HELP! Reverse loop?

[agilmore5]

Use a loop to pull in the sets of information.
As you pull them off, print only the names, in the format Last, First.

Next, use a loop to print information out about the students, in reverse order (last on list through 1st on list).

This is what i got so far

while (!indata.eof())
	{

		indata >> fname>> lname >> grade;
		cout << lname << ", " << fname << endl;

	}