class Entity
{
	size_t x_;
	size_t y_;

public:
	Entity(size_t x,size_t y):x_(x),y_(y)
	{}

	bool isDangerous() const
	{
		return false;
	}
};


class hunter:public Entity
{


public:
	hunter(size_t x, size_t y):Entity(x,y)
	{}

	bool isDangerous() const
	{
		return true;
	}
};