In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6363, 'b', 'n', 9459, 7279, 'M', 3373, 8139, 'G', 9843, 'r', 'I', 'i', '6977', '4243', 'W', 'l', 'C', 'B', 'B', '7403', '5007', '2795', 'i', 2225, 'y', 'Z', 'k', 7465], [2883, 'u', 1561, 'u', 8935, 6103, 'g', 3973, 'V', 'J', 7781, 553, 'r', 'I', 'i', '6977', '4243', 'W', 'l', 'C', 'B', 'B', '7403', '5007', '2795', 'Y', 'K', 'w', 3495, 2499]