In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4665, 'S', 'A', 7145, 'u', 'q', 't', '3357', 'L', 'B', 'X', 'e', 'J', 'K', 'F', 'w', 'h', 'W', 'Y'], [233, 8607, 1495, 5121, 'A', 'k', 'q', 't', '3357', 'L', 'B', 'X', 'e', 'J', 'K', 'f', 'o', 5125, 'E', 'f', 'W']