In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9181, 't', 'v', 'u', 9781, 2485, 'y', 'c', '2037', 'X', 'j', '3791', '7027', '5105', '6807', 'r', 'R', 'T', '5237', 'O', '1729', '4035', '2253', '6351', 'A', 'z', '3269', '163', '8829', 'x', 'n', 9921, 1041], [8755, 2403, 'k', 'K', 'd', 'c', '2037', 'X', 'j', '3791', '7027', '5105', '6807', 'r', 'R', 'T', '5237', 'O', '1729', '4035', '2253', '6351', 'A', 'z', '3269', '163', '8829', 'x', 'i', 'm', 7491, 3035, 'M', 'L', 7897, 8331, 'Z', 'k', 8139, 6535, 't', 9067, 'b', 'O', 9603, 4583, 'c', 965, 'W', 'W']