In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[233, 'w', 4497, 6689, 'A', 'A', 'H', 9235, 'B', 'c', 'u', 'r', '3599', 'f', '311', '9615', '9171', 'x', '7155', '4769', 'l', 'H', 'u', '461', 'h', 'O', 'R', 3323, 'v', 'e', 6721, 'q', 'W'], [2797, 2029, 'N', 103, 'J', 'U', 't', 1167, 'T', 'G', 'u', 4887, 'r', '3599', 'f', '311', '9615', '9171', 'x', '7155', '4769', 'l', 'H', 'u', '461', 'h', 'M', 6087, 'z', 'C', 'L', 'C', 7375, 7523, 3383]