In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['T', 'a', 'S', 'W', 4451, 'I', 'w', 'q', 'J', 'M', '4343', '3575', 'H', '203', '7769', 'C', 'O', '8119', 'e', 'X', 'C', 'n', '7563', 'O', 6243, 6479, 'i', 5905, 'f', 3665, 7261, 'K', 3037], ['Z', 'c', 'G', 5689, 'O', 'r', 'J', '4343', '3575', 'H', '203', '7769', 'C', 'O', '8119', 'e', 'X', 'C', 'n', '7563', 'L', 'f', 9861, 'Z', 9723, 7811]