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: ['V', 251, 8091, 'v', 'T', 4971, 7383, 3865, 'e', 'h', 'z', 1451, 3759, '4515', '7037', '1439', '4803', 'p', '4425', '8533', '7863', '7963', 'P', 'c', '3577', 'T', '4399', '499', 'b', 'M', 2907, 3325, 593, 9121, 2035, 7971, 'j', 'N'], ['R', 'Y', 8507, 4707, 'j', 5721, 9195, '4515', '7037', '1439', '4803', 'p', '4425', '8533', '7863', '7963', 'P', 'c', '3577', 'T', '4399', '499', 'b', 'J', 'y', 989, 'H', 4909, 3693, 3623, 'o', 911, 'g', 9819, 'R', 'v', 'U']
Student:
4515, 7037, 1439, 4803, p, 4425, 8533, 7863, 7963, P, c, 3577, T, 4399, 499, b