In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['y', 8333, 4779, 1689, 'H', 7697, 's', 8009, 5709, 1779, 's', 'a', 2527, 1321, 'o', 'd', 'r', '1429', 'c', '5929', 't', '7041', 'I', '3805', '765', 'J', 'r', 'T', 'X', 'Y', '4947', '6661', 'b', 'J', 'U', 7197, 7071, 8461, 6821, 'V', 2237, 9887, 'J', 3677, 'z'], [8741, 'm', 'x', 4019, 9567, 3303, 3255, 'i', 8467, 'E', 2401, 'd', 'r', '1429', 'c', '5929', 't', '7041', 'I', '3805', '765', 'J', 'r', 'T', 'X', 'Y', '4947', '6661', 'b', 'J', 'k', 'q', 'K', 'a']