include

include

include

include

include

using namespace std;

template class MyTemplate { T element1;

public: MyTemplate(T num) : element1(num) {}

T add(T element2) {
    return element1 + element2;
}

T concatenate(T element2) {
    return element1 + element2;
}

};

int main() { std::ios_base::sync_with_stdio(false); int n ; cin >> n ; for(int i =0 ; i < n ; i++) {

    string select_type ;
    cin >> select_type ;

    if (select_type == "string") {
        string e1 ,e2 ;
        cin >> e1 >> e2 ;
        MyTemplate<string> m1(e1);
        cout << m1.concatenate(e2) << "\n";
    }
    else if ( select_type == "int" ){
        int e1,e2 ;
        cin >> e1 >> e2 ;
        MyTemplate<int> m1(e1);
        cout << m1.add(e2) << "\n";
    }
    else if ( select_type == "float" ) {
        double e1,e2 ;
        cin >> e1 >> e2 ;
        MyTemplate<double> m1(e1);
        cout << m1.add(e2) << "\n";
    }
}

return 0;

}