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

[9673, 'V', 'q', 8183, 4703, '9707', 'Y', '7685', 'o', 'b', 'a', 'g', 'R', '551', 'W', 'Q', 1263, 'd', 'S'], [3777, 'a', 't', 'b', 'P', 'L', 3443, 6611, 1651, 'G', '9707', 'Y', '7685', 'o', 'b', 'a', 'g', 'R', '551', 'W', 'E', 'y', 'U']
9707, Y, 7685, o, b, a, g, R, 551, W

[605, 'W', 7189, 'X', '7897', '5823', 'P', '9001', 'J', 'r', 2595], ['z', 'W', '7897', '5823', 'P', '9001', 'J', 'Z', 'w']
7897, 5823, P, 9001, J

[2451, 7207, 'd', 4501, 'U', 10001, 'L', 3181, 3773, 'g', 'a', 9065, '1997', '9651', 'Q', 'M', '8409', 'U', '3979', '7771', 'Y', '8613', 'n', '9371', 'r', 5473, 'C', 7451, 8895, 9239, 841, 'f', 9631, 7153, 4867], ['h', 3023, 'p', '1997', '9651', 'Q', 'M', '8409', 'U', '3979', '7771', 'Y', '8613', 'n', '9371', 'q', 8857, 8221, 'm', 'G', 2479]

1997, 9651, Q, M, 8409, U, 3979, 7771, Y, 8613, n, 9371