In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6609, 4405, 5879, '4753', 'c', '4297', 'c', 'k', 'h', 7827, 2647], [5631, 'e', 'p', 'o', '4753', 'c', '4297', 'c', 'q', 1413, 'A']