Creating LinkedList by Text File

[versus network]

hey guys as you read on title i have to make linked list.Now i have txt file which named sayi.txt this file includes numbers and all numbers is can be change any time i want.In this task there is the point program will read the file and all numbers will have own node on linked list.And this linked list must be circle and doubly.

example sayi.txt file:
159 12 1 9632 74 32 610 12 799 850
(and if sayi.txt like that this means we have 10 node)

my problem is i can make I/O stuff but i cant make doubly circle linked list help me guys.
Here is my code until now:

class Node
{
public:Node() {
		pNext = NULL;
		pPrev = NULL;
		p->Data = Data;
	}


	~Node() {
	
	}


private:
	Node * pNext;
	Node * pPrev;
	Node * p;
	int Data;

};




int main()
{
	Node *n1=new Node();
	string read;
	

	ifstream fileRead("Sayi.txt", ios::in);

	while (!fileRead.eof())
	{
		
		std::getline(fileRead, read);
		fileRead >> read;
	}
	fileRead.close();
		cout << read;
	

	
	system("pause");
    return 0;
}

and i need to know first and last of node.For my example 159 is first 850 is last node.
Spaces are not include any node.
So how can i create linked list on this code?

[tpb]

Your spacing is insane.
A you haven't really done enough.
Show your attempt.