In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['s', 'v', 'G', 't', 'C', '7419', 'U', '8485', '2663', 'V', '2149', 'R', 'x', '6979', '9671', 't', 'A', 'w', 7995, 'N', 'n', 's'], ['X', 'h', 6589, 'h', 5979, 'y', 'o', 3307, 'J', 'C', '7419', 'U', '8485', '2663', 'V', '2149', 'R', 'x', '6979', '9671', 't', 'C', 'P', 'a', 'D', 'f', 4331, 4089, 'X', 'l', 9013, 6663]