In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['b', 'p', 957, 3331, 3329, 3131, 913, 'T', 'W', 4639, 'K', 5641, 4389, 825, 6575, 3307, '6601', '5569', '27', 'D', 'o', '19', '5247', '4341', 'h', '3535', 'a', '4713', 'p', '8073', 'l', 'f', 'v', 'h', '3299', '959', 'H', 'h', 'w', 'M', 'W', 'c', 'P', 'A', 2609, 'y'], ['W', 'g', 'd', 'l', 'M', 'L', 413, 4787, 1593, 6595, 2211, 7479, 's', 7399, 2803, 9213, 4707, 1741, 8287, '6601', '5569', '27', 'D', 'o', '19', '5247', '4341', 'h', '3535', 'a', '4713', 'p', '8073', 'l', 'f', 'v', 'h', '3299', '959', 'H', 'w', 6921]