In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['P', 429, 3325, 433, 7441, 8603, 9661, 1787, 9957, 1809, 557, 'C', 8203, 1323, '7275', 'h', '7821', '8925', '4631', 'E', '7943', 'C', '2411', 'N', 'k', '9583', '941', '6831', 'H', 'L', 2905, 717, 9047, 8455, 489, 4369, 6791, 'K', 'j'], [1611, 1777, 5619, 6855, 'X', 'Z', '7275', 'h', '7821', '8925', '4631', 'E', '7943', 'C', '2411', 'N', 'k', '9583', '941', '6831', 'i', 'U', 7013, 9341, 'F', 6199]