In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['q', 5841, 'u', 8267, 'g', 's', '7223', 'O', '2025', 'z', 'N', 'y', 'K', 'o', 'M', 'k', '5861', '985', 'o', 'b', 'k', '7863', 'V', 'V', 'T', 'z', 'S', '7025', '2851', 'e', 'A', '2995', 'O', '5849', 'j', 'p', 'q', 271, 'H', 'Y', 5247, 7505, 'Q', 9351], ['L', 7803, 1989, 'j', 2841, 5993, 5843, 6617, 'a', 643, 'k', 3541, 6923, 'G', 6027, 'k', 5367, 3569, 'n', 'p', 4597, 'n', '7223', 'O', '2025', 'z', 'N', 'y', 'K', 'o', 'M', 'k', '5861', '985', 'o', 'b', 'k', '7863', 'V', 'V', 'T', 'z', 'S', '7025', '2851', 'e', 'A', '2995', 'O', '5849', 'j', 'P', 'P', 9273, 'P', 8881, 4421, 6119, 'E', 3683, 2345, 7477, 'W', 'n', 2557, 'g', 'O', 'h', 5527, 'a', 4457, 6467, 'u']