In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2407, 8269, 'F', 1177, '4645', '6053', '9485', 'm', '1553', '6747', '467', 'Z', 'e', 'E', 3081, 6881, 'B'], [7247, 5633, 2857, 'p', '4645', '6053', '9485', 'm', '1553', '6747', '467', 'r', 'b', 2053, 'W', 'a', 'L', 7037]