In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['K', 9589, 'a', 'D', 'a', 'j', '9215', 'X', 's', '9735', '7969', '9619', 'r', 'A', 'y', 7237, 'F', 'b', 'g', 'H'], [6805, 6325, 85, 'j', '9215', 'X', 's', '9735', '7969', '9619', 'r', 'L', 'z', 8029]