In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6073, 'a', 'x', 'z', '9987', 'X', '5267', '9509', 'N', 'z', 'e', '8389', 'C', '6233', 'Q', 'P', 'K', 'f', 'm', '5739', 't', '2213', 'K', 'M', 4825, 7169, 'i', 'n', 'Y', 1431, 'H', 'n'], ['x', 'S', 569, 'z', '9987', 'X', '5267', '9509', 'N', 'z', 'e', '8389', 'C', '6233', 'Q', 'P', 'K', 'f', 'm', '5739', 't', '2213', 'v', 'x', 2609, 2541, 'E', 'm']