In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2131, 'u', 7839, 'N', 5039, 7399, '6475', 'i', 'W', '4251', 'q', 't', '3307', '6385', 'J', '9351', 'i', 'J', 'c', 'Q', '2019', '9317', 'R', '9791', '2841', '1911', 'Q', '5079', 'U', 7327, 1593, 'Z', 7395], [9627, 5443, 'A', 'I', 5381, 5425, 2529, 193, 'w', 'O', 'z', '6475', 'i', 'W', '4251', 'q', 't', '3307', '6385', 'J', '9351', 'i', 'J', 'c', 'Q', '2019', '9317', 'R', '9791', '2841', '1911', 'Q', '5079', 'x', 7333, 2203]