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']
Example solution: 8297, b
Example explanation: 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'].

Problem: [2383, 8233, 6595, 67, 'y', 'y', 'I', 'a', 'H', 'G', 'k', 'R', 'q', 'F', 'j', 'o', '7901', 'c', '4261', 'N', 'i', 'b', 5623], ['Z', 2011, 631, 5873, 9693, 9209, 'Z', 'M', 565, 8513, 'Z', 'y', 'y', 'I', 'a', 'H', 'G', 'k', 'R', 'q', 'F', 'j', 'o', '7901', 'c', '4261', 'i', 1767, 'Q', 5371, 1773, 2595, 917, 'W', 9321, 'k', 6931]

Solution: y, y, I, a, H, G, k, R, q, F, j, o, 7901, c, 4261