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

[EX Q]: ['l', 8387, '6019', 'r', 't', 'Y'], ['S', 'q', '6019', 'r', 'Z', 9863]
[EX A]: 6019, r

[EX Q]: ['E', 'P', 'Z', '8337', 'L', '4245', 'M', 'M', 'H', '4531', 'B', 'p', '6961', 'x', 9461, 2587], [9027, 289, 2515, 'k', 'N', 'i', 9689, '8337', 'L', '4245', 'M', 'M', 'H', '4531', 'B', 'p', '6961', 'r', 'x', 737, 'a', 'w', 'K', 'S']
[EX A]: 8337, L, 4245, M, M, H, 4531, B, p, 6961

[EX Q]: [2803, 'l', 8379, 'r', 'b', 2363, 'P', 'K', 's', 3999, 't', 167, 'N', '9089', '4973', '7373', '8759', 'W', 'r', '6259', '9427', 'c', 'Q', '2311', '5829', 'O', '7913', '1539', 'r', 'e', 'd', '9025', 'M', 7681, 'e', 'm', 'a', 1365, 'm', 'm', 'v', 'P', 'M', 3649, 7257, 'q', 9843, 831, 'U', 'b'], ['A', 'm', 9121, 'h', 'p', 'k', 'P', 4077, 'd', 3595, 1689, 'D', 'C', 'l', 'I', 'Y', 'N', '9089', '4973', '7373', '8759', 'W', 'r', '6259', '9427', 'c', 'Q', '2311', '5829', 'O', '7913', '1539', 'r', 'e', 'd', '9025', 'K', 2849, 'i', 'K', 'N', 'u', 1811, 967, 2799, 'u', 'C', 637, 1911, 6151, 'L']
[EX A]:
N, 9089, 4973, 7373, 8759, W, r, 6259, 9427, c, Q, 2311, 5829, O, 7913, 1539, r, e, d, 9025