int main()
{
	ListHead list = ListHead();
	ListHead list2 = ListHead();

	cout << "list: "; list.printList(); cout << endl;
	cout << "list2: "; list.printList(); cout << endl;

	if (list == list2)
	{
		cout << "listy sa identyczne" << endl;
	}
	list += "3"; list += "4";
	list2 += "4"; list2 += "3";

	cout << "list: "; list.printList(); cout << endl;
	cout << "list2: "; list.printList(); cout << endl;

	list += Element("5");
	if (list != list2)
	{
		cout << "listy sa rozne" << endl;
	}

	list -= "5";
	list -= "3";
	list -= "4";
	list2 -= "4";
	list2 -= Element("5");
	list2 -= Element("3");

	cout << "list: "; list.printList(); cout << endl;
	cout << "list2: "; list.printList(); cout << endl;

	list += "1"; list += "2"; list += "3";
	list2 += "4"; list2 += "5";

	cout << "list: "; list.printList(); cout << endl;
	cout << "list2: "; list.printList(); cout << endl;
	system("pause");
	return 0;
}