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

['i', 2711, 6903, 1929, 2863, 'b', 5091, 'C', 'g', 'O', '3689', 'B', '6851', '605', '811', '8847', 'a', '3649', '5787', 'B', '6611', 'S', 'M', 5859, 'C', 7687, 'N', 1227, 5881, 8139, 'L', 'u', 1299], [4083, 2455, 'q', 'L', 3689, 'l', 'd', 9587, 'I', 'N', 'O', '3689', 'B', '6851', '605', '811', '8847', 'a', '3649', '5787', 'B', '6611', 'S', 'V', 7521, 'F', 3951, 'm', 'E']
O, 3689, B, 6851, 605, 811, 8847, a, 3649, 5787, B, 6611, S

['N', 'b', 'T', 5873, 'o', 'v', 6747, 1915, 953, '5629', '7539', '1221', 'r', '4845', 'b', 'V', '2341', '6775', '2837', 'i', '4527', 'W', '3441', '2797', '8519', 'i', '9429', '10017', 'N', 'h', 'M', '7353', 'A', 'x', 'N', 4753, 'B', 1137, 'H', 'l', 'S', 5559, 8885, 373, 8291, 5213, 'K', 1901, 'g'], ['s', 4407, 2767, 'k', 6015, 7131, 'g', 'v', 6523, 9635, 8915, 6313, 'x', 'O', 9993, 'd', 'Y', 307, 'U', '5629', '7539', '1221', 'r', '4845', 'b', 'V', '2341', '6775', '2837', 'i', '4527', 'W', '3441', '2797', '8519', 'i', '9429', '10017', 'N', 'h', 'M', '7353', 'm', 'c', 3281, 2229, 'W', 1113, 169, 'k', 'R', 1277, 'c', 'L', 'q', 'Q', 'Q', 'C', 'Y', 'j']
5629, 7539, 1221, r, 4845, b, V, 2341, 6775, 2837, i, 4527, W, 3441, 2797, 8519, i, 9429, 10017, N, h, M, 7353

[8603, 5275, 'L', 'y', 'b', 2459, 4769, 10007, 5447, 't', 'b', 3641, 1113, 'u', '2541', '7843', 'f', 'W', '7947', '3855', '1999', 'Q', '7965', '1325', 'T', '8639', 'a', '3011', '7071', 'v', 'Z', 5003, 1861, 'a', 'n', 6825, 4995, 7399, 'E', 6843, 'r'], [6727, 2315, 3769, 7741, 'u', 1575, 7673, 3647, 8763, 'r', 1909, 'F', '2541', '7843', 'f', 'W', '7947', '3855', '1999', 'Q', '7965', '1325', 'T', '8639', 'a', '3011', '7071', 'v', 'r', 'C', 2647, 'T', 'U', 3657, 'l', 8155, 'D', 'f', 9207, 1431, 'Z', 6079]

2541, 7843, f, W, 7947, 3855, 1999, Q, 7965, 1325, T, 8639, a, 3011, 7071, v