In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['r', 8805, 'U', 3209, 'S', 'A', 8127, 'v', 'H', 'X', 'M', '3391', '7685', 'H', 'o', '2079', 'j', 'f', 'q', 'Q', '5307', 'L', 'k', '2917', 'N', 't', 1223, 'u', 'b', 'o', 765], ['v', 'y', 'y', 'T', 7037, 4779, 'p', 3695, 'C', 'k', 7365, 'v', 'H', 'X', 'M', '3391', '7685', 'H', 'o', '2079', 'j', 'f', 'q', 'Q', '5307', 'L', 'k', '2917', 'N', 'N', 7751, 10013, 2137, 2105, 'c', 'K', 1893, 6249, 'T', 'C', 1997, 4673, 'Y', 'o']