In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2699, 'e', 'L', 9815, 1775, 3779, 5867, 'c', '869', '4971', 'A', '8755', 'A', '7003', '6033', '5991', '445', '7739', 'a', 'H', '477', 'E', 'W', 2943, 'V', 'H', 'Z', 'C', 8479, 'N', 2895], ['k', 'Q', 'l', 3919, 'd', 783, 'N', 9631, 'E', 'O', '869', '4971', 'A', '8755', 'A', '7003', '6033', '5991', '445', '7739', 'a', 'H', '477', 'A', 'p', 'u', 4457]