In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9043, 'i', 'Y', 'R', '8983', '3625', '6603', '3465', '2183', 'y', '9051', '3155', 'Y', 'X', 6449, 'J', 7879, 799, 'x', 'P', 'M', 8701, 'e'], [9531, 'e', 'o', 'Y', 'i', 'w', 'X', 'Z', 'R', '8983', '3625', '6603', '3465', '2183', 'y', '9051', '3155', 'Y', 'F', 't', 6993, 5007, 8469, 5259]