In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['L', 'B', '719', '7245', '9891', '357', '8413', '7151', 'O', '6243', 'a', '7891', 'L', '2055', 'm', 'k', '6605', '4181', 'n', 'z', 3333, 'F'], ['j', 'p', 'Y', 3799, 2645, 3309, 'M', 5769, '719', '7245', '9891', '357', '8413', '7151', 'O', '6243', 'a', '7891', 'L', '2055', 'm', 'k', '6605', '4181', 'n', 'n', 7027, 'H', 8729, 'v', 1469, 'N', 7285, 'I', 'o', 139, 'L', 'Q']