Teacher: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
Teacher: Now, understand the problem? If you are still confused, see the following example:
[5797, 8817, '8297', 'b', 'U', 'b'], [5843, 8809, '8297', 'b', 'W', 'C']
Solution: 8297, b
Reason: Here, '8297, b' is the longest common subsequence in both the input lists [5797, 8817, '8297', 'b', 'U', 'b'] and [5843, 8809, '8297', 'b', 'W', 'C'].

Now, solve this instance: [2247, 'n', 'M', 'f', 359, 4073, 'J', 7551, '5885', 'W', '7191', 'g', '101', '47', 'M', 'y', 'o', '5399', '9781', '4417', 'L', 'T', 'z', 2543, 6301, 4573, 's', 5483, 1781], [5519, 5307, 'o', 'j', 'R', 'q', 4331, 1801, '5885', 'W', '7191', 'g', '101', '47', 'M', 'y', 'o', '5399', '9781', '4417', 'L', 't', 2297, 's', 9263, 3927, 7221, 'W', 'K', 'S', 977, 'I', 'v']
Student:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
5885, W, 7191, g, 101, 47, M, y, o, 5399, 9781, 4417, L