In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.

[3043, 'd', 1055, '2909', 'J', 'D', '4735', '6701', 'v', 'P', '4341', '7905', 'G', '5297', '6721', 'Y', 'f', 4599], ['Q', 'X', 2931, 'f', 3139, 'r', 3625, 4375, 'B', 8381, '2909', 'J', 'D', '4735', '6701', 'v', 'P', '4341', '7905', 'G', '5297', '6721', 'N', 8281, 'W', 'u', 5969, 'w', 'b', 1735, 'j']
2909, J, D, 4735, 6701, v, P, 4341, 7905, G, 5297, 6721

['U', 2021, 9935, '873', 'T', '9883', 'y', 8789, 'v'], ['g', 7321, '873', 'T', '9883', 'p', 9721]
873, T, 9883

[4311, 2543, 'a', 5635, 'A', 't', 9267, 'M', 'U', 9689, 'y', 9299, '7909', 'M', '5681', 'o', 'J', '1155', 'u', 'Y', 'K', '3709', 'g', 'G', 'q', 'p', 'X', '9067', '8439', 'O', 8085, 7579, 'S', 7187, 'F', 3141, 'z', 3095], ['y', 'X', 'm', 7471, 2377, 'f', 'M', 'f', 'Z', 'N', 'F', '7909', 'M', '5681', 'o', 'J', '1155', 'u', 'Y', 'K', '3709', 'g', 'G', 'q', 'p', 'X', '9067', '8439', 'I', 35, 5513, 2493, 'p', 15, 2781, 'U', 2545, 'W']

7909, M, 5681, o, J, 1155, u, Y, K, 3709, g, G, q, p, X, 9067, 8439