In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6723, 1377, 'e', 'k', 'b', 6795, 1277, '151', '4945', 'N', '7715', '4013', 'E', 'P', '1775', 'e', 'F', '321', 'L', 'g', 'V', 'J', 'N', 'v'], [3741, 'p', 'g', 'f', 's', 8691, 2087, 'N', 'p', 'J', '151', '4945', 'N', '7715', '4013', 'E', 'P', '1775', 'e', 'F', '321', 'L', 'g', 'V', 'J', 'A', 'C', 'g']