instruction:
In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
question:
[621, 7677, 'b', '889', '6721', 'H', 'd', 'S'], [8151, 'F', 'b', '889', '6721', 'h', 4123]
answer:
b, 889, 6721


question:
[4693, 'L', 7881, 9637, 'y', 's', 1851, '7315', 'i', 'I', '9393', '79', '279', '4549', '7217', '897', '2329', '5301', '3337', '9273', 'Z', 'a', 5545, 6795], ['t', 'W', 4149, 'h', 'M', 'A', 4569, 2677, '7315', 'i', 'I', '9393', '79', '279', '4549', '7217', '897', '2329', '5301', '3337', '9273', 'r', 2423, 6015, 3755, 6699, 'p', 39, 'h', 'b']
answer:
7315, i, I, 9393, 79, 279, 4549, 7217, 897, 2329, 5301, 3337, 9273


question:
['I', 7991, 's', '4825', 'y', 'i'], ['R', 'j', 's', '4825', 'b', 9835]
answer:

s, 4825