In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7091, 3273, 313, 'l', '2641', 'B', 'E', '6239', 'Q', 'S', '5681', 'c', 'N', 'd', 'E', '8689', '6799', '3755', '9565', 'J', 'q', 'x', '4677', 'N', 'o', 'i', 'r', 'b', 'U', '7745', 'T', 8815, 'b', 3023, 'i', 791, 5525, 'r', 'M', 3949, 9063, 169, 7687, 'G'], ['k', 639, 5091, 699, 'l', '2641', 'B', 'E', '6239', 'Q', 'S', '5681', 'c', 'N', 'd', 'E', '8689', '6799', '3755', '9565', 'J', 'q', 'x', '4677', 'N', 'o', 'i', 'r', 'b', 'U', '7745', 'J', 5669, 'p', 1199, 'I']