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: [6305, 'F', 's', 'f', 'N', 'Q', 'D', 5191, 'Q', 9923, 'K', 9823, 'M', 5043, 1179, 'd', 'u', 2873, 8125, 4409, 6773, 8133, 'J', 2523, 'n', '727', 'a', '8125', '9321', '4951', '2741', 'S', '881', 'p', '2911', 'P', '4869', '4935', '9095', '849', '8127', '7379', 'M', 'r', '267', '3921', 'I', 'V', '2923', '9577', 'w', 'b', 'N', 'p', 5379, 'l'], [2253, 5817, 471, 'K', 'g', 'y', 9345, 3773, 'e', 'x', 5733, 4251, 3277, 1637, 3239, 471, 6889, 't', 'n', '727', 'a', '8125', '9321', '4951', '2741', 'S', '881', 'p', '2911', 'P', '4869', '4935', '9095', '849', '8127', '7379', 'M', 'r', '267', '3921', 'I', 'V', '2923', '9577', 'w', 'b', 'N', 'x', 'W', 'G', 8063, 'L', 'M', 'D', 989, 3197, 'u', 4613, 'D', 6035, 'T', 1629, 4533, 'p', 'a', 593, 7363, 'p', 5629, 4811, 6773, 645, 5017, 'v']
Student:
n, 727, a, 8125, 9321, 4951, 2741, S, 881, p, 2911, P, 4869, 4935, 9095, 849, 8127, 7379, M, r, 267, 3921, I, V, 2923, 9577, w, b, N