In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['T', 5987, '3759', 'O', 'x', '4311', 'e', '6841', 'R', 'd', 'y', '2745', 'n', 5107, 'w', 'u'], [6625, 'm', 8849, 3385, 6853, '3759', 'O', 'x', '4311', 'e', '6841', 'R', 'd', 'y', '2745', 'a', 'G', 'G', 'e', 3501]