In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['c', 3869, 'X', 9543, 'y', 3435, 'k', 'L', 9191, 'C', 'X', 'U', 'w', 'z', 'y', '6225', 's', '1927', '1777', 'N', '8311', 'B', 'q', 'r', '4829', 'r', '5909', 'e', 'G', 'J', '9631', 'V', 'b', 'G', 'g', 'g', 5369, 7691], ['Z', 'i', 'X', 'U', 'w', 'z', 'y', '6225', 's', '1927', '1777', 'N', '8311', 'B', 'q', 'r', '4829', 'r', '5909', 'e', 'G', 'J', '9631', 'o', 2079, 1461, 633, 3253, 8295, 3637, 'q', 'r', 8737, 'i']