In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['H', 7199, 'q', 7357, 5773, 4885, 'F', 'x', 'T', 'S', 'n', 'c', 6459, '7229', 'n', '2759', '3877', '1991', 'C', 'H', 'M', '2721', '6105', '5925', '2055', '1949', 'I', 'y', 'Y', 4269, 6587], ['k', 'g', 'N', 't', '7229', 'n', '2759', '3877', '1991', 'C', 'H', 'M', '2721', '6105', '5925', '2055', '1949', 'I', 'e', 'w']