In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4945, 233, 9601, 'n', 1497, 'g', 1803, 'g', 'n', 'Y', 3303, 'z', 'i', 4315, 't', '2899', 'G', '6799', '287', 't', 'z', 'O', '3183', '8463', 'K', 'E', '6507', 'Y', '2739', 'F', 'K', '2101', '3839', 'u', 7725, 1283, 'R', 5787, 4075, 'M', 'Z', 9391, 'W', 7169, 5765], ['W', 753, 't', 3341, 5405, 1355, 4937, 'q', 3965, 'Y', '2899', 'G', '6799', '287', 't', 'z', 'O', '3183', '8463', 'K', 'E', '6507', 'Y', '2739', 'F', 'K', '2101', '3839', 'x', 2905, 'v', 7861, 8029, 'S', 1173, 4249, 'j', 2513, 'S', 1225]