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

Ex Input:
[6211, 8013, 7837, 3385, 'z', 7301, 'D', 'Y', 'Q', 'Y', 'W', '473', '9037', 'K', 'V', '7669', 'R', '6605', 'I', 'k', 5831], ['A', 'N', 'I', 4579, 'R', 'P', 4559, 3977, 'Y', 'W', '473', '9037', 'K', 'V', '7669', 'R', '6605', 'D', 7909, 'x']

Ex Output:
Y, W, 473, 9037, K, V, 7669, R, 6605


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:
['n', 'v', 'F', 7539, 8335, 'A', 'c', 6467, '2381', 'W', '1909', 'j', '6603', 'y', 'D', '9471', 'Z', '323', 'g', '8755', '5375', 'K', 'O', 2555, 5697, 7913, 1887, 8081], [6027, 7073, '2381', 'W', '1909', 'j', '6603', 'y', 'D', '9471', 'Z', '323', 'g', '8755', '5375', 'K', 'C', 's', 'p', 6913, 't', 'S', 6797, 'k', 8403, 3213]

Ex Output:

2381, W, 1909, j, 6603, y, D, 9471, Z, 323, g, 8755, 5375, K