TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
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: [8471, 8309, 'g', 'f', 5019, 'd', 8129, 'r', 'e', 'l', 'B', '7297', 'c', '2785', '919', 'B', '5459', 'L', 5985, 2953, 6897, 'n', 9209, 3281, 'w', 4011, 't'], ['g', 7529, 'q', 6213, 'c', 'l', 6053, 'r', 'e', 'l', 'B', '7297', 'c', '2785', '919', 'B', '5459', 'B', 2159, 7633, 8707]

SOLUTION: r, e, l, B, 7297, c, 2785, 919, B, 5459

PROBLEM: ['F', 'M', 9089, 'G', 8287, 2339, 'c', 3147, 9423, '4977', '4905', '7849', 'y', 'g', '5705', '21', 'u', '7843', 'o', 5565, 'f', 'e', 1383, 'u', 'm', 5655, 'c'], [5595, 1241, 'Q', '4977', '4905', '7849', 'y', 'g', '5705', '21', 'u', '7843', 'D', 1527, 10029, 2847, 'f', 't', 1465, 'g']

SOLUTION:
4977, 4905, 7849, y, g, 5705, 21, u, 7843