In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.

[EX Q]: [1249, 4091, 'E', 483, 'O', 8427, '5009', 'X', 'Q', '107', 'F', '6119', '4479', 'u', 'o', 'U', '4405', '1737', 'K', 'j', 'B', 'U', 2857, 's'], ['J', 'B', 8825, 9581, '5009', 'X', 'Q', '107', 'F', '6119', '4479', 'u', 'o', 'U', '4405', '1737', 'K', 'j', 'B', 'E', 'e', 'R', 'X', 1739, 'D', 1385, 'e', 6969]
[EX A]: 5009, X, Q, 107, F, 6119, 4479, u, o, U, 4405, 1737, K, j, B

[EX Q]: ['n', 'E', '2891', '7537', 'Q', 'J'], [2247, 10017, '2891', '7537', 'e', 1001]
[EX A]: 2891, 7537

[EX Q]: [429, 'W', 6609, 3011, 8879, 'L', 8071, '6913', '31', 'D', '8045', '4777', 'i', 'Q', '1493', 'H', 1929], [2983, 7999, '6913', '31', 'D', '8045', '4777', 'i', 'Q', '1493', 'l', 'B', 'C', 1215, 'X', 1911, 'H', 'X']
[EX A]:
6913, 31, D, 8045, 4777, i, Q, 1493