In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7011, 8223, 'r', 'o', 'a', 'b', 711, 7835, 'n', 'R', 471, 'r', 4955, 6003, 'c', 's', 1279, 'i', 'o', 'U', 'a', 'm', '8465', 'G', 'b', 'v', 'D', 'o', 'C', 'K', '9029', '8645', 'R', '6633', 'r', 201, 6429, 'x', 1135, 'H', 'G', 9701, 'F', 343, 'O'], [7675, 9615, 'C', 'N', 9607, 2887, 'p', 7013, 'X', 'W', 'g', 7533, 't', 'X', 7029, 213, 8643, 'i', 'o', 'U', 'a', 'm', '8465', 'G', 'b', 'v', 'D', 'o', 'C', 'K', '9029', '8645', 'R', '6633', 'y', 6101, 'Q', 'P', 'k', 8337, 8831, 3827, 8527, 4897, 4065, 959, 6241, 2263, 3909, 'Y', 6239]