In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6139, 'h', 9727, '4141', 'g', 't', 'b', '7383', '5835', 'l', 8357], ['N', 8847, 'g', 9301, 'k', 6913, '4141', 'g', 't', 'b', '7383', '5835', 'j', 8789]