In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['z', 'F', 'H', 'E', 1495, 'u', 't', 'm', 'o', '1165', 'b', 75, 'B'], ['n', 'H', 'M', 'j', 3999, 'u', 't', 'm', 'o', '1165', 'r', 'x', 'W']