In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3021, 161, 4983, 'g', 'd', 7253, 3269, 7287, 'f', 'U', 'D', 'o', 'o', 7403, 5711, 1595, 7667, 'Q', '1135', 'r', '3945', '8433', 'K', '3039', 'C', 'N', '4313', 'V', 'c', '9681', 'm', 'p', '6547', '9687', '5929', 'M', '1683', 'H', '8079', 'a', 'e', 'F', '755', 'w', 'D'], ['m', 9929, 'P', 8735, 'B', 'k', 9051, 3307, 4499, 'L', 'f', 'o', 'Q', '1135', 'r', '3945', '8433', 'K', '3039', 'C', 'N', '4313', 'V', 'c', '9681', 'm', 'p', '6547', '9687', '5929', 'M', '1683', 'H', '8079', 'a', 'e', 'F', '755', 'F', 8853, 'y', 'r', 553, 4461, 957, 'j', 621, 'W', 5709, 6651, 'y', 'W', 1871, 1281, 'b', 'h']