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

Ex Input:
[4665, 'U', 1617, 4891, 3015, 'k', '9381', '4077', 'f', 'T', 'G', 'z', '9879', 'q', 'f', 'g', 'G', '8765', 'D', '1755', 'B', 'H', 'y', 6819, 9689, 4667, 6651, 'Z', 4359, 3239, 'k'], [4575, 7833, 7267, 't', 'C', 'k', '9381', '4077', 'f', 'T', 'G', 'z', '9879', 'q', 'f', 'g', 'G', '8765', 'D', '1755', 'v', 4883, 'l', 3055]

Ex Output:
k, 9381, 4077, f, T, G, z, 9879, q, f, g, G, 8765, D, 1755

Ex Input:
[7615, 3985, 'o', 1073, 5157, 5347, '7031', '7637', '6703', '7735', '8445', '9373', 'f', 'x'], [1247, 'x', 5707, 3649, 'g', 'z', '7031', '7637', '6703', '7735', '8445', '9373', 'h', 6317, 'T', 'M', 5703, 'h']

Ex Output:
7031, 7637, 6703, 7735, 8445, 9373

Ex Input:
['H', 'x', 1845, 'E', 6301, 'I', 'u', 3889, '9839', 'X', 'b', 'g', '3117', 'F', '7211', 'T', 'X', '5329', '4821', 'j', 5467, 2581], [7363, 'f', 481, 'n', 'O', 'k', 1761, 'c', 'm', '9839', 'X', 'b', 'g', '3117', 'F', '7211', 'T', 'X', '5329', '4821', 'i', 1457, 1067, 7005, 6445, 2175, 1721]

Ex Output:
9839, X, b, g, 3117, F, 7211, T, X, 5329, 4821