In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['Q', 9545, 6811, 435, 'B', 6347, 8987, 'B', 'z', 497, 5593, 6275, 'b', 5053, 'q', 'p', 1775, 4021, 4833, 'X', 's', 7907, 'W', '7203', 'N', 'f', '1289', 'K', 'k', 'W', 't', 'W', '7235', 'U', 'I', '4439', 'X', 'o', 'E', 'O', 'X', '1477', 'I', 'O', '1623', 'X', '8415', 'H', 'c', 'N', 'B', 'v', 'n', 'I', 3269], [6117, 'N', 8017, 's', 5361, 'c', 'W', '7203', 'N', 'f', '1289', 'K', 'k', 'W', 't', 'W', '7235', 'U', 'I', '4439', 'X', 'o', 'E', 'O', 'X', '1477', 'I', 'O', '1623', 'X', '8415', 'H', 'c', 'N', 'o', 'E', 'A']