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

Ex Input:
[2647, 'D', 'q', 'P', 6067, 3591, 1081, 'T', 2835, 5797, 7213, 7679, 'W', 4661, 7889, 9677, 3313, 7233, 9121, 2061, 'v', 'u', '325', '8069', '4691', '9597', 'O', '8811', '6583', 'M', '4393', '1767', 'v', '2707', '4419', 'Q', 'a', '3885', '1795', '9599', 'a', 547, 657, 5609], ['o', 8055, 'b', 345, 'k', 1237, 'R', 'M', 2177, 'V', 3921, 'k', 'o', 'z', 7451, 27, 'F', 8073, 'v', 'u', '325', '8069', '4691', '9597', 'O', '8811', '6583', 'M', '4393', '1767', 'v', '2707', '4419', 'Q', 'a', '3885', '1795', '9599', 'e', 9767, 1391, 'Q']

Ex Output:
v, u, 325, 8069, 4691, 9597, O, 8811, 6583, M, 4393, 1767, v, 2707, 4419, Q, a, 3885, 1795, 9599


Ex Input:
[3937, 'R', 'H', '3517', '1845', 'Y', '8999', '7003', '6677', '8517', 'k', 'W', '5321', '5817', 's', '271', '4109', 'o', 5471, 's', 8751, 2307, 4959, 2645, 7227, 3355, 'Z', 'c', 'D', 1155, 'W', 'T'], ['V', 'B', 'z', 2111, 'H', '3517', '1845', 'Y', '8999', '7003', '6677', '8517', 'k', 'W', '5321', '5817', 's', '271', '4109', 'b', 8675, 9843, 'v', 'n']

Ex Output:
H, 3517, 1845, Y, 8999, 7003, 6677, 8517, k, W, 5321, 5817, s, 271, 4109


Ex Input:
[633, 4875, 'W', '9573', 'B', 'd', 'S', 'A', 'v', '1861', 'g', '6215', '4367', 'B', '7991', '6645', 'f', 4699, 'A', 4739, 'E', 'X', 'i', 'u', 'Z', 'W', 6891, 'T', 5833], ['f', 9515, 'L', 'N', 'T', 'A', 'g', 9339, 6073, 'W', '9573', 'B', 'd', 'S', 'A', 'v', '1861', 'g', '6215', '4367', 'B', '7991', '6645', 'e', 6443, 'O', 'E', 7387, 9285, 'f', 'K', 'h', 'L', 'g', 'Y', 1663]

Ex Output:

W, 9573, B, d, S, A, v, 1861, g, 6215, 4367, B, 7991, 6645