#include <iostream>

class complexNum
{

private:

    double w, i;

public:

    complexNum ();
    complexNum (double, double);

    void add      (complexNum o)
    {
        w += o.getWholePart();
        i += o.getImagiPart();
    }
    void subtract (complexNum o)
    {
        w -= o.getWholePart();
        i -= o.getImagiPart();
    }
    void multiply (complexNum o)
    {
        w = w*o.getWholePart() - i*o.getImagiPart();
        i = w*i + i*o.getWholePart();
    }

    double getWholePart ()
    {
        return w;
    }
    double getImagiPart ()
    {
        return i;
    }
    void print()
    {
        std :: cout << "(" << w << " + " << i<<"i)";
    }


};

complexNum::complexNum ()
{
    w = 16;
    i = 12;
}

complexNum::complexNum (double wPart, double iPart)
{
    w = wPart;
    i = iPart;
}

int main()
{
    double x1, y1, x2, y2;
    std::cout << "Enter an x1 and y1 value in the form \"x1 y1\"\n";
    std::cin >> x1 >> y1;
    std::cout << "Enter an x2 and y2 value in the form \"x2 y2\"\n";
    std::cin >> x2 >> y2;

    complexNum a = complexNum(x1, y1), b = complexNum(x2, y2);
    a.print();


    system("PAUSE");
    return 0;
}