In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['j', 2801, 'T', '6693', 'p', 'm', 'N', 6643], [8669, 6601, 3783, 'R', 'T', '6693', 'p', 'm', 'v', 'Y', 'h']