In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[8223, 7853, 6723, 8227, 4269, 2225, 6859, 9169, 'U', 4163, 'a', 'B', 4095, 7039, 1305, 't', 'H', 4739, 9427, 6649, 'g', 9789, 'h', 'a', 'l', 2983, '2029', '9629', '4289', '409', 'x', 'P', 'c', 't', 'W', '8359', 'I', 'q', '5413', '8003', 'S', '2323', '3625', 'S', 'V', 'v', 'N', 'b', 'p', '8675', '1241', '3289', '2433', '1193', 'd', '1745', 'i', 7259, 'b', 'w', 'a', 't', 403, 'W', 3257, 'p', 1939, 'w', 4889, 'k', 8109, 3243, 9659, 'h', 'z', 6019, 'G', 'w', 'i'], [6503, 6813, 'B', 3757, 9097, 4645, 't', 'Q', 6419, 'n', 'K', 'N', 'T', 9527, 1061, 2873, 'v', 5959, 'G', '2029', '9629', '4289', '409', 'x', 'P', 'c', 't', 'W', '8359', 'I', 'q', '5413', '8003', 'S', '2323', '3625', 'S', 'V', 'v', 'N', 'b', 'p', '8675', '1241', '3289', '2433', '1193', 'd', '1745', 'v', 'C', 3521, 'f', 5017, 'U', 5361, 'v', 4479, 865, 6947, 't', 'r', 6735, 'a', 1687, 'n', 'a', 6839, 4331, 'O', 'C', 2109]