In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3093, 3419, 'c', 7589, '3111', 'c', '9991', 'y', '9557', '4989', '8451', 'G', '3257', 'p', 'U', 8737, 6201], [1347, 6123, 1355, 3639, '3111', 'c', '9991', 'y', '9557', '4989', '8451', 'G', '3257', 'H', 'n', 4943, 6863, 'h', 'j', 'e']