In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['G', 2661, 'X', 'L', 'S', 3591, 4675, 4887, 'v', '693', 'E', 'T', '8585', 'm', '9003', '1137', 'J', 'n', '7981', 'B', 'i', '2773', 'W', 6507, 'w', 9791, 7575, 5079, 7829, 5659, 't', 7493, 'P', 1315, 'V', 'i'], [2489, 3869, 6979, 5775, 'W', 6755, 5275, 6879, 'v', '693', 'E', 'T', '8585', 'm', '9003', '1137', 'J', 'n', '7981', 'B', 'i', '2773', 'O', 7577, 4655, 4473, 1057, 15, 7991, 't', 4171, 1249, 7269, 5917]