In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
--------
Question: [6423, 'w', 'K', 'm', 'S', 'X', '8857', 'r', '9809', 'a', 'g', '7297', 'H', 'Q', 'W', 'I', 'm', '3277', 'm', 'W', 'L', 'H', 'S', 'X', 'y', 2479, 'p', 'B', 7193, 8327, 'X', 8547, 2261, 'X', 477, 535, 'w', 'f', 2923], [5389, 6751, 'F', 'l', 9579, 'A', 'S', 'X', '8857', 'r', '9809', 'a', 'g', '7297', 'H', 'Q', 'W', 'I', 'm', '3277', 'm', 'W', 'L', 'H', 'O', 't', 8821, 'H', 3919, 7667, 'x', 'v', 4035, 3179, 9235, 5679, 'c', 'P']

Answer: S, X, 8857, r, 9809, a, g, 7297, H, Q, W, I, m, 3277, m, W, L, H


Question: [7231, 2153, '3257', '3693', 'P', 3291], [1543, 6411, '3257', '3693', 'G', 'k']

Answer: 3257, 3693


Question: [9529, 1985, 'O', 'p', 'l', '349', 'E', 'G', '9993', '9275', 's', '6931', 'm', '2567', 'U', 'E', 2381, 'Z'], [6861, 'M', 'l', '349', 'E', 'G', '9993', '9275', 's', '6931', 'm', '2567', 'U', 'C', 'W']

Answer:
l, 349, E, G, 9993, 9275, s, 6931, m, 2567, U