In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4051, 5539, 'y', 'B', 8413, 'Z', 'C', 'X', 'D', 'U', 8967, 2687, 6725, 'Z', 'C', '1835', 'Y', 'Q', '6613', '8195', 'D', 'e', '4735', 'c', '2891', '7465', 'T', 'H', '3099', '2881', '4293', 'G', 'H', 'O', '9951', 'P', 'e', 'i', '8209', 'o', 'p', 'U', 'G', 'S', 'k', 'T', 2761, 8335, 'o', 6341, 3601, 'O', 'u', 9279, 1369, 'Y', 'M', 9011, 2533, 'F', 'p', 5603, 3755, 'F', 'g'], [1847, 8709, 'E', 'c', 'H', 'Z', 393, 'H', 2283, 1521, 9411, 'c', 'I', 2253, 'z', 1215, 9191, 8991, 'Z', 'C', '1835', 'Y', 'Q', '6613', '8195', 'D', 'e', '4735', 'c', '2891', '7465', 'T', 'H', '3099', '2881', '4293', 'G', 'H', 'O', '9951', 'P', 'e', 'i', '8209', 'o', 'p', 'U', 'G', 'T', 'b', 'z']