In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9763, 'r', 'R', '1171', 'u', 'B', '6713', '4855', 'c', 'F', 'O', '127', 'i', 't', 'b', '2359', '7201', '6967', '4999', '2991', '4711', 'b', '2843', '3305', 'Z', '2379', 'C', '2181', 'O', 'g', '5599', 'M', 573, 'V', 'R', 5703, 'W', 'e', 3775, 3737], ['b', 4273, 'R', '1171', 'u', 'B', '6713', '4855', 'c', 'F', 'O', '127', 'i', 't', 'b', '2359', '7201', '6967', '4999', '2991', '4711', 'b', '2843', '3305', 'Z', '2379', 'C', '2181', 'O', 'g', '5599', 'z', 'V', 'I', 133, 5097, 'z', 'U', 351, 153, 3679, 7753, 9233]