instruction:
In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
question:
[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']
answer:
9707, Y, 7685, o, b, a, g, R, 551, W

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

question:
['x', 'I', 8777, 7925, 'Q', 'q', 9079, 7261, 'N', 'g', 3893, 1063, 379, 507, 'O', '5791', 'A', '1229', '795', '9375', '8827', '949', 'I', 'I', 'b', 'n', 'r', '8257', 'e', 'C', 9161], ['Y', 569, 'a', 'O', '5791', 'A', '1229', '795', '9375', '8827', '949', 'I', 'I', 'b', 'n', 'r', '8257', 'f', 7103, 6811, 6923, 6101, 'v', 'R']
answer:
O, 5791, A, 1229, 795, 9375, 8827, 949, I, I, b, n, r, 8257