instruction:
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:
['w', 5919, 'P', 6117, 7697, 'Y', 4467, '3097', '2793', 'x', 'P', 'c', 'o', '8777', 'D', '1983', '2397', 'X', 't', 'k', '8109', '2549', 'b', '7173', '3843', 'k', 'u', 'P', 1347, 'y', 'r', 'o', 5611, 'L', 999, 4781], [9955, 'n', 8107, 7059, 'V', 'E', 2417, 1811, 3625, 623, 'T', 'R', 'p', 'l', 'W', 8103, 3691, 'N', '3097', '2793', 'x', 'P', 'c', 'o', '8777', 'D', '1983', '2397', 'X', 't', 'k', '8109', '2549', 'b', '7173', '3843', 'k', 'k', 'p', 'L', 1311, 591, 'J', 5611, 'Q', 'p', 'I', 5921, 237, 'y', 1981, 3861, 'B', 'n', 'r', 'H']
answer:
3097, 2793, x, P, c, o, 8777, D, 1983, 2397, X, t, k, 8109, 2549, b, 7173, 3843, k


question:
[1419, 7, 5507, 3913, 'k', 'z', '6657', '817', 'G', '5839', '5885', 'n', '3685', 'b', '7375', 'S', 'p', 7449, 8117, 1619, 3173, 'w', 5493], [883, 8079, 2657, 8665, 7305, 'a', 7231, 9293, 'k', 'z', '6657', '817', 'G', '5839', '5885', 'n', '3685', 'b', '7375', 'S', 'A', 8287, 9719, 5919, 'p', 'e', 7975, 'B', 'O', 779, 'V']
answer:

k, z, 6657, 817, G, 5839, 5885, n, 3685, b, 7375, S