In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['e', 6863, 'n', '5189', 'G', 's', '5355', '5753', 'J', 'n', 9583], [6483, 'T', 8253, 7873, '5189', 'G', 's', '5355', '5753', 'f', 'k', 'i', 2763]