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

[EX Q]: ['g', 305, '8447', 'K', 'y', 'D'], [2445, 5519, '8447', 'K', 't', 'l']
[EX A]: 8447, K

[EX Q]: ['t', 'W', 'i', 't', 4163, 'd', 'k', 'Y', 'V', '5149', '6959', '6843', '7821', '6533', 'g', '6879', 'T', 6267, 5627, 'u', 'g', 'F', 3861], ['f', 'g', 'N', 'I', 'C', 4633, 'Y', 'V', '5149', '6959', '6843', '7821', '6533', 'g', '6879', 'A', 'K', 1819, 3343, 8603, 'h', 1751, 'h']
[EX A]: Y, V, 5149, 6959, 6843, 7821, 6533, g, 6879

[EX Q]: ['i', 8549, 'h', 'd', '5915', '3671', '8841', 'n', 'l', '2933', 'l', '3719', 'w', 'r', 4949, 6965, 9729, 'q', 2999, 3943], [3137, 6813, 't', 'h', 'd', '5915', '3671', '8841', 'n', 'l', '2933', 'l', '3719', 'x', 2121]
[EX A]:
h, d, 5915, 3671, 8841, n, l, 2933, l, 3719