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:
['l', 8387, '6019', 'r', 't', 'Y'], ['S', 'q', '6019', 'r', 'Z', 9863]

Ex Output:
6019, r


Ex Input:
['h', 4915, '1685', '8731', 'b', 'H', 'T', 'R', 9787], [3379, 'u', '1685', '8731', 'b', 'H', 'T', 'b', 'b', 6567, 3587, 'f']

Ex Output:

1685, 8731, b, H, T


