In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[343, 7413, 'b', '6905', 'o', '6619', '6751', '1987', '4863', '467', '7481', 'z', '9141', 'J', 'o', '5701', '4873', '8907', 'S', '8167', '2037', '9039', 'A', 'r', 'q', '4603', 'Z', '3821', 'x', 'x', 2025, 'a', 'R', 9097, 3623, 'T'], ['U', 4639, 'i', 4499, 2545, 'G', 'c', 6365, 9437, 'y', 'P', 1781, 8983, 'w', 7099, 'X', 'u', 'z', 8535, 'Y', 'H', 'a', 'F', '6905', 'o', '6619', '6751', '1987', '4863', '467', '7481', 'z', '9141', 'J', 'o', '5701', '4873', '8907', 'S', '8167', '2037', '9039', 'A', 'r', 'q', '4603', 'Z', '3821', 'j', 9091, 'd', 'C', 'k', 233, 2181, 'a', 6533, 'W', 'K', 7051, 8999, 'w', 8101, 'U', 8561, 'f', 1913, 'N', 'I', 'u', 'J', 't']