In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7335, 6881, 5047, 7159, 'c', 'P', 'Z', 'i', '8743', 'u', '9495', 'D', '897', 'Y', 'q', 'K', 'l', '2265', '3295', '3813', '4437', 'J', '305', 'p', 't', 'm', '2613', '3923', 'x', '2015', '3523', 'k', 'E', 'P', 4761, 2323, 'C', 'k', 693, 5397, 'L', 5091, 6145, 'w', 'd', 'G', 5143, 5367], [2103, 'W', 7341, 7863, 'Z', 'R', 'n', 1157, 'L', 'i', 2999, 705, 3391, 'Z', 8751, 'c', 'P', 'Z', 'i', '8743', 'u', '9495', 'D', '897', 'Y', 'q', 'K', 'l', '2265', '3295', '3813', '4437', 'J', '305', 'p', 't', 'm', '2613', '3923', 'x', '2015', '3523', 'T', 6815, 9903, 621, 'G', 7825, 305, 'z', 'h', 7503, 'C', 4661, 5215]