In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['u', 'U', 'a', 'Z', 'b', 'Q', 'D', 5239, 6595, 1793, 'f', '7733', '5727', '3047', '4951', '8907', 'D', '5105', 'i', '1837', 'i', 'Y', 'b', '5769', 'p', '1767', 'Y', 'B', 'q', '4075', '917', 'c', 'm', 867, 585, 1765], [5201, 'W', 'a', 'k', 9031, 4815, '7733', '5727', '3047', '4951', '8907', 'D', '5105', 'i', '1837', 'i', 'Y', 'b', '5769', 'p', '1767', 'Y', 'B', 'q', '4075', '917', 'c', 'X', 2991, 3377, 2933, 5359, 6073, 8921, 789, 'W', 7037, 9953, 'N', 8007, 1755, 1959, 9619]