In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['M', 'W', 9249, 3385, 'b', 'g', 'B', 2759, 'L', 'e', 'g', 475, 'G', 'f', 2925, 'K', 623, '4401', 'T', 'b', '5389', 'w', '9387', 'E', 'b', 'n', '997', '2977', 'q', 'i', '7655', 'F', '7375', '8877', '1495', 'U', 'F', '5283', '8135', 'T', 'f', '2965', 'x', 2481, 'p', 'o', 947, 1235, 2281], [411, 'T', 4247, 'S', 'a', 'F', 1939, 4895, 2497, 2809, 7073, 7257, 6089, 'V', 6343, 4675, 609, 'Q', 'h', 1607, 8071, '4401', 'T', 'b', '5389', 'w', '9387', 'E', 'b', 'n', '997', '2977', 'q', 'i', '7655', 'F', '7375', '8877', '1495', 'U', 'F', '5283', '8135', 'T', 'f', '2965', 'T', 'b', 6945, 3579, 'v', 'X', 'k', 'I']