In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['M', 'p', 'b', 7503, 1957, 8381, 'p', 8529, 'a', 7073, 8311, '8229', '7075', 'G', 'z', '2983', '561', '6483', 'e', '3623', '601', 'c', 'p', '7635', '1433', '139', 'Y', 't', 's', '2963', '7165', 'i', 'a', 'y', 'K', 'T', 'L', 'e', 'f', 'm', 's', 1459, 1127, 1277, 273, 4483, 'm', 'v', 'w', 5357, 'q', 'J', 'l', 'Z', 'l', 'o'], [5055, 5395, 8119, 'V', 3203, 'z', 5035, 621, 6633, 'X', '8229', '7075', 'G', 'z', '2983', '561', '6483', 'e', '3623', '601', 'c', 'p', '7635', '1433', '139', 'Y', 't', 's', '2963', '7165', 'i', 'a', 'y', 'V', 471, 3653, 'o', 7435, 'r', 'R', 'W', 8553, 'k', 7891, 6529, 7891, 'w', 'D', 'Y', 'z', 4945, 'q', 'r', 9257, 7535, 4693]