In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['f', 'B', 8529, 'J', 3631, 'T', 3161, 99, 5757, 4445, 'T', 'u', 'L', 6143, '6341', 'P', '2243', '313', '5851', 'Z', '4929', 'F', 'M', '7917', 'W', 'C', '1215', '8667', 'J', 'v', '8071', '1873', 'F', 'y', '4643', '5811', 'n', 'l', '2117', '2097', 'm', '8391', 'y', 2075, 'j'], ['D', 3657, 6693, 'R', 8557, 9877, 6179, 2261, 9813, 'W', 7393, 7807, 3191, 1991, 'N', 1125, 3287, 5891, 'R', 'O', 'P', 6455, 7699, '6341', 'P', '2243', '313', '5851', 'Z', '4929', 'F', 'M', '7917', 'W', 'C', '1215', '8667', 'J', 'v', '8071', '1873', 'F', 'y', '4643', '5811', 'n', 'l', '2117', '2097', 'm', '8391', 'v', 'T', 9593, 9285, 4617, 'B', 4647, 'u', 'u']