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: ['W', 5745, 9687, 8219, 6925, 'n', 7393, 5339, 'r', 'K', 8849, 4505, 'Q', 'q', 'u', 3579, 3505, 'n', 'A', 5285, 'V', 'l', 'S', 'r', 'i', '4871', '4169', '561', 'l', 'V', '5075', '6765', 'l', 'v', 't', '2743', '561', '3661', '5931', '669', '117', '2313', '9917', '7919', 'N', '4243', 'X', '5915', '795', 'n', '8933', 'G', '6891', '2945', 'P', 83, 'e', 'X', 9089, 'O', 'F', 'V', 'T', 3503, 1567, 6783, 'E', 5401, 'Z', 'M', 9537, 2377, 'V', 3411, 6599, 'G', 'W', 7019, 'c'], ['C', 9429, 'o', 8681, 'e', 'x', 4909, 5645, 5335, 4671, 9731, 8129, 2505, 629, 'z', 'M', 'e', 5797, 6431, 287, 'i', '4871', '4169', '561', 'l', 'V', '5075', '6765', 'l', 'v', 't', '2743', '561', '3661', '5931', '669', '117', '2313', '9917', '7919', 'N', '4243', 'X', '5915', '795', 'n', '8933', 'G', '6891', '2945', 'L', 3249, 'R', 'Z', 'z', 'E', 'k', 1331, 'c', 'l', 1609, 'x', 8835, 'P', 'v', 'y', 4213, 'B', 8757, 'p', 'g', 3789, 3683, 9763, 'r']
Student:
i, 4871, 4169, 561, l, V, 5075, 6765, l, v, t, 2743, 561, 3661, 5931, 669, 117, 2313, 9917, 7919, N, 4243, X, 5915, 795, n, 8933, G, 6891, 2945