In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['y', 'X', 'H', 3207, 'e', 'N', 6751, 'J', 2511, 5379, 3343, 'n', 'Z', 'Z', 't', '1395', 'S', 'W', 'u', '9723', '3813', '531', '3581', 'v', '271', 'b', 'r', 'H', '365', 'D', 'l', '6863', 'y', 9385, 1481, 'P', 2833, 1561, 3103, 7633, 2165, 'O', 8071, 'n', 9437, 8863, 6537, 6223, 'N', 'Y'], [3685, 'S', 219, 'J', 3097, 'y', 6803, 307, 9171, 7941, 5101, 'M', 'O', 'R', 8995, 'e', 6409, 't', '1395', 'S', 'W', 'u', '9723', '3813', '531', '3581', 'v', '271', 'b', 'r', 'H', '365', 'D', 'l', '6863', 'N', 'y', 9345, 'F', 'a', 1627, 9063, 'E', 'k', 'B', 4585]