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

[EX Q]: [2255, 4205, 'U', '7567', 'k', 5167], ['Q', 9439, 'U', '7567', 'H', 1307]
[EX A]: U, 7567

[EX Q]: ['z', 'L', 'e', 3279, 's', 'U', 'p', '2885', 'w', 'x', 7713], [3907, 'e', 's', 'U', 'p', '2885', 'w', 'F', 'x', 'v', 5319]
[EX A]: s, U, p, 2885, w

[EX Q]: [457, 'V', 'I', 'p', 'u', 'v', 'O', '3027', 'F', '5415', 'c', '7999', 'F', '6427', 'd', 'a', 5007, 3107, 8869, 9113], ['P', 2761, 5201, 7327, 'H', 6099, '3027', 'F', '5415', 'c', '7999', 'F', '6427', 'u', 6417]
[EX A]:
3027, F, 5415, c, 7999, F, 6427