In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9995, 237, 'f', 'q', '4659', 'C', '1809', 'g', '8581', '3805', '8549', 'H', '8421', 'J', '889', '1383', 'a', 'u', 'u', 'i', 6289, 6979, 8697, 9881, 1747, 4169, 99, 'V', 261, 'n', 2261, 9455], [5613, 'B', 'z', 3941, 571, 9137, 'G', 'a', 3419, 2805, 1425, 'x', 'f', 'q', '4659', 'C', '1809', 'g', '8581', '3805', '8549', 'H', '8421', 'J', '889', '1383', 'a', 'u', 'u', 'n', 3707, 5783]