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

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


[Q]: ['o', 'k', '8037', '2095', 'E', 'l'], [4673, 'J', '8037', '2095', 't', 'F']
[A]: 8037, 2095


[Q]: ['N', 6797, 753, 'K', 'R', 1073, 'B', 3481, 9491, '2763', '237', 'm', '639', 'V', 'I', '601', 'f', 'o', 'd', '1831', 'l', 'g', 7891, 7313, 'K', 't', 7743, 3025, 4711, 6783], [3817, 'G', 'J', 9537, '2763', '237', 'm', '639', 'V', 'I', '601', 'f', 'o', 'd', '1831', 'W', 7953, 3579, 9327, 3059, 9417, 'H']
[A]:
2763, 237, m, 639, V, I, 601, f, o, d, 1831