In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['h', 'H', 't', 'r', '4083', '5575', 'M', '8729', '3899', 'Z', 'z', 'm', 'O', 'n', 'l', 's', 1253, 9921, 2923, 103, 583], [1669, 8683, 9711, 't', 'r', '4083', '5575', 'M', '8729', '3899', 'Z', 'z', 'm', 'O', 'e', 'E']