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

[EX Q]: [4961, 'H', 9957, 'w', 'K', 'Y', 3375, 'S', '3191', '4439', 'C', '1965', '2787', '4507', 'y', 2753, 2989, 6093, 7091, 8043, 'c'], [9279, 'S', 6127, 5845, 237, 'S', '3191', '4439', 'C', '1965', '2787', '4507', 'w', 9497, 'K', 2297]
[EX A]: S, 3191, 4439, C, 1965, 2787, 4507

[EX Q]: ['U', 2021, 9935, '873', 'T', '9883', 'y', 8789, 'v'], ['g', 7321, '873', 'T', '9883', 'p', 9721]
[EX A]: 873, T, 9883

[EX Q]: ['s', 2787, 's', 'U', 9379, 'h', 8745, 675, 'F', 'd', 4801, 'Z', 'P', 'l', 8181, 9045, '2181', 'R', '8109', '8609', '3601', '3631', '689', '2901', '9057', '9229', 'm', '4461', '2423', '3795', '7315', 'k', 'h', '6673', '2745', '213', 'o', 'A', 2127, 4597, 'T', 3089, 'c', 9947, 'e', 'G', 'a', 'D', 'c', 477, 2097, 9665], ['R', 'S', 737, 'F', 3405, 835, 'B', 6895, '2181', 'R', '8109', '8609', '3601', '3631', '689', '2901', '9057', '9229', 'm', '4461', '2423', '3795', '7315', 'k', 'h', '6673', '2745', '213', 'L', 5393, 8897, 'q', 5969, 7633, 2055]
[EX A]:
2181, R, 8109, 8609, 3601, 3631, 689, 2901, 9057, 9229, m, 4461, 2423, 3795, 7315, k, h, 6673, 2745, 213