title

#include <iostream>

int main()
{
	Complex c1(1,2),c2(2),c3(c1),c4(1,3),c5(4,1);
	c1=c1+c2+c3;
	std::cout<<c1<<std::endl;
	c2=c3;
	std::cout<<c2<<std::endl;
	c3=c2-c1;
	std::cout<<c3<<std::endl;
	c4+=(c4-c1);
	std::cout<<c4<<std::endl;
	c5=c4+(c3+4);
	std::cout<<c5<<std::endl;
	return 0;
}