In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['M', 'N', 'H', 'i', 'J', 7361, 5635, 5209, 7189, 2121, 'Z', 'q', '3963', '3117', '7809', 'e', 'k', '9215', 'T', '551', '8963', '5035', '9465', 'N', 'B', 9581, 'J', 9679, 'j', 'q', 'U', 'y', 2333], [5977, 6557, 7291, 2157, 'L', 7711, 'T', 'f', 'q', '3963', '3117', '7809', 'e', 'k', '9215', 'T', '551', '8963', '5035', '9465', 'N', 'y', 6047, 1853, 4017]