In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['a', 2759, 4157, 3931, 'D', '6633', '769', 'B', '6167', 'E', 't', 'U', 'v', 'D', 8801, 'h'], ['K', 837, '6633', '769', 'B', '6167', 'E', 't', 'U', 'a', 'B', 4055, 'Q']