In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[1755, 'G', 1611, 7161, 'y', 'c', 3545, 5703, 'C', 'X', 9153, 4695, 'X', '393', 'Y', '645', 'z', '9573', '6131', 'e', '9741', '2789', '4131', 'B', '6945', 'd', 'w', 'L', 2717, 'y', 'R', 9141, 7217, 317, 'B', 'X'], [469, 1911, 9555, 'G', 5307, 'Z', 'j', 't', 6765, 'd', 'X', '393', 'Y', '645', 'z', '9573', '6131', 'e', '9741', '2789', '4131', 'B', '6945', 'd', 'C', 3541, 'i', 1181]