In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['t', 7533, 7349, 'a', 2529, 'O', 2575, 6661, 6673, 'E', '9183', '7823', 'a', '9601', '3167', '7973', 't', 'B', 'T', 'k', 'z', 'J', 'M', 'Z', 'd', 'S', 181, 'G', 'C', 2881, 'a'], ['g', 3651, 3051, 7741, 'r', 5683, 'J', 'A', 's', 'D', 'y', 'R', '9183', '7823', 'a', '9601', '3167', '7973', 't', 'B', 'T', 'k', 'z', 'J', 'M', 'e', 'x', 'A', 1469, 'v', 5763, 'f', 'g']