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

Ex Input:
[1071, 'w', 3571, 'c', 3877, 't', 'H', 'U', 'C', 'Q', 'v', 'd', '9421', '3707', 'q', 'M', 'u', '7171', '8005', '9897', '4473', '6865', 'e', '4241', 'f', '9249', 'v', 'c', '6077', '1825', 'P', 'X', 'p', '5845', 'a', '7535', 'T', '2813', 'r', 'v', 10031, 'i', 'G', 't', 'K', 'c', 9299, 's', 6373], ['Z', 6069, 8247, 609, '9421', '3707', 'q', 'M', 'u', '7171', '8005', '9897', '4473', '6865', 'e', '4241', 'f', '9249', 'v', 'c', '6077', '1825', 'P', 'X', 'p', '5845', 'a', '7535', 'T', '2813', 'I', 'e', 'O', 1707, 7143, 'w', 'P', 'E', 7629, 6069, 'k', 3493, 'd', 'k', 4167, 'z', 3513, 'Y', 'g', 'K', 8501, 'n', 'Q', 6091]

Ex Output:
9421, 3707, q, M, u, 7171, 8005, 9897, 4473, 6865, e, 4241, f, 9249, v, c, 6077, 1825, P, X, p, 5845, a, 7535, T, 2813


Ex Input:
[9575, 'B', 2013, 'J', 'e', 7839, 1517, 1505, 'T', 1109, 5639, 'o', '4409', 'L', '9207', '2481', 'W', '5287', 'h', 'b', 'h', 'T', 'g', 'k', '5867', 'p', '3705', '1257', '4107', '3389', 'a', 'r', 'j', 3455, 4281, 7515, 2685, 617, 'M', 'f', 1943, 2675, 'L', 'U'], [1429, 2865, 'Y', 745, '4409', 'L', '9207', '2481', 'W', '5287', 'h', 'b', 'h', 'T', 'g', 'k', '5867', 'p', '3705', '1257', '4107', '3389', 'a', 'r', 'F', 'r', 'w', 3275, 'x', 'y', 'R', 'N', 'P', 4961, 'm', 'v', 'L', 'g', 'B']

Ex Output:
4409, L, 9207, 2481, W, 5287, h, b, h, T, g, k, 5867, p, 3705, 1257, 4107, 3389, a, r


Ex Input:
[9639, 3119, 8145, 4687, 'N', 'W', 'A', 'l', 's', 2579, 'a', 'B', 'v', 2737, 1865, 2575, 'A', '2851', 'X', '2517', 'I', 'U', 'P', 'W', 'I', '8261', 'H', '4889', 't', '6467', '2853', 'c', '2377', 'o', 'G', 'B', 'K', 1107, 3403, 6471], [3049, 'o', 'W', 'j', 'u', 7231, 2155, 3067, 7441, 'A', '2851', 'X', '2517', 'I', 'U', 'P', 'W', 'I', '8261', 'H', '4889', 't', '6467', '2853', 'c', '2377', 'o', 'G', 'h', 'x']

Ex Output:

A, 2851, X, 2517, I, U, P, W, I, 8261, H, 4889, t, 6467, 2853, c, 2377, o, G