In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2577, 'S', 6903, 'R', 'T', 127, 2543, 2267, 717, 9469, 1519, 5829, 'o', 'K', 'b', '873', 'J', 'b', 'P', 'T', 'k', 'U', 'Z', 's', 'c', '8663', '2215', 'b', 'b', '9743', '5891', '8959', '9683', 'v', 6129, 'B', 1371], [3611, 5091, 'O', 3683, 1437, 'n', 4845, 953, 'L', 'Y', 'b', 9241, 1937, 'B', 1171, '873', 'J', 'b', 'P', 'T', 'k', 'U', 'Z', 's', 'c', '8663', '2215', 'b', 'b', '9743', '5891', '8959', '9683', 'l', 9895, 3605, 'R', 'Z', 8321, 'A', 7277, 'g', 8667, 9485, 'Y', 9059]