In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2471, 'o', 'j', 'J', 7539, 8949, 2023, 'b', 'w', 9935, 'i', 'A', '843', 'E', 'Q', 'M', '3185', 'h', 'u', 'K', 'D', '5655', '2057', '1169', 'Q', 'Y', 2199], [2019, 'Y', 2557, 2337, 'p', 'i', 'A', '843', 'E', 'Q', 'M', '3185', 'h', 'u', 'K', 'D', '5655', '2057', '1169', 'g', 7743, 'L', 'A', 5137, 3587, 'V', 1399]