ah yeah re-read -> strange definition of scoring 100% though: getting them all wrong.

Thanks though

not sure the test are right for python eg

test.assert_equals(possibly_perfect(['A', 'B', 'A', '_'], ['B', 'A', 'C', 'C']), True)

seems like the student answered question B, but the answer was A, so the student will not be able to have a perfect score