In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3359, 'v', 3297, 'h', 1925, 9249, 'c', 425, 'S', 5267, 8619, 's', 1377, 'F', 'm', 'M', '1733', 'a', '9771', '1477', 'C', 'S', 'O', '4041', '9751', '717', 'T', '2021', 's', 'c', '4757', '1331', 'L', 1145, 7121, 4701, 2239, 'V', 639, 's', 'Y', 1935, 6231, 9461, 'i', 3959, 'E', 1823], [8557, 'A', 1125, 1329, 5389, 'x', 'K', 'n', 8027, 'M', '1733', 'a', '9771', '1477', 'C', 'S', 'O', '4041', '9751', '717', 'T', '2021', 's', 'c', '4757', '1331', 'B', 5039, 'v', 287, 'n', 'k', 507, 'R', 7557, 'a', 551, 'G', 'V', 2745, 'S', 6581]