In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['b', 'B', 3937, 'F', 'V', 1175, 'O', 'P', 'p', 'j', 4011, 'G', 'n', 9565, 4205, 'O', 8347, 8343, 5633, 1499, '2197', 'C', 'm', 'A', 'J', 'Z', '1437', '5029', '345', 'M', 'd', 'Q', 'd', 'a', 'X', '4403', '3085', 'G', '8777', '7161', 'D', 'k', 'Y', '8761', '1915', 'o', 'x', 'z', 1213, 'w', 1605, 'Y', 'g'], ['V', 1827, 'c', 'r', 'h', 3929, 'b', 6029, 'X', 7473, 'K', 'O', 'D', 'c', 'u', 427, 5391, 'l', 'U', '2197', 'C', 'm', 'A', 'J', 'Z', '1437', '5029', '345', 'M', 'd', 'Q', 'd', 'a', 'X', '4403', '3085', 'G', '8777', '7161', 'D', 'k', 'Y', '8761', '1915', 'o', 'j', 'a', 1027, 4283, 'H', 6215, 7455, 1987]