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: [5073, 2993, 1471, 'f', 9593, 'c', 'h', 's', 8353, 5665, 'F', '217', '2567', '7051', '1825', '309', '1931', 'd', 'k', '6469', '4677', '6633', 'P', '343', 'A', '4203', '1087', '9089', '4301', 'S', '6551', 'h', '2585', 'B', 'V', 'x', 'M', 5675, 'm', 3975, 6105, 'O', 7819, 4215, 'o', 1879, 'K', 'm', 5415, 'k', 4781, 'p', 9187, 'j', 633, 'r', 'r', 'x', 'J'], ['D', 'h', 853, 'h', 'd', 6189, 'P', 1427, 9581, '217', '2567', '7051', '1825', '309', '1931', 'd', 'k', '6469', '4677', '6633', 'P', '343', 'A', '4203', '1087', '9089', '4301', 'S', '6551', 'h', '2585', 'B', 'V', 'O', 'K', 'F', 6555, 8801, 8495, 6091, 'W', 'C', 'q']
Student:
217, 2567, 7051, 1825, 309, 1931, d, k, 6469, 4677, 6633, P, 343, A, 4203, 1087, 9089, 4301, S, 6551, h, 2585, B, V