In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2781, 'n', 'V', 'P', 9381, 'B', 'P', 1571, 't', 'i', 'C', 4937, 5423, 87, 3253, 'w', '8469', '2105', 'T', 'w', '3313', '3491', 'K', 'N', '9121', 'q', '9329', '2421', '5953', '7999', 'A', 'I', '4663', 'a', 'v', 'e', 'E', 'Z'], ['A', 'R', 'K', 'P', 1969, 4871, 'W', 5447, 'w', '8469', '2105', 'T', 'w', '3313', '3491', 'K', 'N', '9121', 'q', '9329', '2421', '5953', '7999', 'A', 'I', '4663', 'X', 8781, 'D', 't', 'e', 7067, 'B', 'S', 'A', 8637, 8595]