In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['z', 7637, 1413, 5855, 9633, 5555, 7819, 'M', 'W', 'X', 'b', 'J', 'q', 'v', 'v', '9259', 't', 'F', 9669, 1899, 1407, 2181], ['N', 'A', 'l', 1547, 'M', 'W', 'X', 'b', 'J', 'q', 'v', 'v', '9259', 'f', 'g']