In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['G', 7045, 6435, 'p', 't', '8421', 'X', 'H', 'v', 'E', 'N', 8167], ['Q', 91, '8421', 'X', 'H', 'v', 'E', 'd', 'm', 's', 389, 'L']