In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
--------
Question: [621, 7677, 'b', '889', '6721', 'H', 'd', 'S'], [8151, 'F', 'b', '889', '6721', 'h', 4123]

Answer: b, 889, 6721


Question: [9317, 'w', 4993, 's', 'm', '6813', 'w', '1303', '849', 'k', '6253', '6957', '8725', '6917', 'f', '1977', '6293', '2107', 'Z', '3307', 't', '2617', 'D', 'b', 'l', '8713', 'P', 'C', 'T', 'n', 'm', 3279, 'p', 5809, 'R', 103, 'q', 7037], ['w', 'y', 1757, 'P', 5339, 'v', 2295, 'J', 'D', 6391, 4415, 3971, 2739, 's', 'm', '6813', 'w', '1303', '849', 'k', '6253', '6957', '8725', '6917', 'f', '1977', '6293', '2107', 'Z', '3307', 't', '2617', 'D', 'b', 'l', '8713', 'P', 'C', 'T', 't', 583, 2855, 'n', 't', 7281, 5103, 'E', 3181, 3639, 'G', 'c', 4007, 'H', 'v', 8375, 'j', 'I', 'r', 'l', 9621, 'X', 1885, 4309]

Answer: s, m, 6813, w, 1303, 849, k, 6253, 6957, 8725, 6917, f, 1977, 6293, 2107, Z, 3307, t, 2617, D, b, l, 8713, P, C, T


Question: [3481, 5833, 'J', 'm', 'p', '7037', '565', 'S', '9461', 'F', '271', '7867', 'V', 'j', 'u', '2879', 'G', '61', 'u', 8777, 6201, 4167, 5529, 'x'], [295, 'D', 3151, 'u', 6715, 'o', 'A', 'r', 'o', 'A', 'Q', 'J', 'm', 'p', '7037', '565', 'S', '9461', 'F', '271', '7867', 'V', 'j', 'u', '2879', 'G', '61', 'f', 'A', 'w', 'e', 9409, 425, 'F', 'Y', 3895, 8531, 733, 4383, 9041, 2947, 7573, 5677]

Answer:
J, m, p, 7037, 565, S, 9461, F, 271, 7867, V, j, u, 2879, G, 61