class

        /*Complex Conjugate()
        {
            Complex result;
            //Complex result(RealPart,-ImaginaryPart);
            result.ImaginaryPart = -ImaginaryPart;
            return result;*/

#include <iostream>

using namespace std;

class Complex
{
        private:

                double RealPart;
                double ImaginaryPart;

        public:

                Complex(): RealPart(1), ImaginaryPart(1)
                {
                }

                Complex Conjugate ()
                {
                        Complex a;    //!!!
                        a.ImaginaryPart = -ImaginaryPart;
                        return a;
                }

                void Print()
                {
                        cout << "Complex number is: " << RealPart;
                        if (ImaginaryPart != 0)
                        {
                                if (ImaginaryPart > 0) cout << " + " << ImaginaryPart << "i" << endl;
                                else
                                cout << ImaginaryPart << "i" << endl;
                        }
                }

                 int Compare(Complex b)
                 {
                        if (this->RealPart > b.RealPart)
                                return -1;
                        else if (this->RealPart < b.RealPart)
                                return 1;
                        else if (this->ImaginaryPart > b.ImaginaryPart)
                                return -1;
                        else if (this->ImaginaryPart < b.ImaginaryPart)
                                return 1;
                        else return 0;
                 }
                 bool equal (Complex a)
                 {
                    if (this->RealPart == a.RealPart && this->ImaginaryPart == a.ImaginaryPart)
                        return true;
                    else return false;
                 }

                Complex operator + (Complex a)
                {
                        Complex answer;
                        answer.RealPart = RealPart + a.RealPart;
                        answer.ImaginaryPart = ImaginaryPart + a.ImaginaryPart;
                        return answer;
                }

                Complex operator - (Complex a)
                {
                        Complex answer;
                        answer.RealPart = RealPart - a.RealPart;
                        answer.ImaginaryPart = ImaginaryPart - a.ImaginaryPart;
                        return answer;
                }

                Complex operator * (Complex a)
                {
                        Complex answer;
                        answer.RealPart = RealPart * a.RealPart - ImaginaryPart * a.ImaginaryPart;
                        answer.ImaginaryPart = - (RealPart * a.ImaginaryPart + ImaginaryPart * a.RealPart);
                        return answer;
                }


        /*Complex operator + (Complex a)
                {
                        return Complex(RealPart + a.RealPart,ImaginaryPart + a.ImaginaryPart);
                }*/


                Complex operator / (Complex a)
                {
                        Complex answer;
                        answer.RealPart = (RealPart * a.RealPart + ImaginaryPart * a.ImaginaryPart) /
                                (a.RealPart * a.RealPart + a.ImaginaryPart * a.ImaginaryPart);
                        answer.ImaginaryPart = (a.RealPart * ImaginaryPart - a.ImaginaryPart * RealPart) /
                                (a.RealPart * a.RealPart + a.ImaginaryPart * a.ImaginaryPart);
                        return answer;
                }

                void setRealPart (double a)
                {
                        RealPart = a;
                }

                void setImaginaryPart (double a)
                {
                       ImaginaryPart = a;
                }
};

int main ()
{
        Complex z;
        z.Print();
        double a;
        cout << "Enter Real Part: " << endl;
        cin >> a;
        z.setRealPart(a);
        double b;
        cout << "Enter Imaginary Part: " << endl;
        cin >> b;
        z.setImaginaryPart(b);
        z.Print();
        Complex u = z.Conjugate();
        u.Print();
        cout << "Compare the numbers " << z.Compare(u) << endl;
        cout <<"Equal the numbers " << z.equal(u) << endl;
        Complex q;
        double c;
        cout << "Enter Real Part of the second number: " << endl;
        cin >> c;
        q.setRealPart(c);
        double d;
        cout << "Enter Imaginary Part of the second number: " << endl;
        cin >> d;
        q.setImaginaryPart(d);
        q.Print();
        Complex w = z + q;
        w.Print ();
        Complex r = z - q;
        r.Print ();
        Complex h = z * q;
        h.Print ();
        Complex s = z / q;
        s.Print ();
        return 0;
}