In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3279, 'r', 5279, 361, 5367, 'E', 'N', 8835, 'f', 'O', 'c', 4759, 'O', 'i', 665, 4411, 8807, 2349, 'm', 7739, 'o', 'O', 'y', '2171', 'd', '9153', 'r', 'w', 'O', '7955', 's', '6475', 'U', 'y', 'Z', '6553', '4105', '6013', '9719', '3623', 'x', '9689', 'K', 'L', '2623', 'W', 'j', 'P', 'l'], ['i', 'a', 9321, 'C', 7785, 4641, 'W', 3783, 3597, 9247, 4829, 2791, 'S', 'f', 925, 2505, 1511, 1667, 479, 'S', '2171', 'd', '9153', 'r', 'w', 'O', '7955', 's', '6475', 'U', 'y', 'Z', '6553', '4105', '6013', '9719', '3623', 'x', '9689', 'K', 'L', '2623', 'W', 'j', 'K', 'L', 8801, 1777, 'X', 1871, 'M', 1877, 1573, 'k', 'h', 'F', 9641, 1839, 'U', 'K', 'w']