In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6149, 3667, 8427, 1449, 7845, 1829, 2997, 'c', 'B', 'Y', 8479, 8693, 't', 'H', 'E', 'z', 563, 'a', 'y', 7109, 4535, 'Z', 3489, '2767', '1675', 'k', 'Y', '5867', 'o', 'p', '2607', '1661', 'R', '4593', '4919', 'p', 'p', 'T', 'Q', '407', '6967', '6993', '3909', 'b', 'I', 'A', '2125', 'F', 'A', 'H', 'A', 'm', 9339, 4761, 'z', 1853, 'c', 4977, 4523, 'h', 8917, 'n'], ['q', 5345, 'A', 'A', 'A', 'b', '2767', '1675', 'k', 'Y', '5867', 'o', 'p', '2607', '1661', 'R', '4593', '4919', 'p', 'p', 'T', 'Q', '407', '6967', '6993', '3909', 'b', 'I', 'A', '2125', 'F', 'A', 'H', 'D', 'm', 9055, 'x', 'n', 'b', 6493]