In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['Q', 'R', 2733, 2813, 3401, 'Y', 5449, 6851, 'e', 'u', 4897, '3391', 'I', 'k', '4803', 'a', '7953', 'S', 'S', '3079', '5181', 'J', 'L', 7985, 'R', 2123, 8335, 'D', 'q', 'z', 'q', 'i'], [3779, 3235, 4831, 6593, '3391', 'I', 'k', '4803', 'a', '7953', 'S', 'S', '3079', '5181', 'J', 'T', 'O', 'Q', 893, 'A', 7459]