In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3249, 4677, 1259, 4965, 9833, 'c', 'p', 'u', 7083, 'P', 'V', 'L', 1939, 'E', 'N', 'p', 'W', '8593', '6917', 'h', 'c', '629', '821', 'L', 'Z', '4483', 'q', 'H', '1077', '7251', '7601', 'y', 'H', '897', 'h', '6899', 'p', 2483, 'R', 'Q', 'O', 'X', 'N', 'x', 1809, 'M', 2593, 'y'], [9059, 'L', 2527, 'V', 'e', 'L', 'j', 5975, 3323, 'F', 'q', 1621, 'D', 3153, 'M', 'W', '8593', '6917', 'h', 'c', '629', '821', 'L', 'Z', '4483', 'q', 'H', '1077', '7251', '7601', 'y', 'H', '897', 'h', '6899', 'G', 131, 'N', 'b', 9415, 4391, 'q', 'f', 4221, 'x', 2399, 'Y', 'r', 9811, 'X', 2691, 4225, 'W']