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

['A', 'Y', 'B', 5539, 'i', 'u', 3953, 7153, '3019', '4737', 'Q', 'Z', '223', '7501', '1205', 'u', 'F', 'i', 4673, 5277, 2169, 'v'], [7917, 'p', 'K', 'D', 'S', 'U', 'w', '3019', '4737', 'Q', 'Z', '223', '7501', '1205', 'u', 'd', 8111, 'Q', 'b', 7059, 'L', 'u', 5107]
3019, 4737, Q, Z, 223, 7501, 1205, u

[571, 969, 3069, 7455, 'g', 'Z', 237, 8231, 71, 'X', '873', 'N', 'u', 'c', 'n', '759', 'p', 'I', '1007', 'O', 'V', '9137', 'G', '1727', '7437', 't', '8909', 'L', 'C', 'R', 3217, 1445, 3493, 'Y', 'G', 6747, 751, 1347, 7337, 'Z'], ['z', 'U', 477, 'm', 'y', 7909, 413, 6315, 'v', 7173, 1403, 'F', 'M', 7559, 7589, 9021, 'U', 2859, '873', 'N', 'u', 'c', 'n', '759', 'p', 'I', '1007', 'O', 'V', '9137', 'G', '1727', '7437', 't', '8909', 'L', 'k', 3817, 'Q', 1165]
873, N, u, c, n, 759, p, I, 1007, O, V, 9137, G, 1727, 7437, t, 8909, L

['f', 'I', 'G', 627, 6145, 4779, '7903', 'c', '6667', 'j', 'N', 'F', '8035', 'E', 'u', 'V', '3605', 'y', '9445', '1541', '6709', 'Z', 'g', 'W', '7809', 't', '1887', 's', 'a', 9101, 2313, 't', 1319, 7473, 'p', 'a', 'd', 2643, 3033, 8709], [6835, 'a', 'g', 6065, 'v', 'm', 3313, 'V', '7903', 'c', '6667', 'j', 'N', 'F', '8035', 'E', 'u', 'V', '3605', 'y', '9445', '1541', '6709', 'Z', 'g', 'W', '7809', 't', '1887', 'X', 609, 'c', 6763, 2011, 'u', 'I', 8969, 315, 1553, 967, 'c', 'W', 9607, 'u', 'E', 'g', 3559, 'd', 99]

7903, c, 6667, j, N, F, 8035, E, u, V, 3605, y, 9445, 1541, 6709, Z, g, W, 7809, t, 1887