In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['x', 'w', 1479, 3695, 'W', 'I', 2179, 9571, 4501, 4599, 631, 8945, 9681, '8305', '5991', 'R', '5399', 'M', 'x', 'f', '5785', '8479', '695', '8615', '5209', 'x', 'Q', '4369', 'b', 'H', 'i', 'D', 3445, 'S', 'F', 8119, 1633, 's', 'L', 5997, 'g', 5439, 2667], ['i', 'Z', 7803, 'q', 's', 5775, 3861, 5005, 7595, 7259, 'E', 6019, 589, 'F', 1823, 'e', '8305', '5991', 'R', '5399', 'M', 'x', 'f', '5785', '8479', '695', '8615', '5209', 'x', 'Q', '4369', 'b', 'H', 'B', 'x', 5215, 8551, 'x', 't']