In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[239, 3757, '7005', 't', 'Q', 'w', 'V', 'V', 'Z', 'H', 'l', 'F', 'F', 257, 965, 2997, 'M', 'u', 'C', 5193], [3755, 5261, 4225, 'K', 'z', 7289, '7005', 't', 'Q', 'w', 'V', 'V', 'Z', 'H', 'l', 'O', 'z', 'B']