string username;
        string password;

        cout << "Register!n" << endl;
        cout << "Username: ";
        cin >> username;
        cout << "Password: ";
        cin >> password;

        string newAcc = username;
        newAcc.append(".txt");

        ofstream newAccount(newAcc.c_str());
        newAccount << username << ' ' << password << endl;
        newAccount.close();