In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9659, 6667, 'Z', 'N', 'P', 7729, 'd', 757, 8173, 'R', 5267, 1541, 'z', 'x', '9505', 'g', 'n', '4329', '3215', 'r', '4007', 'y', '2315', 'l', '199', 'A', '813', 'O', 'O', '6841', 'N', '8979', 'S', 'P', 'w', '571', 'F', '4471', 'I', 'e', 'O', 7959, 7413, 'B', 5017], [323, 8851, 4107, 4737, 3359, 9309, 'R', 'I', 'i', 'O', 2477, 'b', 'o', 'V', 2975, 9685, 'f', 'U', 9277, 'v', 'L', 2871, 1089, 4281, 169, 'Q', 'z', 'x', '9505', 'g', 'n', '4329', '3215', 'r', '4007', 'y', '2315', 'l', '199', 'A', '813', 'O', 'O', '6841', 'N', '8979', 'S', 'P', 'w', '571', 'F', '4471', 'I', 'G', 'K', 6771, 6713, 'p', 'c', 9483, 1407, 4477, 'G', 6765, 6615, 5487, 771, 'v', 'n', 'U', 'Q', 6455, 'k']