In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['v', 9023, 'Y', 'I', 8221, 'P', 19, 'c', '3397', 'u', 'x', '9243', '6109', 'L', 's', 'R', '6235', '1051', 'W', '7475', 'I', '1547', 'f', '1423', '3109', '6113', 'h', 'a', '5037', 'U', 'A', 'n', 'G', 'y', 'o', 6853, 'Q', 601, 3397, 'h', 2709, 2735, 'I', 'l'], [9287, 3721, 'V', 4015, 8289, 785, 'Q', 7965, 6545, 9563, 2755, 'y', 5893, 3069, 3419, 6761, 'z', 9067, 8425, 9179, 3589, 'f', 'p', 'M', '3397', 'u', 'x', '9243', '6109', 'L', 's', 'R', '6235', '1051', 'W', '7475', 'I', '1547', 'f', '1423', '3109', '6113', 'h', 'a', '5037', 'U', 'A', 'n', 'G', 'b', 'F', 'r', 'G', 'E']