In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[897, 4513, 'b', 4203, 'c', 'j', 3455, 'g', '863', '5907', '1095', 'l', '17', 'j', '7985', '9507', '5369', '9979', 'e', 'E', 'C', 8855, 'c', 3047, 6537, 9565], ['O', 2381, 'k', 'g', '863', '5907', '1095', 'l', '17', 'j', '7985', '9507', '5369', '9979', 'h', 'N', 9117, 9493, 'h', 4471, 7829, 9237, 8655]