In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6367, 2589, 'f', 2135, 4759, '7915', '255', '6373', 'q', '9777', 'O', 'I', '6859', 'I', '179', 'C', 'i', 'v', '2745', 'p', '2577', 'I', '5967', 'D', '8245', 'X', 5441, 'Y', 8553], ['m', 8967, 5691, 'K', 'W', 'J', '7915', '255', '6373', 'q', '9777', 'O', 'I', '6859', 'I', '179', 'C', 'i', 'v', '2745', 'p', '2577', 'I', '5967', 'D', '8245', 'C', 311, 8201, 9861, 'k', 'O', 4149, 'v', 3471, 'J', 'k', 'J', 'R', 'C', 'T', 4297, 'E', 8869, 515]