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

Ex Input:
[6403, 3483, 'Z', 'l', '1385', '5787', '7377', '9385', '1545', '1079', 'C', 'K', 'f', 'O', 'W', '3253', 'Y', '2727', '3679', 'C', '4251', '3803', 'y', 'p', 'H', 'U', 9679, 'k', 'K', 3073, 3011, 'u', 'p', 'N', 2433, 9787, 3981, 363], ['n', 'n', 2201, 4585, 'Z', 'q', 921, 'S', 5417, 'l', '1385', '5787', '7377', '9385', '1545', '1079', 'C', 'K', 'f', 'O', 'W', '3253', 'Y', '2727', '3679', 'C', '4251', '3803', 'y', 'p', 'H', 'u', 'P', 4041, 6681, 'n', 'M', 8035]

Ex Output:
l, 1385, 5787, 7377, 9385, 1545, 1079, C, K, f, O, W, 3253, Y, 2727, 3679, C, 4251, 3803, y, p, H


Ex Input:
['J', 6791, 'x', 'f', 'n', '5565', '4103', 'q', 'n', 'h', '625', '2981', '3243', 'q', '2705', '5505', 's', '4423', 'j', '9819', '3841', 'Z', 'i', 'n', 'R', 9199, 455, 'i'], [4051, 8463, 'i', 6667, 'N', 'k', 'X', 2629, 'I', 'O', 5057, 1059, 4265, 'B', 3819, 'c', 9941, 'R', 'a', 5545, 'x', 'f', 'n', '5565', '4103', 'q', 'n', 'h', '625', '2981', '3243', 'q', '2705', '5505', 's', '4423', 'j', '9819', '3841', 'Z', 'a', 9953, 6229, 'F', 2985]

Ex Output:
x, f, n, 5565, 4103, q, n, h, 625, 2981, 3243, q, 2705, 5505, s, 4423, j, 9819, 3841, Z


Ex Input:
[129, 'x', 'c', 4643, '7887', '4859', '11', 'p', 'D', 'o', 'R', 'T', 'o', 'l', '277', 'q', 'M', 'G', '3077', 'd', 'f', 't', '6361', 'J', 'X', 'b', 'G', 7567, 5885, 'p', 619, 'X', 7519, 'w', 3983, 2397, 'N'], [8857, 5513, '7887', '4859', '11', 'p', 'D', 'o', 'R', 'T', 'o', 'l', '277', 'q', 'M', 'G', '3077', 'd', 'f', 't', '6361', 'J', 'p', 'P', 9855, 5387, 8615, 'N', 'n', 4725, 6489, 7395, 7033, 835, 'y', 7831]

Ex Output:

7887, 4859, 11, p, D, o, R, T, o, l, 277, q, M, G, 3077, d, f, t, 6361, J