In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[5093, 4031, 4503, 'I', 'P', 5025, 5755, 'v', 'u', 'X', 'd', 't', 'l', '3175', 'E', '9135', '5945', 'C', '2491', '3409', '8075', '55', 'm', 'G', 'f', '5677', '8085', '365', '5277', '7859', '7617', '2801', 'I', '227', 'U', 'K', '9447', 'O', 2151, 'v', 'h', 'k', 701, 8509, 8933, 'o', 'Y', 'y', 4065, 5803, 6283, 3365, 'b', 'U', 577, 'v', 107, 'S', 'm', 4827, 'C', 8627, 'Y', 2259, 4255], [2531, 9775, 'N', 1957, 1255, 'g', 'W', 1659, 'o', 'n', 7833, 4485, 5395, 9565, 7441, 'f', 1839, 5121, 's', 'B', 7865, 7851, 'r', 'F', 'X', 'd', 't', 'l', '3175', 'E', '9135', '5945', 'C', '2491', '3409', '8075', '55', 'm', 'G', 'f', '5677', '8085', '365', '5277', '7859', '7617', '2801', 'I', '227', 'U', 'K', '9447', 'X', 'v', 'S', 4827, 3619, 'p', 'S', 'T', 2765, 'c', 'b', 5203, 'u', 'N']