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

[7937, 'O', 't', 'q', 'A', '5875', '3561', '2131', 'L', '9023', 'A', '4107', 'Y', 'h', 'A', '8649', '6349', 'S', '1841', 'X', 'Y', '8859', '2327', 'x', '6845', 'P', 9541, 'K', 'P', 'I', 'd', 2929, 3037, 's', 'o'], [5771, 'e', 6539, 3301, 7501, 1959, 2737, 'W', 347, 'S', 'A', 7789, 1561, 'G', 's', 1703, '5875', '3561', '2131', 'L', '9023', 'A', '4107', 'Y', 'h', 'A', '8649', '6349', 'S', '1841', 'X', 'Y', '8859', '2327', 'x', '6845', 'C', 4525, 2207, 8867, 'D', 'c', 9997, 'f', 'E', 'd', 2503, 527, 's', 'Q', 'Y', 'R', 4405, 'a']
5875, 3561, 2131, L, 9023, A, 4107, Y, h, A, 8649, 6349, S, 1841, X, Y, 8859, 2327, x, 6845

[4275, 8037, 5099, 'T', 2089, 'E', 5305, 'r', 'k', 9537, '57', 'v', '6257', '5991', '6455', 'a', '9565', '885', 'F', '2219', '2797', '9309', 'J', 'O', 2707, 8633, 8875, 9045, 'q'], [3221, 'f', 3167, '57', 'v', '6257', '5991', '6455', 'a', '9565', '885', 'F', '2219', '2797', '9309', 'J', 'C', 3665, 'm', 6901, 3441, 5601, 6983, 'i', 'z']
57, v, 6257, 5991, 6455, a, 9565, 885, F, 2219, 2797, 9309, J

['p', 3743, 'c', '1967', 'h', '5793', '1905', '8801', '5721', 'X', 'K', 2571, 'e', 'x', 8709], ['o', 8253, 'a', 2253, 5871, 'S', 'c', '1967', 'h', '5793', '1905', '8801', '5721', 'X', 'G', 'O', 'W']

c, 1967, h, 5793, 1905, 8801, 5721, X