In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['h', 4533, 'A', 1331, 'n', 2389, 'W', 'L', 4719, 'P', 'R', 'A', 2235, 'u', 181, 8647, 'a', 2699, '2629', '7511', 'c', 'w', 'c', 'z', 'w', '7121', 'Y', 'H', '7747', '5891', 'y', '4295', '3285', '8405', '5695', '6725', '3475', 'Z', '1715', '8085', '7539', 'k', '8123', 't', '9945', '1971', '8935', '297', 'R', 3995], ['S', 'B', 'Z', 'T', 3443, 5111, 'Z', 7639, 'G', 'y', 439, 5153, 'z', 5581, 'Z', 4289, 5395, 2093, 'r', 'y', 6653, 'K', 'h', 2711, '2629', '7511', 'c', 'w', 'c', 'z', 'w', '7121', 'Y', 'H', '7747', '5891', 'y', '4295', '3285', '8405', '5695', '6725', '3475', 'Z', '1715', '8085', '7539', 'k', '8123', 't', '9945', '1971', '8935', '297', 'l', 3083, 'I', 'Q', 7751, 'x', 8413, 'I', 'G', 9589, 'c', 3753, 'y', 'h']