In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7489, 1201, 1567, 3085, 'n', '1719', '8953', '4431', '5507', 'u', '5729', '5713', 's', '9009', 'a', '1677', '8641', '2179', 'G', 'g', 'j', '8901', '5369', '701', '3153', 'l', 2731, 'Q', 'u', 'w', 5483, 'X', 933, 7777, 'y'], ['y', 'r', 'j', 1851, 9533, 'F', 'C', 8469, 'J', 4075, 'S', 1911, 6551, 8847, 8997, 3141, 'n', 1311, '1719', '8953', '4431', '5507', 'u', '5729', '5713', 's', '9009', 'a', '1677', '8641', '2179', 'G', 'g', 'j', '8901', '5369', '701', '3153', 'a', 'P', 'A', 'm', 7667, 'y', 9631, 'D', 'A', 1047, 3615, 'x', 'W', 'r', 5589]