In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['u', 3633, 4593, 'E', 'L', 7343, 'b', 'K', '1445', 'q', 'w', 'i', 'u', '4439', 'T', 'k', '1103', '8781', 'D', 'd', 'r', 'p', '467', '4069', 'a', 'X', 'M', '2237', 'a', '3495', '895', '6257', 'v', 'J', 4983, 'K', 'I', 451, 2089, 'U', 8837, 4513, 'j', 2983, 8765, 'a', 'V', 6513, 'q', 6829, 6217, 8489, 7519, 'A', 9855, 6399, 'x', 7627, 'X'], ['P', 1021, 6899, 3521, 1021, 'q', 4439, 3271, 'S', 5469, 619, 'I', 'o', 657, 5651, 6535, 4737, 269, 3371, 5037, 7331, 'A', 'b', 'K', '1445', 'q', 'w', 'i', 'u', '4439', 'T', 'k', '1103', '8781', 'D', 'd', 'r', 'p', '467', '4069', 'a', 'X', 'M', '2237', 'a', '3495', '895', '6257', 'v', 'M', 5959, 'c', 4023, 861, 4445, 2899, 'Y', 'Z', 6399, 7461, 'v', 'g', 9325, 2909, 5297, 4811, 8825, 'Q', 'c', 5203]