In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['O', 5537, 4385, 2391, 'F', 747, 'q', 1835, 725, 'n', 8661, 'M', 9463, 9213, 'B', 'O', 7285, 'R', 'B', 'd', '9579', '3729', '8041', '9921', 'C', 'n', '4949', '7989', 'S', '1129', '9235', '5855', '7025', 'V', 'C', '4985', 'O', 'u', 'E', 'X', 'X', '5473', '307', '1367', 'm', 'i', '3393', 'b', 'H', 'W', 2967, 'm', 5327, 2351, 'N', 4889, 3941, 'H', 703, 2479, 'X', 'n', 'B'], ['P', 'k', 'd', '9579', '3729', '8041', '9921', 'C', 'n', '4949', '7989', 'S', '1129', '9235', '5855', '7025', 'V', 'C', '4985', 'O', 'u', 'E', 'X', 'X', '5473', '307', '1367', 'm', 'i', '3393', 'e', 'E', 139, 'b', 'C', 'q']