In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3675, 'c', 5631, 'M', 323, 5653, 'H', 'h', 4989, 'k', 3721, 53, '2257', 'n', '8345', 'K', 'o', 'C', '9299', '1163', '7713', 'N', '5961', '7063', 'g', '6625', 'J', 'K', '5409', '7237', '1887', 'J', 'L', 'Y', 'G', 'b', '3119', 'v', 4779, 'j', 2673, 'y', 'Z'], ['y', 3451, 2477, 'v', 841, '2257', 'n', '8345', 'K', 'o', 'C', '9299', '1163', '7713', 'N', '5961', '7063', 'g', '6625', 'J', 'K', '5409', '7237', '1887', 'J', 'L', 'Y', 'G', 'b', '3119', 'x', 'j', 'e', 'H', 't', 'Y', 'D', 9593, 'a', 'U', 'L', 'B', 5357, 1349, 'I', 3463, 'Q', 'Z', 8639, 4061, 5579]