In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2751, 3391, 't', 5057, 'c', 'V', 2375, 'o', 'F', 'x', 437, 'n', 'R', 'I', 'R', '3521', 'E', '2379', 'x', 'w', '6959', '7667', 'W', 'm', 'F', '7917', 'N', 'j', 'Q', '7385', 'd', 8877, 8891], [2769, 'W', 3685, 9827, 'Q', 3363, 'O', 8547, 5091, 'I', 'R', '3521', 'E', '2379', 'x', 'w', '6959', '7667', 'W', 'm', 'F', '7917', 'N', 'j', 'Q', '7385', 'P', 3419, 335, 'l', 'd', 9127, 'Y', 't', 7431, 'e', 2377, 'o', 'O', 9959, 'e', 899]