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

Ex Input:
[4385, 'a', 2073, 5621, 'A', 'n', 1919, 1673, 'x', 'v', 'v', 'V', 'h', 'J', '671', '3329', 'b', 'B', 'q', 'f', 'l', '6501', '3425', 'b', '3083', '4541', 'Q', 'p', 'z', 't', 'N', 7057, 'd', 'Y', 'f', 3249, 699, 'x', 1555, 'l', 4749], ['b', 'r', 's', 'v', 'v', 'V', 'h', 'J', '671', '3329', 'b', 'B', 'q', 'f', 'l', '6501', '3425', 'b', '3083', '4541', 'Q', 'p', 'I', 'b', 6909, 'U', 5563, 987]

Ex Output:
v, v, V, h, J, 671, 3329, b, B, q, f, l, 6501, 3425, b, 3083, 4541, Q, p


Ex Input:
['V', 519, 867, 5473, 'n', 6997, 7391, 6371, 5779, 'T', 'L', '8535', '5719', 'q', 'B', 'a', 'E', 'l', 'f', '2919', 'd', 'O', '9587', '2747', '6013', '2123', '5861', 'u', '8197', '7743', 'i', '5239', '1005', '5993', '4027', 'a', 'R', 8701, 555, 3653, 9055, 'l', 9335, 8087, 7439, 'n', 2233, 'L', 683, 'L', 'e', 2673, 5767], [5361, 3329, 867, 'n', 2379, 'S', 4679, 'M', 1831, 'I', 'm', 'E', 'E', 'u', 2107, 'u', 7779, 1113, 't', 2959, 'T', 'L', '8535', '5719', 'q', 'B', 'a', 'E', 'l', 'f', '2919', 'd', 'O', '9587', '2747', '6013', '2123', '5861', 'u', '8197', '7743', 'i', '5239', '1005', '5993', '4027', 'm', 5943, 2765, 9589, 'O', 'B', 'e', 6097, 6003, 1049, 'i']

Ex Output:
T, L, 8535, 5719, q, B, a, E, l, f, 2919, d, O, 9587, 2747, 6013, 2123, 5861, u, 8197, 7743, i, 5239, 1005, 5993, 4027


Ex Input:
['K', 7199, 'b', 2585, 7581, 'X', 6129, 'C', 'h', '1513', 'n', 'Q', 'C', 'D', 'r', 'B', 'M', 'R', '4775', 'l', 847], ['g', 'G', 'r', 849, 2327, 'H', 'u', 'r', 'y', '1513', 'n', 'Q', 'C', 'D', 'r', 'B', 'M', 'R', '4775', 'M', 'l', 'k', 'L', 'r', 'G']

Ex Output:

1513, n, Q, C, D, r, B, M, R, 4775