TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
PROBLEM: [2687, 7971, 2141, 'X', 'z', 1281, 'K', 6109, 7773, 'P', 5247, 'j', 'K', 5225, 'c', 4401, 'Z', 'j', 'Y', '4799', 'h', '5519', 'n', '3231', 'l', '3003', 'F', '5599', 'J', 'q', 'r', '889', 'e', '9805', 'X', 'B', 'k', 4913, 5483, 1465, 'F', 9669, 'i', 'L', 'q', 'n'], ['k', 'g', 'e', 'I', 'v', 97, 'N', 'j', 'Y', '4799', 'h', '5519', 'n', '3231', 'l', '3003', 'F', '5599', 'J', 'q', 'r', '889', 'e', '9805', 'X', 'H', 7153, 7967, 'u', 7859, 1387, 7361]

SOLUTION: j, Y, 4799, h, 5519, n, 3231, l, 3003, F, 5599, J, q, r, 889, e, 9805, X

PROBLEM: ['w', 5919, 'P', 6117, 7697, 'Y', 4467, '3097', '2793', 'x', 'P', 'c', 'o', '8777', 'D', '1983', '2397', 'X', 't', 'k', '8109', '2549', 'b', '7173', '3843', 'k', 'u', 'P', 1347, 'y', 'r', 'o', 5611, 'L', 999, 4781], [9955, 'n', 8107, 7059, 'V', 'E', 2417, 1811, 3625, 623, 'T', 'R', 'p', 'l', 'W', 8103, 3691, 'N', '3097', '2793', 'x', 'P', 'c', 'o', '8777', 'D', '1983', '2397', 'X', 't', 'k', '8109', '2549', 'b', '7173', '3843', 'k', 'k', 'p', 'L', 1311, 591, 'J', 5611, 'Q', 'p', 'I', 5921, 237, 'y', 1981, 3861, 'B', 'n', 'r', 'H']

SOLUTION: 3097, 2793, x, P, c, o, 8777, D, 1983, 2397, X, t, k, 8109, 2549, b, 7173, 3843, k

PROBLEM: [4989, 7519, 6539, 'G', 't', 'D', 'u', 'K', 'K', 'm', 8985, 699, 'F', 2305, 7157, 'f', 7287, '5165', '7355', '7211', '3891', 'p', '7981', '4527', '895', 'Q', '4667', '6957', 'C', 'o', '2017', 'O', 'o', '7649', 'K', 'p', 9687, 4085, 'v', 'e', 8647, 8033, 'r', 1373], [6683, 'R', 4547, 'B', 3777, 'J', 7059, '5165', '7355', '7211', '3891', 'p', '7981', '4527', '895', 'Q', '4667', '6957', 'C', 'o', '2017', 'O', 'o', '7649', 'X', 901, 'r', 'G', 'O']

SOLUTION:
5165, 7355, 7211, 3891, p, 7981, 4527, 895, Q, 4667, 6957, C, o, 2017, O, o, 7649