In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['a', 447, 'M', 'n', 7231, 'G', 7133, 4363, '8745', '3011', 'n', 'g', 'T', '579', 'r', '7049', 'N', 'z', 'p', '1765', 'O', 1039, 'L', 6681, 6713, 'D', 'z', 'T', 'I', 'y'], ['P', 'C', 'L', 'd', 'Q', '8745', '3011', 'n', 'g', 'T', '579', 'r', '7049', 'N', 'z', 'p', '1765', 'l', 6983, 2775, 's', 5921, 9689]