In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['Y', 'T', 'L', 7997, 2559, 2009, 'P', 8233, 'm', 3063, 9727, 'C', 'c', 'C', 'X', 'I', '1', 'f', 'V', 'J', 'X', 'H', '9189', '5691', 'e', 'O', 2825, 'J', 5997, 'y', 'q', 'g', 'a'], [5105, 'u', 7475, 'd', 5763, 765, 7053, 435, 1195, 6135, 'F', 6743, 'C', 'c', 'C', 'X', 'I', '1', 'f', 'V', 'J', 'X', 'H', '9189', '5691', 'e', 'r', 'p', 'e', 7975, 717, 'M', 1417, 'v']