In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.

Let me give you an example: [5797, 8817, '8297', 'b', 'U', 'b'], [5843, 8809, '8297', 'b', 'W', 'C']
The answer to this example can be: 8297, b
Here is why: Here, '8297, b' is the longest common subsequence in both the input lists [5797, 8817, '8297', 'b', 'U', 'b'] and [5843, 8809, '8297', 'b', 'W', 'C'].

OK. solve this:
['W', 'A', 2347, 'r', 'B', 3223, 'G', 6817, 'W', '9113', 'y', 'Q', 'S', '9723', '5791', 'Z', '6055', 'e', '853', 'p', '8837', 'u', 'w', 445, 8697], [523, 'h', 'H', 601, 'V', '9113', 'y', 'Q', 'S', '9723', '5791', 'Z', '6055', 'e', '853', 'p', '8837', 'u', 'x', 5619, 7339, 43, 8447, 'l', 4531, 9887, 'W', 'f', 8209]
Answer:
9113, y, Q, S, 9723, 5791, Z, 6055, e, 853, p, 8837, u