In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['c', 'Q', 'N', 731, 'Y', 'p', 'E', 'I', '6421', '951', 'S', '283', 'b', '9601', 'I', 3501, 1563, 'n', 'W', 2619, 1357, 4723], [9205, 2471, 'v', 'v', 'p', 'E', 'I', '6421', '951', 'S', '283', 'b', '9601', 'p', 'b', 1935, 3445, 5735]