In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['D', 73, 4229, 'y', 'L', 'I', 'b', '9379', '4841', '4297', '2109', 'B', 'x', '5821', '3663', 'c', '2675', 'r', 'Q', 'b', '9765', 'C', 7925, 7835, 9613], [9449, 'y', 'k', 8701, 'K', 'Y', 2935, 6499, 9741, 3851, 9791, 'I', 'b', '9379', '4841', '4297', '2109', 'B', 'x', '5821', '3663', 'c', '2675', 'r', 'Q', 'b', '9765', 'V', 8977, 'm']