In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9785, 2113, 'T', '7791', '2957', 'V', 'n', '133', 'x', '2167', '9033', 'V', '8713', 's', '8235', '6139', 'q', 'Q', 'J', 'b', '8379', '3855', 'O', '1253', '827', 'j', '6629', '8801', 'X', 'a', 'J', 'O', 9415, 7481, 2543, 6193, 5837, 6053, 'J', 9027, 'v', 2693, 7555, 9951, 'F', 7699, 7651, 'm', 'F', 'C', 'h', 'o', 'm', 'n', 2815], ['U', 'Y', 2253, 7765, 'T', '7791', '2957', 'V', 'n', '133', 'x', '2167', '9033', 'V', '8713', 's', '8235', '6139', 'q', 'Q', 'J', 'b', '8379', '3855', 'O', '1253', '827', 'j', '6629', '8801', 'X', 'Y', 'v', 7565, 9823, 'f', 3457, 9521, 'f', 2889, 2029, 8267, 4093, 'S']