In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
Q: [2525, 5219, 'U', 'a', '9707', '5591', 't', '6775', 'k', '6605', '133', 'T', '9387', 'J', 't', '315', 'h', 'Q', 'W', '599', 'S', 'L', '9445', '4483', 'w', '703', 'u', 'u', 'O', 'v', 3521, 2001, 'b', 'O', 7935, 'D', 'G', 7183, 'T'], ['h', 8339, 'X', 7881, 'b', 9379, 'L', 'U', 'a', '9707', '5591', 't', '6775', 'k', '6605', '133', 'T', '9387', 'J', 't', '315', 'h', 'Q', 'W', '599', 'S', 'L', '9445', '4483', 'w', '703', 'u', 'C', 'D', 5661, 'l', 'W', 481, 'U', 3201, 'j', 'F', 'g', 'w']
A: 
U, a, 9707, 5591, t, 6775, k, 6605, 133, T, 9387, J, t, 315, h, Q, W, 599, S, L, 9445, 4483, w, 703, u