In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['L', 609, '8879', '2731', 'j', 'z', 'L', 'A', '4723', '2881', 'x', 'R', '1145', '3079', '7089', '10003', '933', '2159', 'M', 'F', '1145', '1175', 'R', 8021, 't', 'y', 9955], ['A', 2625, 1551, 'h', 9073, 'N', 3491, '8879', '2731', 'j', 'z', 'L', 'A', '4723', '2881', 'x', 'R', '1145', '3079', '7089', '10003', '933', '2159', 'M', 'F', '1145', '1175', 'y', 6571, 5941, 9565, 1155, 1629, 'C', 7167, 6369, 'E', 4469, 6339, 621, 'l', 8985, 's', 'p']