In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[8353, 2919, 'B', 4425, 'I', 6017, 9627, '7957', '6895', 'C', 'A', 'a', '1185', '9813', 'q', '899', '7405', 'L', 'W', 8513, 'e', 'd', 4931, 1611, 'I', 'e', 'R', 2391], [8863, 'd', 2569, '7957', '6895', 'C', 'A', 'a', '1185', '9813', 'q', '899', '7405', 'L', 'Z', 6881, 'd', 'j']