In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[8569, 'y', 'D', 'p', 'l', 's', 'b', 'i', 'b', 'A', 'p', '7873', '6911', '4215', '4769', 'h', 'I', 'V', 'B', 3551, 6983, 't', 6325, 'o', 'q', 'A'], ['k', 4205, 9895, 't', 'A', 1403, 7247, 'k', 861, 9129, 'L', 'l', 's', 'b', 'i', 'b', 'A', 'p', '7873', '6911', '4215', '4769', 'h', 'l', 'h']