In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[1821, 'o', 'P', 'D', 'z', 'L', 6705, 9121, 8275, 'Y', 2375, 'H', '4153', 't', '5331', 'D', 'O', 'c', 'C', '6967', 'X', 'Z', 'y', '277', 'i', '6055', '8713', 'u', 'h', 'W', 3399, 2567, 2623, 4019, 10029, 3115, 229, 'f', 5261, 'M', 'h'], [2133, 'B', 'E', 's', 7845, 'S', 'E', 6795, 10007, 'G', 't', 7581, 3485, 3045, 'H', '4153', 't', '5331', 'D', 'O', 'c', 'C', '6967', 'X', 'Z', 'y', '277', 'i', '6055', '8713', 'u', 'h', 'R', 'u', 4315, 'X', 7279, 'w', 4965, 'd', 'G', 8829, 9245, 5429, 'D', 'k', 'T']