#include?
using?namespace?std;
template?class?linklist;
template??
class?Node{
	friend?class?linklist?;
	Telem?date;
	Node??*next;
public:
	Node（Telem?d=0Node??*n=NULL）:date（d）next（n）{};
	Telem?getdate（）{return?date;}
	void?setdate（Telem?&?el）{date=el;}
	Node?*getnext（）{return?next;}
	void?setnext（Node?*p）{next=p;}
};
template?
class?List{
public:
	virtual?void?clear（）=0;
	virtual?int?leng（）=0;
	virtual?Telem?gete（int?i）=0;
	virtual?int?loc（Telem?&?el）=0;
	virtual?bool?inst（int?locTelem?&?el）=0;
	virtual?Telem?dele（int?loc）=0;
	virtual?bool?full（）=0;
	virtual?bool?empt（）=0;
};
template?
class?linklist:public?List
{
private:
	Node??*head;
	int?siz