In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[1021, 8431, 5281, 4621, 'w', 1131, 555, 4485, 'H', '9895', '4303', '5637', '5019', 'D', '9627', 'A', 'C', 'V', 'q', 939, 'j', 'l', 'L', 7445], [5753, 'I', 'B', 5539, 'B', 'H', '9895', '4303', '5637', '5019', 'D', '9627', 'A', 'C', 'A', 'C', 2377, 'z', 'd', 9591, 9561, 'z']