In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9015, 'D', 'x', 2343, 8215, 9739, 's', 'v', 4819, 4169, '837', 'O', '4535', '6571', '5897', 'v', 'T', 'T', 'z', '2017', '2567', '4931', 'K', '8945', 'Y', '6197', '3545', 'n', 'o', 'm', '7619', 'e', '5293', '5649', 's', 'b', 'N', 'Y', 'F', 3825, 8325, 8247, 5693, 1871, 7173, 'o', 493, 4221, 967, 'u'], ['Z', 'b', 'K', 2277, 'o', 8251, 'r', 9357, 'Z', 'C', 'd', 'z', 'c', 'k', 'B', 4271, 2379, '837', 'O', '4535', '6571', '5897', 'v', 'T', 'T', 'z', '2017', '2567', '4931', 'K', '8945', 'Y', '6197', '3545', 'n', 'o', 'm', '7619', 'e', '5293', '5649', 's', 'b', 'U', 4583, 'B', 'q', 5847, 't', 2839, 341, 'h', 'F']