In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6885, 'O', 8405, 1421, 'l', 'N', 'u', 't', '3977', '1191', 'e', '6425', '8141', 'G', '195', 'V', 'H', 5701], [8333, 6935, 'W', 9183, 'u', 't', '3977', '1191', 'e', '6425', '8141', 'G', '195', 'V', 'O', 'K', 6503, 7223, 'U']