In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['Q', 5011, 'j', '6477', '5463', '4875', 'e', 'D', 'M', 'v', '6075', '2391', 't', '1997', '7231', '2273', '1975', 'k', '6319', '9157', '3583', 'D', '8233', '9811', 'F', '5793', 'n', 'z', 'Q', 5611, 2405, 9429, 'K', 'f', 's', 7669], ['B', 8759, 'q', 5851, 4985, 'v', 'D', '6477', '5463', '4875', 'e', 'D', 'M', 'v', '6075', '2391', 't', '1997', '7231', '2273', '1975', 'k', '6319', '9157', '3583', 'D', '8233', '9811', 'F', '5793', 'n', 'z', 'F', 4785, 5921, 'N', 'Y', 8007, 'b', 'p']