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

Ex Input:
['X', 8541, 'z', 'A', '3985', '181', 'k', '6327', '4303', 'Q', '6295', 'i', 'b', 'A', 'h', 'f', '4947', 'N', '4649', 'S', '1957', '2921', '7817', 'i', 'r', 3095, 't', 'i', 5121, 2147, 'O', 4145, 1995, 'E', 'a'], ['g', 'v', 491, 'F', 'Q', 8013, 5789, 6119, 'p', 8193, 'G', 6543, 'n', 'f', 5239, 'z', 'A', '3985', '181', 'k', '6327', '4303', 'Q', '6295', 'i', 'b', 'A', 'h', 'f', '4947', 'N', '4649', 'S', '1957', '2921', '7817', 'i', 'y', 9617, 4351, 'X', 9425, 3497, 6049, 8113]

Ex Output:
z, A, 3985, 181, k, 6327, 4303, Q, 6295, i, b, A, h, f, 4947, N, 4649, S, 1957, 2921, 7817, i


Ex Input:
['L', 'V', 5597, 1661, 'x', 'M', 3901, 'Y', 7525, 'r', 'P', 3031, 'b', 'y', '951', 'E', 'Q', 'n', '5797', '6551', '7545', '523', '6555', '3247', '1875', '5', '2955', 'y', 9635, 9141, 't', 7363, 1359, 'H', 5619], [6813, 7119, 'b', 'y', '951', 'E', 'Q', 'n', '5797', '6551', '7545', '523', '6555', '3247', '1875', '5', '2955', 'w', 2701, 'f', 9769, 6265, 6111, 'n', 5757, 915, 1583, 'N']

Ex Output:
b, y, 951, E, Q, n, 5797, 6551, 7545, 523, 6555, 3247, 1875, 5, 2955


Ex Input:
[4503, 'f', 'a', '4615', 'y', '2509', 'Z', 'S', 'o', '1657', '5399', 'Q', 8269, 3845, 'v', 2193, 'f', 5421, 'Z'], ['Y', 7899, 7111, '4615', 'y', '2509', 'Z', 'S', 'o', '1657', '5399', 'W', 1951, 't', 2523, 1495]

Ex Output:

4615, y, 2509, Z, S, o, 1657, 5399