In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['L', 'V', 5597, 1661, 'x', 'M', 3901, 'Y', 7525, 'r', 'P', 3031, 'b', 'y', '951', 'E', 'Q', 'n', '5797', '6551', '7545', '523', '6555', '3247', '1875', '5', '2955', 'y', 9635, 9141, 't', 7363, 1359, 'H', 5619], [6813, 7119, 'b', 'y', '951', 'E', 'Q', 'n', '5797', '6551', '7545', '523', '6555', '3247', '1875', '5', '2955', 'w', 2701, 'f', 9769, 6265, 6111, 'n', 5757, 915, 1583, 'N']