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

[EX Q]: [621, 7677, 'b', '889', '6721', 'H', 'd', 'S'], [8151, 'F', 'b', '889', '6721', 'h', 4123]
[EX A]: b, 889, 6721

[EX Q]: [395, 'n', 'w', 2771, 'E', 'b', 't', 3169, 1467, 'U', 3777, 'E', 'v', 7179, 6343, 7867, 1145, 6015, 'z', 'b', 'n', 681, 6517, 'c', 'z', 2275, 3123, 'Q', 'q', 'm', 'A', '3931', '6189', 'Y', '5423', '2865', 'y', '9783', 'R', '7107', 'i', '1257', 'C', '6923', 'F', 'E', '2937', 'c', 'Y', 'j', '5731', 'P', 'L', 'M', '65', 's', 'I', 'W', 5819, 'E', 8891, 'v', 'x', 1871, 'd', 1279, 7007], ['b', 'K', 4685, 9075, 3699, 3283, 3619, 4061, 't', 1445, 'Y', 'a', 'p', 'm', 5807, 7723, 'X', 'R', 'u', 'j', 6005, 6139, 4653, 283, 4471, 'Z', 'n', 5021, 1519, 'Q', 'q', 'm', 'A', '3931', '6189', 'Y', '5423', '2865', 'y', '9783', 'R', '7107', 'i', '1257', 'C', '6923', 'F', 'E', '2937', 'c', 'Y', 'j', '5731', 'P', 'L', 'M', '65', 's', 'n', 7877, 4097, 'o', 'N', 7407, 'T', 'O', 6965, 8331, 'i', 5451, 'N', 'p', 'r', 7669, 8539, 'h', 'U', 8731, 4935]
[EX A]: Q, q, m, A, 3931, 6189, Y, 5423, 2865, y, 9783, R, 7107, i, 1257, C, 6923, F, E, 2937, c, Y, j, 5731, P, L, M, 65, s

[EX Q]: ['U', 3417, 5169, 'r', 's', 2909, 3363, 'x', 8463, 9703, 3041, 'e', 4997, 1689, 'Y', 'y', 'T', '53', '8895', '1117', '4025', 'v', '1689', 'e', 'V', 'k', '2673', '5425', 'c', 'p', '8235', 'Q', 'G', 2185, 'I', 'D', 'U', 2889, 6837, 'B', 'x', 2775, 'I', 3053, 1801], [525, 'd', 'K', 'T', '53', '8895', '1117', '4025', 'v', '1689', 'e', 'V', 'k', '2673', '5425', 'c', 'p', '8235', 'Q', 'z', 9959, 'H', 1865, 'M', 8529]
[EX A]:
T, 53, 8895, 1117, 4025, v, 1689, e, V, k, 2673, 5425, c, p, 8235, Q