In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['k', 'u', 1413, 'j', 'j', '8929', '2383', 'A', 'F', 'f', 8289], ['B', 5157, 1397, 2111, 'l', 'j', 'j', '8929', '2383', 'A', 'x', 3845, 'w']