In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['z', 'f', 2839, '4913', 'V', 'F', '6373', 'A', '3003', '4763', '7935', 'O', 'a', '9245', '6999', 'W', 'v', 's', 'r', 9463, 'h', 'q', 'H', 4737, 'L', 9555, 1501, 9823, 9973, 'P', 'L', 'n'], [5223, 1825, 'o', 1433, 867, 'I', 'B', 'X', 'k', '4913', 'V', 'F', '6373', 'A', '3003', '4763', '7935', 'O', 'a', '9245', '6999', 'W', 'v', 's', 'Q', 7309, 7979, 33, 9133, 2063, 'H', 'E', 'y', 8897, 'K']