In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3153, 1065, 'B', 'v', 6853, 9159, 4581, 3839, 'F', 8209, 9471, 161, 'c', 6977, 8361, 'P', 8889, 'e', 'O', '5439', '7877', '2211', '4619', '4069', '2957', '6415', '347', 'y', 'z', 'l', '5801', '4383', 'C', '321', '4719', 's', 317, 1085, 5655], [6973, 'L', 'Y', 4923, 4009, 'd', 5445, 'R', 'e', 'O', '5439', '7877', '2211', '4619', '4069', '2957', '6415', '347', 'y', 'z', 'l', '5801', '4383', 'C', '321', '4719', 'z', 'i', 'M', 4481, 9467, 'z', 6607, 9755, 7561, 4509, 9943, 2447, 969, 3481, 'J', 'B', 201]