In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7525, 'J', 9065, 683, 'B', 'N', 9527, 6237, 'R', 7089, 6493, 'B', 'M', 'x', 'O', 'e', 'u', '3665', '2207', 'p', 'Z', '395', 'W', '1483', 'u', 'r', '8273', '3923', 'S', 9427, 843, 7997, 'k', 9799, 'R'], [5057, 9217, 9855, 8275, 'R', 1557, 'v', 7263, 'g', 695, 'q', 'n', 4377, 'M', 'x', 'O', 'e', 'u', '3665', '2207', 'p', 'Z', '395', 'W', '1483', 'u', 'r', '8273', '3923', 'I', 'u', 439, 4781, 7757, 3761, 8931, 4351, 'b', 2057, 205, 1855, 'b', 'g']