In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['U', 4681, 'N', 151, '3141', '8631', '3481', 'v', 'o', 'e', 1169, 7545, 'T', 7529], ['e', 1817, '3141', '8631', '3481', 'v', 'o', 'b', 3321]