In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['C', 'd', 'U', 'O', 'X', 'Q', 75, 'n', '1745', '4477', '5381', 'S', 'G', '257', 'Q', '2891', 'e', 'U'], ['G', 'H', 7457, 'N', '1745', '4477', '5381', 'S', 'G', '257', 'Q', '2891', 'G', 'x', 'm', 865, 9285, 1495, 'l', 'J']