In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['o', 'D', 9797, 'U', 'X', 'a', '4135', 's', '5363', '1711', '7937', '4595', 'W', '3175', 'x', 'U', '5385', 'M', 'A', 'U', 'T', '2005', 'b', 'q', 'o', 'U'], ['r', 'v', 'p', 1219, 2719, 6521, 5883, 2283, 'a', 'y', 'j', 9191, 'I', 'G', 'o', 'a', '4135', 's', '5363', '1711', '7937', '4595', 'W', '3175', 'x', 'U', '5385', 'M', 'A', 'U', 'T', '2005', 'b', 'C', 'T', 1047, 'A', 8437, 7411]