In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7027, 1945, 'z', 'C', 'P', 'a', 'Z', 'y', '6963', 'F', '2327', '7351', '4241', '6581', 'n', 'K', 'S', 'i', 'r', 4575], [7221, 'w', 'U', 6513, 'E', 7897, 7161, 'Z', 'y', '6963', 'F', '2327', '7351', '4241', '6581', 'n', 'K', 'S', 'q', 9971, 465, 8691, 7319]