In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['o', 8351, 7471, 'W', 'G', 'G', 6771, 'n', 'T', 9193, 'V', 4883, 'd', 'i', 'L', 'U', 521, 6063, 6407, 7793, 'i', 'f', 'j', 'd', 8797, '1991', 'P', 'G', '3339', '561', 'O', '4043', '9245', '4663', 'J', 'O', 'S', '5465', 'k', '8765', '549', '2277', '3853', '3819', '7829', '1173', '7259', '6161', '5081', '1493', 'l', '5347', 'D', 'i', 7853, 'n', 5221, 's', 'V', 'l', 7189, 5931, 'v', 9533, 'z', 'I', 8395, 'G', 'p', 'L', 8909, 'y', 9407, 7597, 'b', 'j', 6981, 6537, 8035], ['S', 'L', 'h', '1991', 'P', 'G', '3339', '561', 'O', '4043', '9245', '4663', 'J', 'O', 'S', '5465', 'k', '8765', '549', '2277', '3853', '3819', '7829', '1173', '7259', '6161', '5081', '1493', 'l', '5347', 'N', 3497, 'P', 9571, 's', 4719, 'x']