In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['n', 3489, 8863, 9345, 'f', 461, 8033, 'G', 'e', 1605, 'm', 'U', 4987, 'd', 'n', 3177, 'v', 2785, 'b', 327, 'm', 401, 'p', 5665, 'i', 'C', 'l', 'g', 'g', 'Q', 'C', 'c', '3209', '447', '7129', '2241', 'H', '4843', '9185', 'X', 't', 'r', '1685', 'h', '1763', 'L', '6675', 'y', '5147', 'u', 'X', '393', 'W', 'j', 'e', 'V', 2163, 'j', 'u', 9753, 'C', 'U', 4583, 'v', 'A', 'b', 'W', 'O', 'U', 2827, 'E', 7139, 5949, 'T', 'b', 'J', 8719, 3917, 'H', 'i'], [1275, 7729, 4089, 'r', 'H', 'q', 7305, 'O', 'P', 'D', 511, 'W', 'J', 2939, 4951, 'X', 2757, 'l', 'Q', 'u', 'w', 3201, 'N', 'i', 'C', 'l', 'g', 'g', 'Q', 'C', 'c', '3209', '447', '7129', '2241', 'H', '4843', '9185', 'X', 't', 'r', '1685', 'h', '1763', 'L', '6675', 'y', '5147', 'u', 'X', '393', 'W', 'w', 9803]