In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2717, 7933, 'W', 'y', '425', '783', 't', '8181', 'b', '6981', 'V', '2313', 'g', 'Q', 'F', '9821', '8805', '3497', '4947', 'e', '5515', '6663', 'V', 'f', 'w', 6009, 8687, 5751, 7217, 5951, 6727, 'g', 8289, 6419, 8191, 'W', 9343, 'J', 2319], ['q', 'H', 'p', 5515, 8083, 9241, 'M', 5925, 1565, 3111, 4763, 'C', 5505, '425', '783', 't', '8181', 'b', '6981', 'V', '2313', 'g', 'Q', 'F', '9821', '8805', '3497', '4947', 'e', '5515', '6663', 'V', 'f', 'j', 'C', 9641, 4859, 'k', 1213, 4235, 'C', 'j', 859, 3449, 'G', 9849, 4735, 'H']