In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[611, 'I', 8495, 9383, 1643, 8643, 'B', 1281, 5361, '9979', '5929', '6293', '5583', '6357', '9529', '5235', 'A', '5889', '1319', '89', '7111', 'P', 'y', 'G', '6893', '4677', '3567', '3051', 'u', 'g', 'g', 7805, 4231, 1171, 'g', 'T', 3215, 7455, 4121, 7701, 'V', 'q', 179, 4243, 'u', 503], [3215, 'Q', '9979', '5929', '6293', '5583', '6357', '9529', '5235', 'A', '5889', '1319', '89', '7111', 'P', 'y', 'G', '6893', '4677', '3567', '3051', 'u', 'U', 'e', 4091, 1343]