In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[5289, 1517, 435, 9347, 'f', 'j', 7297, 1075, '4407', 'V', '5809', 'b', '6521', 'I', 'I', 'H', '9043', 'c', 'r', 8761, 8505, 8067], ['J', 117, 'l', 'k', 'y', 'e', 8747, 'N', 2331, '4407', 'V', '5809', 'b', '6521', 'I', 'I', 'H', '9043', 'Z', 2727, 'L', 'y', 921, 'Z', 'v', 'v']