In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4935, 'n', 605, 'Q', 'X', 'm', '9527', '8581', 't', 'v', 'q', 'T', 'l', 'K', 7425, 'Z', 9315], [8391, 3225, 'p', 305, '9527', '8581', 't', 'v', 'q', 'T', 'l', 'f', 'k', 9331]