In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['x', 4565, 6697, 6527, 'C', 913, 6363, 'g', 'H', 5529, 7975, 6261, 'k', 1779, 2665, 'b', 2107, 'O', 1535, 'P', 3761, '8737', 'M', '9565', '3805', '543', 'T', 'y', 'y', '9371', '4013', '3327', 'h', 'v', '8099', '7613', '3379', 'a', '3471', 'I', 'l', 'l', 'Y', 'U', 53, 2053, 2297, 'A', 'p', 'L', 6583, 4213, 4699, 3379, 6191, 'P', 'q'], ['n', 'M', 4919, 3979, 7873, 3857, 431, 'm', 2233, 1813, 3721, '8737', 'M', '9565', '3805', '543', 'T', 'y', 'y', '9371', '4013', '3327', 'h', 'v', '8099', '7613', '3379', 'a', '3471', 'I', 'l', 'l', 'Y', 'R', 'e', 5077, 6275, 'd', 'V', 5545, 3105, 'x', 'v', 'Z', 'K', 4569, 4221, 'T', 'Q']