In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2095, 4189, 3851, 8479, 'L', 3797, 'B', 'k', 'i', 'e', 'o', '4383', '3861', '6441', '2477', '9535', 'S', '9063', 'w', '5725', '6101', '1753', '3199', 'U', 'n', 5177, 'M', 5593], ['l', 'e', 'k', 4363, 3241, 6099, 5081, 3617, 7859, 'k', 'i', 'e', 'o', '4383', '3861', '6441', '2477', '9535', 'S', '9063', 'w', '5725', '6101', '1753', '3199', 't', 'N', 6009, 5793, 'T']