In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[8243, 'v', 3145, 'N', 'i', 'X', 7401, 'j', 7623, 'D', 8979, '3539', '8289', '6275', 'F', 'X', 'J', 'Q', 'l', '311', 'x', 'f', '4703', '1669', '871', 'E', 'n', 'n', 2071, 2273, 'd', 45, 'm', 7061, 'D', 'S', 8061, 7507, 'Z', 8559], ['p', 6889, 'J', 'v', 1859, 1015, '3539', '8289', '6275', 'F', 'X', 'J', 'Q', 'l', '311', 'x', 'f', '4703', '1669', '871', 'E', 'n', 'I', 2331, 'y', 2663, 2683]