In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['s', 'K', 'z', 7917, 'O', 2637, 9743, 'M', 7039, 'V', 3521, 'p', 'f', 'O', 'O', '5441', '969', 'I', '8907', 'k', 'n', '1533', '4013', 'B', 'K', 'S', 'B', '9915', 'F', '8473', '5525', '3249', 's', 'T', 981, 1639, 'l'], [9285, 'G', 79, 'R', 'f', 'O', 'O', '5441', '969', 'I', '8907', 'k', 'n', '1533', '4013', 'B', 'K', 'S', 'B', '9915', 'F', '8473', '5525', '3249', 'm', 'I', 2165, 'w', 1745, 's', 9971, 'o', 'o', 595]