In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['N', 's', 'B', 'x', 'G', 7281, 'j', 4995, 'D', 'T', 'm', '3845', 'u', 'Q', '5537', 'x', '9603', 'U', 'B', '4305', '5865', '1495', '1785', 'B', '7121', '2717', 'C', '6467', '5775', '5971', '4491', '8967', '5701', 'H', '2275', 'D', 'I', 8323, 6575], [4363, 9717, 3265, 'C', 6811, 'A', 'C', 719, 3297, 'K', 'm', '3845', 'u', 'Q', '5537', 'x', '9603', 'U', 'B', '4305', '5865', '1495', '1785', 'B', '7121', '2717', 'C', '6467', '5775', '5971', '4491', '8967', '5701', 'H', '2275', 'D', 'Y', 6465, 'O', 'K', 'h', 4819, 'L', 'm', 7909, 3173, 't', 'T', 2737, 'a', 7531, 'S', 'J', 'S', 2995, 's', 9857, 1925, 'm', 'q', 'h']