In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['s', 'X', 't', 's', 2633, 8133, 8163, 'O', 'Y', 't', 'B', 'd', '45', 'M', '3415', '3867', '3007', '1727', '2963', '8827', '299', 'y', '8479', 't', 'i', '407', '7699', 'F', 'Y', '6359', 'X', 'W', 'k', '3095', 'Z', 'Y', '2597', '579', '6289', 'Y', 'O', 5327, 'g', 'G', 17, 'm', 'b', 'D', 'S', 5725, 'a', 'v', 'Q', 'v', 'N', 'f'], [5431, 'f', 8053, 'x', 8659, 'B', 'd', '45', 'M', '3415', '3867', '3007', '1727', '2963', '8827', '299', 'y', '8479', 't', 'i', '407', '7699', 'F', 'Y', '6359', 'X', 'W', 'k', '3095', 'Z', 'Y', '2597', '579', '6289', 'Y', 'k', 7039, 'B', 'Z', 717, 'D', 3055, 'z', 8279, 's', 'C', 3837, 6717, 5161, 'C', 9339, 8593, 1669, 1883, 'z', 2253, 2011, 'V', 'R', 1385, 5123, 'f', 'y', 'p', 'g']