Update HW8.
Update HW8.


Former-commit-id: 950a0c37e7eb57a07fff5be3c8f9af7178c46907 [formerly 94e347b018331e27ada6744f550447bb2d9e2a7f]
Former-commit-id: 2fb09ee7100886e3b1b760dde3be55f82b6cb775
justinbois/bebi103_utils