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

[EX Q]: [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 A]: r, w, E, s, 687, N, 8213, 1751, 2567, 5673, y, 6821, 6863, 8847, z, s, N, z

[EX Q]: [4275, 8037, 5099, 'T', 2089, 'E', 5305, 'r', 'k', 9537, '57', 'v', '6257', '5991', '6455', 'a', '9565', '885', 'F', '2219', '2797', '9309', 'J', 'O', 2707, 8633, 8875, 9045, 'q'], [3221, 'f', 3167, '57', 'v', '6257', '5991', '6455', 'a', '9565', '885', 'F', '2219', '2797', '9309', 'J', 'C', 3665, 'm', 6901, 3441, 5601, 6983, 'i', 'z']
[EX A]: 57, v, 6257, 5991, 6455, a, 9565, 885, F, 2219, 2797, 9309, J

[EX Q]: [6507, 8623, 6879, '1327', '6971', 'd', 'A', 3663, 7831], [1711, 4751, 3479, '1327', '6971', 'd', 'u', 1771]
[EX A]:
1327, 6971, d