In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['Y', 8473, 5123, 6453, 9981, 't', 'Z', 2407, 'e', 'K', 2569, 'o', 8163, 'Y', 'J', 'f', 3291, 'Q', 2137, 'k', 8627, 2741, 3011, 589, 'J', 'v', '2273', 'w', '3275', '6361', '7377', '5945', 'p', 'p', '1883', '7061', 'f', '9945', '799', '6239', '6301', '5705', '259', 'b', 'T', '8477', 'G', 'F', 'X', '7523', 'D', '3643', 'o', 'a', 'E', 'P', 'X', 9363, 'Q', 'b', 'b', 2581, 5257, 'B', 1649, 'f', 'W'], ['h', 'I', 'm', 'n', 'V', 4799, 'P', 'y', 'j', 9383, 113, 1131, 9189, 'J', 'v', '2273', 'w', '3275', '6361', '7377', '5945', 'p', 'p', '1883', '7061', 'f', '9945', '799', '6239', '6301', '5705', '259', 'b', 'T', '8477', 'G', 'F', 'X', '7523', 'D', '3643', 'K', 319, 'u', 'z', 4085, 8179, 2161, 1147, 6145]