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

['J', 'G', 'h', 'z', '6979', 'W', 'W', '7681', 's', '8827', 'm', 't', 'z', 9681, 'z'], ['Q', 4625, 4609, 2245, 'h', 'z', '6979', 'W', 'W', '7681', 's', '8827', 'A', 9751, 'U', 7397]
h, z, 6979, W, W, 7681, s, 8827

[4817, 'A', '3155', 'W', 'm', 4061], [7701, 'P', '3155', 'W', 't', 'J']
3155, W

['x', 4415, 'r', 'E', '3669', 'H', 'z', 'q', 3275], [3741, 'Z', 'H', 9579, 'K', 'r', 'E', '3669', 'H', 'z', 'Q', 4767, 2539, 'T', 'b']

r, E, 3669, H, z