In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['w', 'K', 9651, 'j', 't', '9649', '4041', 'B', '6577', 'S', 'r', 'R', 2285, 'U'], [6569, 't', 'X', 'D', '9649', '4041', 'B', '6577', 'S', 'r', 'V', 4775, 'o']