In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4301, 2885, 'X', 8841, 3911, 'l', 4267, 'M', 3861, 8005, 'm', '4475', 'b', '9275', 'w', '1043', '2027', '1', 'M', 'y', 'W', '3565', '8755', '6253', '5453', 'W', 'Z', 'f', 7767, 5683, 'l', 8029, 'C', 5169, 'F', 'b', 5421, 's', 'q', 203, 4903, 9957, 9367], [4131, 'w', 3479, 'z', 'm', 9829, '4475', 'b', '9275', 'w', '1043', '2027', '1', 'M', 'y', 'W', '3565', '8755', '6253', '5453', 'W', 'Z', 'v', 1275, 3867, 6831, 6147, 'K']