In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['f', 'a', 'X', 'J', 'V', 'Y', 'W', 7733, 'B', '9515', '7675', '2425', 'v', 'Q', '6399', 's', '6177', '1431', '9861', 'w', 'W', 'F', '3859', 'v', '2137', '7339', '195', '9343', '6687', 'Y', '2953', '9135', 'u', '1479', '3985', 'H', '8157', '4749', 'M', 4627, 'n', 2981, 'T', 873, 'q', 1831, 'n', 'O', 7347, 3115, 2733, 'W', 2225, 'g', 6589, 'd', 9763, 'x', 'W', 'Q', 5489, 8573], ['H', 'H', 'u', 787, 7861, 'o', 8061, 2603, 'm', 'q', 't', 8647, 4807, 1307, 'u', 9331, 'w', 6301, 3117, 'K', 'T', 'G', 'B', 4303, 'B', '9515', '7675', '2425', 'v', 'Q', '6399', 's', '6177', '1431', '9861', 'w', 'W', 'F', '3859', 'v', '2137', '7339', '195', '9343', '6687', 'Y', '2953', '9135', 'u', '1479', '3985', 'H', '8157', '4749', 'i', 'X', 'm']