func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     string cad1;     string cad2;     cin >> cad1 >> cad2;     if (cad1 == cad2) {       cout <<  YES ;     } else {       if (cad1.size() != cad2.size()) {         cout <<  NO ;       } else {         int ceros = 0;         int unos = 0;         for (int i = 0; i < cad2.size(); ++i) {           if (cad2[i] ==  0 ) ceros++;           if (cad1[i] ==  1 ) unos++;         }         if (ceros == cad2.size())           cout <<  NO ;         else {           if (unos > 0)             cout <<  YES ;           else             cout <<  NO ;         }       }     }     return 0;   }   