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

[2481, 7755, 2663, 2449, 4291, 'b', 5343, 'F', 'A', '3811', 'G', 'I', '415', '6825', '2449', 'q', 'W', 'x', 't', 'K', 'l', 539, 3959], ['W', 'N', 'K', 4351, '3811', 'G', 'I', '415', '6825', '2449', 'q', 'W', 'x', 'c', 9833]
3811, G, I, 415, 6825, 2449, q, W, x

[6559, 2255, 'n', '9599', '4415', 'B', 3911, 4867], ['A', 6419, 'n', '9599', '4415', 'T', 'n', 3281]
n, 9599, 4415

[2611, 'U', 8725, 6175, 61, 'M', '671', '2085', '627', '9235', '1557', '8585', 'N', '7359', 'f', '6995', 'J', '5359', 'E', '3585', 'P', '1197', '5739', 'K', 'k', 'N', 7629, 'Y'], ['S', 'p', 5949, 8839, 'A', 'S', 7617, 'y', 'G', 2689, 4327, 6807, '671', '2085', '627', '9235', '1557', '8585', 'N', '7359', 'f', '6995', 'J', '5359', 'E', '3585', 'P', '1197', '5739', 'C', 'u', 9749, 1661, 9385, 'v', 8687, 7705, 'z', 'U', 'H', 1997, 535, 'p']

671, 2085, 627, 9235, 1557, 8585, N, 7359, f, 6995, J, 5359, E, 3585, P, 1197, 5739