In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[8881, 4821, 'b', 'Y', 'L', 'R', 271, 8115, 'S', 4095, '5561', 'q', 'x', '9643', 'T', '8939', '6595', 'u', 's', '1131', 'r', 'p', 'a', 'B', 'L', '7283', 'm', 'd', 'm', 'N', '5043', 'r', 'X', 'l', 4055, 'M', 1431, 'W', 'w'], ['C', 2807, 8337, 8477, 2735, 'r', 'y', '5561', 'q', 'x', '9643', 'T', '8939', '6595', 'u', 's', '1131', 'r', 'p', 'a', 'B', 'L', '7283', 'm', 'd', 'm', 'N', '5043', 'r', 'D', 8847, 'O', 6383, 'E', 'O']