In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['A', 2923, 'g', 8927, 3417, 'B', 729, 'b', 'U', 5011, 5489, 'G', 'I', 3529, 'f', 'w', 3587, 'A', 'R', '7929', 'o', 'm', 'Q', 'j', '9521', 'M', '7711', '4815', 'M', 'f', '7671', 'i', '115', '5221', '3073', '2317', '6623', '9721', 'Z', 'D', 'a', 'Y', 'I'], ['B', 153, 7803, 3167, 'h', 'N', 'y', 2487, 2489, 7781, 'q', 8135, 6215, 7997, 9069, 7103, 'I', 1231, 'W', 'T', '7929', 'o', 'm', 'Q', 'j', '9521', 'M', '7711', '4815', 'M', 'f', '7671', 'i', '115', '5221', '3073', '2317', '6623', '9721', 'Z', 'D', 'r', 8525, 'A', 8217, 'G', 7099, 2991, 'g', 'A', 'L', 5009, 5203, 's', 8155, 'K', 6213]