In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[1819, 'H', 'Q', 'l', 'X', 5375, 'F', 6131, 9775, 2983, '9329', '5813', '419', 'o', '9095', 'h', '867', '5649', '957', 't', '4021', 'k', 'b', 'q', 5981], [2403, 5579, 'Q', 't', 2329, 'E', 'E', 'E', 'u', 9579, '9329', '5813', '419', 'o', '9095', 'h', '867', '5649', '957', 't', '4021', 'Q', 'N', 3029, 7043, 'u']