In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[893, 'N', 9365, 'j', 5095, 'L', '6131', 'G', 'y', '153', 'S', '4219', 'B', 'z', 81, 'U', 'W'], ['N', 3639, 'L', '6131', 'G', 'y', '153', 'S', '4219', 'j', 'g', 'J', 2073, 6195, 'Z']