In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9293, 2147, 2199, 'H', 'l', 'S', 'j', 'z', '1211', '1125', '2455', 's', '7675', '6963', '4773', 'J', '8147', '8961', 'L', 'c', '119', '9955', 'x', '7181', '399', '5885', 'Y', '8183', '6547', '457', 'c', 'b', 'P', 'J', 'B', 6513, 1243, 6789, 'h', 'M', 'f', 'K'], ['J', 'f', 6477, 3363, 7961, 'b', 'n', 'h', 7873, 4127, 'C', 7007, 'a', 6505, 'j', 'D', 1017, 'f', 4059, 8705, 9381, 'k', 6361, 5023, 6479, 2953, 3021, 'k', 'i', 8947, 'l', 'S', 'j', 'z', '1211', '1125', '2455', 's', '7675', '6963', '4773', 'J', '8147', '8961', 'L', 'c', '119', '9955', 'x', '7181', '399', '5885', 'Y', '8183', '6547', '457', 'c', 'b', 'P', 'J', 'v', 3975, 2981]