In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['U', 289, 'q', 'm', 'N', 3809, 657, 'E', 6539, '8483', '1793', 'M', 'r', 'Q', 'J', '5933', 'u', 'Z', 'A', '9003', '1129', '5713', '4957', 's', 's', 'w', 'm', 'Q', 'Z', '9869', 'J', 't', 'W', '2463', '2295', '3601', 'G', '1869', 'S', 'o', 1959], [1239, 'J', 'q', 9463, 'm', 7555, 4689, 'M', 'Y', 3299, 'E', 'a', 'u', 'a', 5589, 4651, 'q', 'B', 'Q', 's', 'F', 'J', 'C', 8499, 'x', 4319, '8483', '1793', 'M', 'r', 'Q', 'J', '5933', 'u', 'Z', 'A', '9003', '1129', '5713', '4957', 's', 's', 'w', 'm', 'Q', 'Z', '9869', 'J', 't', 'W', '2463', '2295', '3601', 'G', '1869', 'S', 'A', 'H', 6411, 'a', 'e', 145, 3531, 8099, 5465, 6233, 'i', 'H', 1933, 1391, 1203, 'z', 'T', 'T', 6431, 9105]