In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[8637, 6085, 'E', 5673, 7821, 'c', 7863, 6241, 4959, 'B', 2167, 'E', 8775, 6079, 6453, 'r', 'y', '8005', 'j', 's', '2637', 'c', '9671', 'W', '7501', '5469', 'I', '7317', '2109', 'O', 'H', 'u', 'E', '9115', 'V', 'g', 6053, 'N', 2379, 8059, 7299, 1089, 9657, 'H', 'A'], [5249, 'M', 3107, 'v', 's', 5265, 'N', 6347, 'Z', 2589, 1809, 's', 'r', 'y', '8005', 'j', 's', '2637', 'c', '9671', 'W', '7501', '5469', 'I', '7317', '2109', 'O', 'H', 'u', 'E', '9115', 'V', 'Z', 'R', 6899, 9557, 'h', 5783, 'l', 6517, 3953, 'Q', 3795, 't', 1789, 'u', 539]