Problem 5. 5 minutes--nice change.
Beginning problem 6.
Problem 6: First pass at map function. Returns:

[[2, 3], [["a", 0, 25], ["a", 1, 11], ["a", 3, 60], ["a", 4, 89], ["b", 0, 28], ["b", 1, 12], ["b", 2, 3], ["b", 4, 69]]]
Problem 6: Right answer, now need to format.
Problem 6: Right output format, wrong #s.
FINISHED ASSIGNMENT 3. Problem 6: Correct.