In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[1217, 4367, 'N', 7247, 2413, 'd', 7635, 4815, 'x', 'k', 6881, 'Q', 'n', 3863, 'M', 667, 'b', 3611, 683, 'a', 'O', 7275, 's', 'q', 8289, '1929', 'V', 'g', '4513', '3557', '6357', '5151', 'M', 'U', '9217', 'w', 'm', 'L', '6153', 'K', 'z', 'g', '2647', '4231', 'p', 's', 'u', '9637', 'x', '8815', '3917', 'w', 'x', 'J', 'y', 'a', 'Z', 6773, 6815, 'Q', 'c', 8649], ['q', 8385, 4809, 'Q', 6895, 'N', 3069, 'P', 'r', 'n', 'O', 'R', 319, 7167, 9179, 'n', 1517, '1929', 'V', 'g', '4513', '3557', '6357', '5151', 'M', 'U', '9217', 'w', 'm', 'L', '6153', 'K', 'z', 'g', '2647', '4231', 'p', 's', 'u', '9637', 'x', '8815', '3917', 'w', 'f', 1893, 5287, 'B', 3261, 5093, 'i', 'c', 'J', 37, 3633, 2053, 'w', 'm', 'u', 'T', 'y']