In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['p', 2109, 'T', '6391', '7915', '769', 'k', '7835', '8071', 'i', '3689', 'y', '7003', '5097', 'A', '8379', 'X', '1521', '2959', '2629', '4297', '7289', 'N', '2143', '3587', 'b', '8571', '4391', 'm', 'e', 'p', 'l', 7681, 1619, 'C', 'T', 5679, 3821, 'G', 3887], ['z', 'E', 'S', 4451, 'O', 7563, 301, 1195, 'e', 2665, 3679, 'h', 'F', 'm', 4361, 'b', 9971, 4141, 1965, 5889, 7245, 3115, 9677, 'r', 7833, 'T', '6391', '7915', '769', 'k', '7835', '8071', 'i', '3689', 'y', '7003', '5097', 'A', '8379', 'X', '1521', '2959', '2629', '4297', '7289', 'N', '2143', '3587', 'b', '8571', '4391', 'R', 5449, 'G', 'Z', 1979]