In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4167, 8385, 5885, 6803, 'C', 'z', '2049', '9389', 'z', 'W', 'n', '7369', '2403', 'M', '853', '5263', '3193', 'Y', '6849', 'm', 5155, 'h', 5809, 4479, 67, 'w', 'V', 'a', 'O', 'r', 'e'], ['H', 'G', 'Y', 2727, 'Q', 'z', '2049', '9389', 'z', 'W', 'n', '7369', '2403', 'M', '853', '5263', '3193', 'Y', '6849', 'x', 6281]