In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2465, 'R', 1443, 8521, 4131, 'w', 'R', 's', 'R', 4339, 'G', 7845, 'k', 'f', 9921, 'o', 'W', 'Y', 'a', 'S', 'N', 'S', 'B', 'K', 'U', 'z', '71', '5799', 'h', '2293', '1103', 's', 'c', 'P', 'G', 'N', 'A', 'F', 'K', '7221', '1507', 'q', 'q', 'p'], ['r', 513, 2395, 6659, 81, 2251, 2035, 1449, 's', 5523, 'k', 'K', 'q', 'o', 'N', 3309, 9529, 'o', 3715, 'S', 9041, 'L', 'j', 'Y', 'a', 'S', 'N', 'S', 'B', 'K', 'U', 'z', '71', '5799', 'h', '2293', '1103', 's', 'c', 'P', 'G', 'N', 'A', 'F', 'K', '7221', '1507', 'q', 'b', 'R', 'b', 'O', 'I', 'f']