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: ['y', 3891, 'd', 'A', 'F', 'm', 'E', 'K', '929', 'x', 'o', '657', '5171', '5855', '7399', '3423', '3051', 'K', '1831', 'N', '3633', '2917', '4227', '2187', 'A', 'U', 'L', '3663', '8129', '775', 'c', 'Y', 'J', 2265, 4437, 'k', 'n', 4673, 5321, 'c', 6557, 'd', 'r', 6879, 7053, 99, 6815], ['h', 1989, 5709, 3995, 5539, 4129, 'E', 'K', '929', 'x', 'o', '657', '5171', '5855', '7399', '3423', '3051', 'K', '1831', 'N', '3633', '2917', '4227', '2187', 'A', 'U', 'L', '3663', '8129', '775', 'c', 'E', 5513, 9039, 3891, 'e', 'Z']
Solution: E, K, 929, x, o, 657, 5171, 5855, 7399, 3423, 3051, K, 1831, N, 3633, 2917, 4227, 2187, A, U, L, 3663, 8129, 775, c