In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['p', 'x', 'v', 4853, 'y', 'B', 7485, '7551', '9013', 'Q', 'j', '9797', 'T', '7281', '4377', '8701', '55', 'K', 'F', 'E', 'o', '7757', '3393', '5537', 'C', 'T', 'v', 'h', 'x', 'p', 5483, 'p', 'l', 8993, 6193, 'r', 'b', 1589, 4015, 'T', 'Y', 1629, 'H', 'u', 8521, 6161, 'T', 'i'], [1879, 'n', 121, 6899, 8799, 9137, 10011, 'e', '7551', '9013', 'Q', 'j', '9797', 'T', '7281', '4377', '8701', '55', 'K', 'F', 'E', 'o', '7757', '3393', '5537', 'C', 'T', 'v', 'h', 'Q', 'Z', 'U', 4365, 'Q']