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

['g', 305, '8447', 'K', 'y', 'D'], [2445, 5519, '8447', 'K', 't', 'l']
8447, K

['x', 9249, 'X', 'o', '7637', 'q', 'S', '733', '1483', 'T', '7653', 'F', '7879', 'k', '1881', 'Q', 'J', '4517', 'n', 'q', '1919', '381', '4725', 'J', 10001, 'A', 225, 1607, 'a', 'h', 6377], [375, 'D', 4093, 'g', 735, 955, 'c', 9937, 2987, 7035, 'X', 7703, 9937, 'Y', 3849, 2197, 4731, 'X', 'o', '7637', 'q', 'S', '733', '1483', 'T', '7653', 'F', '7879', 'k', '1881', 'Q', 'J', '4517', 'n', 'q', '1919', '381', '4725', 'Y', 'K', 's', 1667, 9723, 3697, 1759, 3243, 'r', 'v', 'Z']
X, o, 7637, q, S, 733, 1483, T, 7653, F, 7879, k, 1881, Q, J, 4517, n, q, 1919, 381, 4725

[2459, 'T', '8399', 'e', '6657', 'y', 'L', '4563', 'Q', '1745', '3125', 'X', '6805', '9043', '1777', 'I', 'G', 6625], ['m', 's', 'H', 2205, 3563, '8399', 'e', '6657', 'y', 'L', '4563', 'Q', '1745', '3125', 'X', '6805', '9043', '1777', 'Z', 3717]

8399, e, 6657, y, L, 4563, Q, 1745, 3125, X, 6805, 9043, 1777