In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['k', 6611, 'P', '4135', '6317', 'o', 'Y', 'F', 'W', 'A', 'M', 'g', 8981, 8995], [4383, 'Z', '4135', '6317', 'o', 'Y', 'F', 'W', 'A', 'o', 'e', 'z', 'P', 'N', 4091]