In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['f', 'F', 7261, 5283, 'h', 9407, 'G', 'J', 5747, 'Y', 4759, 1285, 3179, 'b', 9015, 'q', 859, 'F', '9989', 'U', 'j', 'e', '7385', '2091', '2159', 'X', '659', 'N', 's', 'K', 'c', 'U', 'P', 'e', 'N', 'J', 't', 'f', 7727, 9255, 'x', 161, 'R', 'A', 'U', 4549, 7295, 'k', 'K'], [2663, 4575, 9825, 'f', '9989', 'U', 'j', 'e', '7385', '2091', '2159', 'X', '659', 'N', 's', 'K', 'c', 'U', 'P', 'e', 'N', 'J', 'V', 8107, 6321, 'Z']