In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[5657, 7541, 'A', 8679, 3647, 8501, 7769, 4265, 'w', 7093, 6221, 'F', '5041', '3503', '1563', 'D', '2823', 'F', 'y', 'v', '7207', 'A', 'm', '6179', '5881', 'N', '8397', 'Z', 'Z', 'f', 'X', 3135], [3123, 'k', 'W', 'i', 8821, 8925, 5221, 't', 'F', '5041', '3503', '1563', 'D', '2823', 'F', 'y', 'v', '7207', 'A', 'm', '6179', '5881', 'N', '8397', 'Z', 'Z', 'f', 'N', 'b', 3939, 'f', 4821, 'S', 'e', 'G', 'o', 5227, 'U', 9463, 'b']