In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['V', 'b', 5605, 4559, 'C', 'I', 'k', '4773', 'X', '8329', 'z', 'O', '8971', 'N', '4397', 'C', 'D', 'A', 5693, 'o', 's', 'Q', 4681, 5897, 'o', 'Z'], ['N', 'Y', 3933, 8157, 'I', 'k', '4773', 'X', '8329', 'z', 'O', '8971', 'N', '4397', 'C', 'D', 'v', 7275, 7725, 1713, 9367, 7943, 7481, 6849]