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

Ex Input:
[1527, 6311, 8927, 8605, 'v', '3541', 'b', '9641', '1093', '2649', 'H', '3821', '4251', 'K', 'L', 'J', '5301', '9463', 'z', '1403', 'O', 2283, 'g', 5991, 'B', 'n', 3997, 'G', 8425, 5409, 4395], ['P', 9991, 8325, 'b', 'u', 'v', '3541', 'b', '9641', '1093', '2649', 'H', '3821', '4251', 'K', 'L', 'J', '5301', '9463', 'z', '1403', 'J', 6627, 4667, 4387, 881, 8195, 'G']

Ex Output:
v, 3541, b, 9641, 1093, 2649, H, 3821, 4251, K, L, J, 5301, 9463, z, 1403


Ex Input:
[3277, 9365, 4973, 'q', 'S', 6337, 3661, 'Q', 'J', 'c', '3205', '2707', '1869', '1285', 'z', 'c', 'l', 'w', 5939, 6533, 'h', 1877, 10017, 'q'], ['L', 8235, 'n', 'Q', 'J', 'c', '3205', '2707', '1869', '1285', 'z', 'c', 'O', 1591, 'C', 2553, 2613, 'E', 3577, 'u']

Ex Output:
Q, J, c, 3205, 2707, 1869, 1285, z, c


Ex Input:
[6259, 'Z', 'F', 'p', 4141, 8619, 5081, 'M', 'u', '6907', 'd', '8277', '1607', '6499', '7843', '6585', '745', '1241', 'e', 'M', '2411', '4405', 'Z', '2001', 'u', '2549', 'n', '5747', 'k', 383, 4735, 1257, 'G', 2035, 969, 'W', 1233], ['J', 7665, 3385, 'q', 'j', 'c', 5307, 2957, 'M', 'q', 2031, 9331, 'S', 'z', 4151, 6277, 't', 'M', 'u', '6907', 'd', '8277', '1607', '6499', '7843', '6585', '745', '1241', 'e', 'M', '2411', '4405', 'Z', '2001', 'u', '2549', 'n', '5747', 'j', 'b', 'I']

Ex Output:

M, u, 6907, d, 8277, 1607, 6499, 7843, 6585, 745, 1241, e, M, 2411, 4405, Z, 2001, u, 2549, n, 5747