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

Ex Input:
[6137, 1795, 'J', 9247, 'r', 'w', 'E', 's', '687', 'N', '8213', '1751', '2567', '5673', 'y', '6821', '6863', '8847', 'z', 's', 'N', 'z', 'J', 7209, 'S'], [3317, 657, 3971, 8789, 4953, 9693, 'O', 7845, 'r', 'w', 'E', 's', '687', 'N', '8213', '1751', '2567', '5673', 'y', '6821', '6863', '8847', 'z', 's', 'N', 'z', 'M', 'A', 'B', 'l']

Ex Output:
r, w, E, s, 687, N, 8213, 1751, 2567, 5673, y, 6821, 6863, 8847, z, s, N, z


Ex Input:
['H', 191, 5269, 'I', 8869, 'N', 9617, 7679, 'C', '9103', '905', 'N', 'n', 'E', '1397', '1061', '4683', 'x', '5823', 'w', 'F', 'i', 'm', 'L', 5561], ['x', 2143, 2583, 'l', 781, 'i', 67, 7861, 'q', 7467, 8599, '9103', '905', 'N', 'n', 'E', '1397', '1061', '4683', 'x', '5823', 'w', 'F', 'y', 'G', 1961, 'V', 'B', 877, 'J', 6495, 3531]

Ex Output:
9103, 905, N, n, E, 1397, 1061, 4683, x, 5823, w, F


Ex Input:
['k', 'l', 3761, 9679, 'Y', 'l', '1953', '7925', '8115', '5243', 'Y', '3939', '1231', 'Q', 'u', 5953, 5571, 'N'], [8981, 8379, 'h', 9701, 759, 'd', '1953', '7925', '8115', '5243', 'Y', '3939', '1231', 'l', 5705, 'P', 4009, 1189]

Ex Output:

1953, 7925, 8115, 5243, Y, 3939, 1231