In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6927, 'J', 4321, 5361, '7623', '2389', '549', '4727', 'j', 'v', 'I', 'i', '1995', '6401', '2735', 'G', 'm', '9651', 'S', '6803', 'Y', 1825, 'T', 3683, 'e', 'D', 8473, 5407, 4845, 'p', 'L', 6003, 4377], ['O', 'V', 1139, 'n', '7623', '2389', '549', '4727', 'j', 'v', 'I', 'i', '1995', '6401', '2735', 'G', 'm', '9651', 'S', '6803', 'V', 'd', 4141, 877, 'Q', 6405, 'F', 'u']