In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['Z', 'U', 3799, 'j', 9667, 3319, 3523, 'h', 'C', 'o', 1689, 'r', 'k', '5987', 'c', 't', '9683', 'm', 'H', 'D', 'O', 'P', '9571', 'H', '1811', 'w', 'l', '2647', 'V', '7367', 'Y', '3045', 'y', '6841', 'S', 'A', '6673', 'v', 'A', 'h', 'o', 'S'], ['A', 8039, 5323, 'b', 5145, 4199, 7925, 6361, 'p', 751, 'x', 'H', 'p', 'I', 2173, 6769, 9391, 'p', '5987', 'c', 't', '9683', 'm', 'H', 'D', 'O', 'P', '9571', 'H', '1811', 'w', 'l', '2647', 'V', '7367', 'Y', '3045', 'y', '6841', 'S', 'A', '6673', 'v', 'A', 'h', 'B', 637, 1997, 6671, 't', 'e', 'J', 'F', 'j']