In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['K', 2915, 'b', 9055, 'Q', 'i', 'k', 'D', 'R', 'Q', '5715', '9499', '8973', 'I', 'p', '9189', '9711', '2891', 'N', 'g', '597', 'e', 'L'], ['r', 139, 'f', 'X', 'Y', 8153, 'U', 3653, 'G', 't', 9197, 'k', 'D', 'R', 'Q', '5715', '9499', '8973', 'I', 'p', '9189', '9711', '2891', 'N', 'g', '597', 'z', 7151, 'G', 'H', 'I', 8073, 5677, 8805, 'i', 1763, 'F', 4255, 9775]