In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[5853, 3927, 3869, 'W', 7223, 'H', 'p', '4923', '4649', '1721', 'g', '2373', '811', 'A', 'Y', '4129', '1113', 'Z', 'e', 'P', 371, 1909, 989], ['r', 'T', 'g', 'E', 9189, 'u', 'C', '4923', '4649', '1721', 'g', '2373', '811', 'A', 'Y', '4129', '1113', 'd', 9483, 4095, 'j', 'n', 5135, 4673, 'o', 'L', 'e']