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

Ex Input:
['M', 6637, 'd', 'D', 8611, 'U', 'm', 'y', 8085, 'M', 'W', 4845, 'l', 2477, 'f', 'B', 's', 'D', '7597', 'S', '2907', 'o', '1905', 'p', 'S', 'C', 'S', '6403', 'D', 'V', '5265', 'L', 'D', '6031', '2585', '7087', '3941', '573', 'c', 'b', 9083, 9449, 7629, 5633, 3843, 'R', 9421, 2693, 'M', 'b', 3739, 'l', 333], [6017, 'W', 2775, 'W', 4759, 'W', 'q', 'k', 'f', 4299, 5523, 'E', 5391, 'd', 2611, 'l', 5849, 9603, 3831, 'D', '7597', 'S', '2907', 'o', '1905', 'p', 'S', 'C', 'S', '6403', 'D', 'V', '5265', 'L', 'D', '6031', '2585', '7087', '3941', '573', 'o', 4621, 'N', 'c', 'R', 'V', 'p', 'm', 7625, 9815, 'b', 8449]

Ex Output:
D, 7597, S, 2907, o, 1905, p, S, C, S, 6403, D, V, 5265, L, D, 6031, 2585, 7087, 3941, 573


Ex Input:
['w', 'Z', 8573, 'o', 'D', 'J', 5037, 2641, 'O', 'T', '9477', 'u', 'n', 'x', '693', 'o', 'l', '9113', '3117', '3743', '1889', 'G', 'P', 6189, 7671, 5677], ['P', 1411, 'O', 'T', '9477', 'u', 'n', 'x', '693', 'o', 'l', '9113', '3117', '3743', '1889', 'P', 'K', 'l', 'U', 2505, 3803, 9459, 'H', 1427, 1453, 'g']

Ex Output:
O, T, 9477, u, n, x, 693, o, l, 9113, 3117, 3743, 1889


Ex Input:
[7033, 'S', 'A', '5793', 'U', 'W'], [3245, 8119, 'A', '5793', 'u', 'j']

Ex Output:

A, 5793