In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9209, 'Q', 'O', 'D', 'y', 6299, 275, 'y', 7207, 1665, 'o', 2643, 'I', 'P', 'w', 'E', 9499, 'H', 2585, '8221', '9641', '6383', '4107', '3955', 'J', 'e', '3877', '2003', 'Y', 'Y', '9471', 'T', 'W', '8705', 'c', 'f', 'l', '3003', 'X', 5391, 8899, 5429, 'e', 'w', 'Z', 3247, 6531, 'c', 3133, 8299, 159, 3321, 'Q'], [803, 5301, 7757, 3965, 'B', 3605, 'a', 2563, 'F', 5699, 'x', 'y', 'K', 'b', 'X', 5253, 'm', 'g', '8221', '9641', '6383', '4107', '3955', 'J', 'e', '3877', '2003', 'Y', 'Y', '9471', 'T', 'W', '8705', 'c', 'f', 'l', '3003', 'N', 'J', 7841, 3159, 'j', 'R', 'z', 1071]