In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['F', 'h', 'm', 'd', 8697, 'W', 6425, 7609, 'O', 847, 5211, '779', '1415', 't', '8933', '1325', 'q', '4605', 'c', 'a', '7093', '6451', '4393', 'z', '5687', 'C', '7001', 'z', '2311', '8733', '4781', '199', 't', 'B', '2405', 'L', 'y', 'F', '3071', '7819', 'q', 3369, 5315, 'm', 9135, 8125, 'x', 'd', 'B', 7935, 'C', 1763, 'a'], [2763, 'z', 8195, 'T', 4101, 2939, 8157, 'E', '779', '1415', 't', '8933', '1325', 'q', '4605', 'c', 'a', '7093', '6451', '4393', 'z', '5687', 'C', '7001', 'z', '2311', '8733', '4781', '199', 't', 'B', '2405', 'L', 'y', 'F', '3071', '7819', 's', 'd', 'f', 3635, 'm', 9779, 4617, 8679, 8533, 'y', 2131, 'e', 'O', 3961, 7799, 9203, 'B', 'R', 2905, 6067, 'j', 'C', 'f', 'G', 1357, 'I', 'v', 'O', 'v']