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

Ex Input:
['i', 'n', '7509', '7241', 'V', 'k', 205, 'H'], ['s', 4349, 7023, '7509', '7241', 'V', 'O', 't', 9237]

Ex Output:
7509, 7241, V


Ex Input:
['M', 'u', 'N', 'y', 295, 3475, 9835, 'H', 4717, 1403, 'Y', 9997, 8009, 'g', 'p', '5225', '6819', '2091', '2855', '3637', '2009', 'v', 'c', 'r', '8173', 'H', 'o', 'N', 'F', '1483', 'w', 3597, 1163, 5869], ['v', 9877, 'x', 5367, 4285, 'B', 4389, 3125, 'J', 'u', 2261, 8063, 'W', 'l', 'I', 'y', 9779, 'g', 'p', '5225', '6819', '2091', '2855', '3637', '2009', 'v', 'c', 'r', '8173', 'H', 'o', 'N', 'F', '1483', 'P', 5999, 'u', 2261, 'd', 'n', 'N', 9087, 'P']

Ex Output:
g, p, 5225, 6819, 2091, 2855, 3637, 2009, v, c, r, 8173, H, o, N, F, 1483


Ex Input:
[5279, 8567, 8439, 177, 'y', 'V', 'P', 'C', 'U', '2547', 'a', 's', 'G', 6657, 4861, 'V'], ['p', 5151, 'V', 'P', 'C', 'U', '2547', 'a', 's', 'N', 't', 2557, 'g', 6957, 'f']

Ex Output:

V, P, C, U, 2547, a, s