In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7735, 'M', 'O', 'E', '1875', 'u', '4305', 'G', 'e', 'l', 'i'], ['t', 8927, 8171, 'B', 'O', 'E', '1875', 'u', '4305', 't', 'n', 'b']