12904

#include <iostream>
#include <algorithm>
using namespace std;

string s,t;
int answer = 0;

void getAnswer(string word) {
    while(true) {
        if(word.length()==s.length()) {
            if(word==s) answer = 1;
            break;
        }
        if(word[word.length()-1]=='B') {
            word = word.substr(0,word.length()-1);
            reverse(word.begin(), word.end());
        } else {
            word = word.substr(0,word.length()-1);
        }
    }
}


int main() {
    cin>>s>>t;
    getAnswer(t);
    cout<<answer;
}