In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['m', 'v', 'A', 'O', 'I', '959', '589', 'I', 'Y', '5811', 'W', '1515', '3433', 'n', '5495', 'r', 'B', '1299', 'o', 'R', '4541', '5373', '3423', 'v', 'Y', 'B', 't', 'Q', 8105, 'F', 'w', 'H'], [1389, 'F', 'O', 'I', '959', '589', 'I', 'Y', '5811', 'W', '1515', '3433', 'n', '5495', 'r', 'B', '1299', 'o', 'R', '4541', '5373', '3423', 'v', 'Y', 'B', 't', 'e', 'V', 4241, 2119, 1875, 5605, 'f', 5135, 3245, 'n', 'W', 9585, 5835, 'D', 681, 'N', 'J', 1281, 'l', 1111, 'M', 1687, 7965]