#pragma once
class IntDoubleLink {
private:
	IntDoubleLink();
	IntDoubleLink(int, IntDoubleLink*, IntDoubleLink*);

public:
	virtual ~IntDoubleLink();

public:
	virtual IntDoubleLink *getPrev();
	virtual IntDoubleLink *getNext();

private:
	int value = 0;
	IntDoubleLink* next = nullptr;
	IntDoubleLink* prev = nullptr;

private:
	friend class IntDoubleLinkedList;
};