In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6327, 'P', 'e', 7401, 7765, 2579, 'X', 'l', 'O', 'k', '9495', 'X', 'A', '3847', '8303', '7243', '8373', '765', '6715', '457', '315', '7547', 'k', '6135', 'd', '1803', 'b', 'K', 'x', 395], ['J', 'u', 3113, 2313, 'O', 'k', '9495', 'X', 'A', '3847', '8303', '7243', '8373', '765', '6715', '457', '315', '7547', 'k', '6135', 'd', '1803', 'b', 't', 4915, 7725, 'F', 'y', 4213, 3639, 3123, 3025, 8329]