In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7449, 'Q', 1959, 'c', 'e', 'K', 'W', 'o', 9367, 'O', 'g', 2349, 'k', 'E', 8783, 3073, 'H', 'g', 'b', 9739, 8431, 1409, 'U', 'J', 'V', 'w', 'c', '5097', '4349', 'E', '6887', '6575', '9059', 's', '1047', '2629', '9527', '197', 'g', 'v', 'M', '2589', 'L', 'F', '3833', '2367', 'B', 'D', 'U', 'u', 'Y', 289, 'M', 3469, 't', 'a', 'Z', 'p', 'V', 'S', 'm', 5419, 3259, 's', 'e', 9367, 9559, 9267], [9207, 2213, 7379, 4671, 'J', 'V', 'w', 'c', '5097', '4349', 'E', '6887', '6575', '9059', 's', '1047', '2629', '9527', '197', 'g', 'v', 'M', '2589', 'L', 'F', '3833', '2367', 'B', 'D', 'U', 'G', 't', 1923, 'C', 195, 6143, 'w', 'B', 'A', 's', 't', 'u', 309, 'C', 'J', 1835, 'c', 9467, 'Y', 4155, 2625, 'G', 6877, 'z']