In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
Example: [5797, 8817, '8297', 'b', 'U', 'b'], [5843, 8809, '8297', 'b', 'W', 'C']
Example solution: 8297, b
Example explanation: 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'].

Problem: [3203, 'v', 7017, 'W', 'W', 'j', 4225, 'A', 'M', 299, 'B', 'a', '5755', '2267', 'Z', 'F', 'n', '9667', '289', 'B', '587', 'G', '1835', '4133', 'L', 'm', 'A', 3023, 9867, 'L', 1083, 'z', 'r', 'n', 9249, 3851], [9409, 1737, 'e', 'Q', 1479, 5753, 'D', 'N', 8861, 'H', 'I', 'S', 10021, 3383, 'B', 'a', '5755', '2267', 'Z', 'F', 'n', '9667', '289', 'B', '587', 'G', '1835', '4133', 'L', 's', 'n', 5743, 1229, 'H', 'A', 2033]
Solution: B, a, 5755, 2267, Z, F, n, 9667, 289, B, 587, G, 1835, 4133, L