In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
--------
Question: [2255, 4205, 'U', '7567', 'k', 5167], ['Q', 9439, 'U', '7567', 'H', 1307]

Answer: U, 7567


Question: ['X', 4261, 'm', 7859, 4443, 287, 7605, 'X', 'z', 6017, 2097, 2447, 8915, 4657, 375, 81, 'I', 'C', 'T', 7455, 7461, 'W', 'e', 'n', 'O', '1627', '5687', '421', '1005', '2703', '2689', '2227', '6679', '5031', 'y', 'n', '2949', 'j', '7753', '1135', 'A', 't', 'b', 'x', 'B', 'D', 2439, 'Q', 'l', 'D', 3245], ['J', 'o', 3361, 8709, 8719, 'e', 'n', 'O', '1627', '5687', '421', '1005', '2703', '2689', '2227', '6679', '5031', 'y', 'n', '2949', 'j', '7753', '1135', 'A', 't', 'b', 'x', 'B', 'g', 'r', 4351, 'F', 2243, 8191, 5111, 6683, 'Y', 3647, 't', 'f', 2885, 5435, 7467, 'S', 9159, 8145, 'H', 'z']

Answer: e, n, O, 1627, 5687, 421, 1005, 2703, 2689, 2227, 6679, 5031, y, n, 2949, j, 7753, 1135, A, t, b, x, B


Question: [3323, 'G', 'k', 9183, 't', 9885, 3767, 'D', 'u', 'C', 'O', '9231', 's', 'd', '3497', '6063', 'Z', 'S', '2799', 'u', '2777', '8507', 'G', 'j', 'z', 'B', 'F', 't', '5527', '8931', 'r', '10029', '7305', 'H', 't', 7899, 'F'], ['h', 'E', 4401, 'C', 1267, 1175, 2939, 'g', 'n', 'm', 'u', 'C', 'O', '9231', 's', 'd', '3497', '6063', 'Z', 'S', '2799', 'u', '2777', '8507', 'G', 'j', 'z', 'B', 'F', 't', '5527', '8931', 'r', '10029', '7305', 'H', 'q', 4957, 6929, 6135, 'M', 1875, 4101, 'L', 9477, 'Q', 'Z', 1039, 'A', 4355, 'l', 'w', 's', 4485, 'L', 6895, 753, 'm', 1205, 'V', 821, 8801]

Answer:
u, C, O, 9231, s, d, 3497, 6063, Z, S, 2799, u, 2777, 8507, G, j, z, B, F, t, 5527, 8931, r, 10029, 7305, H