#ifndef STRUCT06_H_
#define STRUCT06_H_

#include <iostream>
#include <string>
#include <typeinfo>
#include <cassert>
using namespace std;

ostream& operator<<(ostream& os, const complex& cp)
{
    os << cp.real << " " << cp.imaginary;
    return os;
}

istream& operator>>(istream& is, complex& cp)
{
    is >> cp.real >> cp.imaginary;
    return is;
}
inline void instruction(){
    complex cp1, cp2;
    cin >> cp1 >> cp2;
    cout << cp1 + cp2 << endl;
    cout << cp1 - cp2 << endl;
    cout << cp1 * cp2 << endl;
    cout << cp1 / cp2 << endl;
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int N;
    cin >> N;
    while(N--){
        instruction();
    }
}


#endif // STRUCT06_H_