Given the task definition and input, reply with output. In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.

[7551, 5539, 'x', 'G', 'F', 'a', 'g', 'A', '6513', '2421', 'k', '1575', '5235', '5805', '8601', '2539', '3233', 'F', 'u', '4413', '8227', 'm', 'K', 8681, 61, 'Z', 4459, 4563, 'i', 5685, 4447, 'h', 7673, 'O', 'd', 6953], ['D', 'a', 2431, 'x', 'G', 'F', 'a', 'g', 'A', '6513', '2421', 'k', '1575', '5235', '5805', '8601', '2539', '3233', 'F', 'u', '4413', '8227', 'w', 8163, 'w', 'O', 2829, 'o', 'D', 9621]
x, G, F, a, g, A, 6513, 2421, k, 1575, 5235, 5805, 8601, 2539, 3233, F, u, 4413, 8227