TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
PROBLEM: ['t', 'W', 'i', 't', 4163, 'd', 'k', 'Y', 'V', '5149', '6959', '6843', '7821', '6533', 'g', '6879', 'T', 6267, 5627, 'u', 'g', 'F', 3861], ['f', 'g', 'N', 'I', 'C', 4633, 'Y', 'V', '5149', '6959', '6843', '7821', '6533', 'g', '6879', 'A', 'K', 1819, 3343, 8603, 'h', 1751, 'h']

SOLUTION: Y, V, 5149, 6959, 6843, 7821, 6533, g, 6879

PROBLEM: ['X', 1863, 6105, 'n', 8419, 6469, 'u', 'p', '1641', '1413', '6389', '7069', '1333', 'q', '9609', 'D', '843', '2667', '223', '6689', 'B', 9885], ['l', 'L', 'S', 'p', 'j', '1641', '1413', '6389', '7069', '1333', 'q', '9609', 'D', '843', '2667', '223', '6689', 'F', 5539, 'C', 1383, 'n', 9991]

SOLUTION: 1641, 1413, 6389, 7069, 1333, q, 9609, D, 843, 2667, 223, 6689

PROBLEM: ['B', 2419, 'n', 6163, 'h', 'J', 'U', 'u', 'O', 'o', 9979, 'P', 'A', 6161, '5851', '3847', '5281', 'f', '2039', 'C', '549', 'l', '1991', 'X', '2931', 'M', '9895', 'X', '3923', '9291', 'D', 263, 'l', 4237, 'L', 'Y', 3207, 'l', 6137, 'y'], ['l', 4639, 'G', 4127, 'D', 9621, 'r', '5851', '3847', '5281', 'f', '2039', 'C', '549', 'l', '1991', 'X', '2931', 'M', '9895', 'X', '3923', '9291', 'x', 3147, 'N', 9647, 3147]

SOLUTION:
5851, 3847, 5281, f, 2039, C, 549, l, 1991, X, 2931, M, 9895, X, 3923, 9291