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: [4717, 'J', 'B', 'f', 'a', 9035, '3041', '491', '3395', '3117', '4793', '4305', 'c', 'F', 5099], ['Q', 3557, 'y', 2689, '3041', '491', '3395', '3117', '4793', '4305', 'c', 'k', 8835, 'C', 8979]

SOLUTION: 3041, 491, 3395, 3117, 4793, 4305, c

PROBLEM: ['g', 't', 'd', 'P', 's', 'J', 2681, 'I', '7319', '2853', '7807', 'Y', 'd', '1821', 'F', '7911', 'r', 'P', 'n', 'S', 7043, 5811, 7831], ['n', 'q', 2625, 10003, 'I', 'q', 'I', '7319', '2853', '7807', 'Y', 'd', '1821', 'F', '7911', 'D', 'I', 6991, 35, 8731, 5465]

SOLUTION:
I, 7319, 2853, 7807, Y, d, 1821, F, 7911