In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4311, 2543, 'a', 5635, 'A', 't', 9267, 'M', 'U', 9689, 'y', 9299, '7909', 'M', '5681', 'o', 'J', '1155', 'u', 'Y', 'K', '3709', 'g', 'G', 'q', 'p', 'X', '9067', '8439', 'O', 8085, 7579, 'S', 7187, 'F', 3141, 'z', 3095], ['y', 'X', 'm', 7471, 2377, 'f', 'M', 'f', 'Z', 'N', 'F', '7909', 'M', '5681', 'o', 'J', '1155', 'u', 'Y', 'K', '3709', 'g', 'G', 'q', 'p', 'X', '9067', '8439', 'I', 35, 5513, 2493, 'p', 15, 2781, 'U', 2545, 'W']