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

[EX Q]: [6017, 2811, '8157', '9625', 'P', 3629], [7857, 1357, '8157', '9625', 'z', 'z']
[EX A]: 8157, 9625

[EX Q]: ['C', 9451, 'a', 'c', '1879', '7201', 'H', '3431', 'u', 17], ['t', 37, '1879', '7201', 'H', '3431', 'X', 7267, 'Z']
[EX A]: 1879, 7201, H, 3431

[EX Q]: [1271, 2603, 'Z', 'o', 8255, 3199, 7059, 'm', 1539, 9321, '3505', '5411', '9667', 'G', 'F', 'D', '1527', 'C', 'w', '6729', 'W', '3863', '9591', '473', '8633', '2315', '2853', '5321', '707', '535', '933', 'x', 'H', 'b', 'i', 5865, 'M', 'v', 5873, 'M', 2323, 6101, 4815, 'E', 8383, 'Z', 1083, 8243, 's'], ['c', 'e', 7693, 1461, 'c', 'C', 3105, 'a', 's', '3505', '5411', '9667', 'G', 'F', 'D', '1527', 'C', 'w', '6729', 'W', '3863', '9591', '473', '8633', '2315', '2853', '5321', '707', '535', '933', 'x', 'H', 'L', 4341, 965, 'm', 'w', 9709, 'j', 'C', 'c', 3953, 'y', 'Y', 3155, 'E', 3495, 6813, 'P']
[EX A]:
3505, 5411, 9667, G, F, D, 1527, C, w, 6729, W, 3863, 9591, 473, 8633, 2315, 2853, 5321, 707, 535, 933, x, H