In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[1021, 1109, 2489, 7791, 4113, 'j', 'L', 't', '8395', 'S', 'w', 'g', 989, 'w', 'f'], ['E', 'K', 'c', 2753, 'A', 'j', 'L', 't', '8395', 'S', 'F', 6179]