In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3073, 'o', 1497, 'U', 'K', 'U', 'u', 'T', '243', 'Q', '6229', '9949', 'Y', 'y', '1791', 'u', '9647', 'a', '6115', 'e', 'H', '4651', '5351', '2981', '4289', 'q', '3997', 'O', '5339', 't', 'R', '9323', 'K', 'F', 'z', 'q', 8419, 7651, 'c', 'm', 9329, 2305, 2455, 'a', 'l', 'N', 10027, 'X', 'v', 'E', 3939, 8653, 4539, 9579, 5971, 'C', 'Y', 'Y'], ['x', 'g', 't', 9595, 'f', 'p', 'P', 'R', 'W', 'z', 5285, 6323, 6745, 5973, 'w', 'F', 'E', 'A', 'j', 8469, '243', 'Q', '6229', '9949', 'Y', 'y', '1791', 'u', '9647', 'a', '6115', 'e', 'H', '4651', '5351', '2981', '4289', 'q', '3997', 'O', '5339', 't', 'R', '9323', 'K', 'F', 'k', 363, 685, 'f', 2801, 1761, 2183]