#include <iostream>
#include <string>

using std::string;
class complex{
	public:
		void complex();
		void complex(double, double, string);
		complex add(complex, complex);
		complex subtract(complex, complex);
		complex multiply(complex, complex);
		void output();
		double getReal(){return real;}
		double getImaginary(){return imaginary;}
		void setReal(double r){real = r;}
		void setImaginary(double im){imaginary = im;}
	private:
		double imaginary;
		double real;
		string i;


};

void complex::complex(){
	imaginary = 1;
	real = 2;
	i = "(SQRT(-1))";
}

void complex::complex(double a, double b){
	real = a;
	imaginary = b;

	i = "(SQRT(-1))";
}

void complex::setComplexumber(double a, double b){
	real = a;
	imaginary = b;
}

complex complex::add(complex lhs, complex rhs){
	lhs.setReal(lhs.getReal()+rhs.getReal());
	lhs.setImaginary(lhs.getImaginary()+rhs.getImaginary());
	return complex(lhs.getReal(), lhs.getImaginary());
}

complex complex::subtract(complex lhs, complex rhs){
	lhs.setReal(lhs.getReal()-rhs.getReal());
	lhs.setImaginary(lhs.getImaginary()-rhs.getImaginary());
	return complex(lhs.getReal(), lhs.getImaginary());

}

complex complex::multiply(complex lhs, complex rhs){
	lhs.setReal(lhs.getReal()*rhs.getReal());
	lhs.setImaginary(lhs.getImaginary()*rhs.getImaginary());
	return complex(lhs.getReal(), lhs.getImaginary());

}

void complex::output(){
	std::cout << std::stod(real) << " + " << std::stod(imaginary)<<" * " << i << "\n";

}