In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['h', 8925, 'a', 'x', 8681, 's', 't', 5661, 'y', 6889, 't', 'F', 'B', 'R', '5601', 'A', 'z', 'Z', 'D', '7507', '8939', 'l', 'a', '5021', 'M', '1883', '1703', '3493', 'F', 2405, 'C', 5965, 'X'], [3807, 1607, 8211, 'm', 'C', 5231, 2405, 1435, 'v', 'F', 'U', 'u', 3377, '5601', 'A', 'z', 'Z', 'D', '7507', '8939', 'l', 'a', '5021', 'M', '1883', '1703', '3493', 'J', 7139, 9855]