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: ['f', 6631, 'm', 3911, 'k', 5241, 'l', 5345, 2175, 9821, 1935, 2559, 4527, 1689, '4369', '9343', '619', '3945', '5925', '8053', 'y', '5277', '3687', '2971', 'g', '9413', '6269', 'j', 'r', 'r', '5753', 'h', '1337', 'h', 'm', 'm', '5167', 'd', 6871, 707, 'W', 8139, 'n', 'd', 2623, 3227, 'M', 8053, 'D', 4491, 'j', 9143], [6717, 'Z', 5949, 4405, 6001, 'j', 7723, 'k', 7597, 'i', 'G', 6471, 3235, 'e', 'e', '4369', '9343', '619', '3945', '5925', '8053', 'y', '5277', '3687', '2971', 'g', '9413', '6269', 'j', 'r', 'r', '5753', 'h', '1337', 'h', 'm', 'm', '5167', 'N', 1727, 'S', 2615, 4217, 'U', 'O', 9721, 'j', 3223, 'q', 'x', 'x', 7923]

Solution: 4369, 9343, 619, 3945, 5925, 8053, y, 5277, 3687, 2971, g, 9413, 6269, j, r, r, 5753, h, 1337, h, m, m, 5167