Given the task definition, example input & output, solve the new input case.
In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
Example: [5797, 8817, '8297', 'b', 'U', 'b'], [5843, 8809, '8297', 'b', 'W', 'C']
Output: 8297, b
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'].

New input case for you: [1521, 1887, 'K', 'e', 'e', 'f', 'v', 'g'], ['G', 6649, 'e', 'e', 'f', 'w', 4177, 'T']
Output:
e, e, f