In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7911, 'G', 1721, 9709, 9881, 'J', 'T', 'T', 5159, 'S', 't', 'E', 's', 3871, 'm', 'J', 'y', 4161, 5865, 307, 'F', '4311', 'C', 'y', 'l', '891', '4849', '4739', 'P', 'F', 'q', '9093', 'w', 'W', 'L', 'O', 'N', '4285', 'A', 'U', 'Z', '5931', 'U', 4497, 3255, 'b', 5635, 2713, 4969, 'w', 9431, 'A', 2237], ['b', 'G', 'd', 9109, 'x', '4311', 'C', 'y', 'l', '891', '4849', '4739', 'P', 'F', 'q', '9093', 'w', 'W', 'L', 'O', 'N', '4285', 'A', 'U', 'Z', '5931', 'g', 1059]