In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['H', 'U', 7297, 'l', 'i', 9243, 'M', 'T', 'T', 'g', 4477, 1953, 'e', 131, 1745, 'd', '697', '7551', 'M', '8741', 'J', '1593', 'e', '6683', '9887', '4353', '6967', 'b', 'o', '5131', '7705', '2777', '9093', 'S', '2969', 'h', '8391', '2901', 'I', 'D', 'y', 'L', 'E', 6207, 'u'], [6573, 'h', 8343, 3805, 'L', 505, 'U', 9531, 5971, 7065, 9561, '697', '7551', 'M', '8741', 'J', '1593', 'e', '6683', '9887', '4353', '6967', 'b', 'o', '5131', '7705', '2777', '9093', 'S', '2969', 'h', '8391', '2901', 'I', 'D', 'y', 'L', 'c', 't', 625, 'C', 'd', 4775, 1371, 'D', 'l']