In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['Y', 6153, 'S', 'A', '6029', 'A', '9217', '2579', '9925', 'W', '3199', 'a', '8243', 'F', '4909', 'I', 'P', 'x', 'X', '2845', 'e', '8907', '5711', '327', '5057', 'e', '1193', 'U', '1611', 'g', '3183', '7337', 'l', 'D', 'O', 4441, 'u', 'a', 7465, 9299, 6395, 617, 4581, 'W', 5665, 'D', 8685, 6045, 7093, 4083, 'X'], [9607, 'u', 'y', 1753, 1857, 'M', 8907, 'U', 8161, '6029', 'A', '9217', '2579', '9925', 'W', '3199', 'a', '8243', 'F', '4909', 'I', 'P', 'x', 'X', '2845', 'e', '8907', '5711', '327', '5057', 'e', '1193', 'U', '1611', 'g', '3183', '7337', 'V', 2283, 9239, 'm', 7443, 'T', 1503, 'e', 'w', 1289, 2881, 'Q', 7655, 't', 'w', 'K', 2587]