全红（玄关）

#include <iostream>
#include <string>
using namespace std;
string __ejz, __sjz;
int ejz[100], sjz[100];
int main(){
    cin >> __ejz >> __sjz;
    for(int i = 0, j = __ejz.length(); i < __ejz.length(); i++, j--)
        ejz[j] = __ejz[i] - '0';
    for(int i = 0, j = __sjz.length(); i < __sjz.length(); i++, j--)
        sjz[j] = __sjz[i] - '0';
    for(int i = 1; i <= __ejz.length(); i++){
        ejz[i] ^= 1;
        int tmp = 0, j = 1, _n[100] = {0};
        for(int k = 1; k <= __ejz.length(); k++){
            tmp += j * ejz[k];
            j *= 2;
        }
        j = 0;
        int tmp2 = tmp;
        while(tmp2){
            _n[++j] = tmp2 % 3;
            tmp2 /= 3;
        }
        j = 0;
        for(int k = 1; k <= __sjz.length(); k++){
            if(sjz[k] == _n[k]) j++;
        }
        if(j == 1){
            cout << tmp;
            break;
        }
        ejz[i] ^= 1;
    }
    return 0;
}