In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[1219, 6091, 2107, 4827, 4827, 'e', 8605, '99', 'F', '8449', '2505', '805', 'O', 'O', 'W', 'O', '9497', '8641', 'T', 'B', '9821', '4533', '7273', 'e', '8249', '6019', 'd', 'd', 'z', 'l', '7159', 'T', 'i', 9727, 'W', 9599, 'q', 9555, 'j', 7595, 5097, 4681, 't', 'V', 8191, 'e', 'x'], [9559, 'U', 'i', 'z', 'J', 'J', 'k', 'o', 'y', 8663, '99', 'F', '8449', '2505', '805', 'O', 'O', 'W', 'O', '9497', '8641', 'T', 'B', '9821', '4533', '7273', 'e', '8249', '6019', 'd', 'd', 'z', 'l', '7159', 'U', 'x', 'u', 7873, 9953, 6001, 3761, 9573, 'F', 'b', 2123, 'M', 2011, 6473, 'b', 'E', 'o', 1217, 1967, 9411, 419, 953]