In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7241, 'D', 461, 'y', 'e', 4205, 8159, 9591, 'L', 'a', 5163, 'A', 'u', 911, 6645, 5287, 'h', 2937, 2197, 'c', 9019, 'B', 'l', 2217, 'b', 'c', 'r', 'h', '6479', 'z', 'p', '4827', '73', 'c', 'e', '9015', '5361', '3943', 'N', 'l', '1503', 'W', 't', '4975', 'H', 'Q', '7919', '8765', 'g', '4513', '6269', '2379', '3231', 'F', 'C', 'I', 'u', 'P', 1183, 'B', 5025, 891, 935, 5855, 8251, 1125, 'G', 'i', 'b', 2117], ['B', 1045, 5861, 'd', 'N', '6479', 'z', 'p', '4827', '73', 'c', 'e', '9015', '5361', '3943', 'N', 'l', '1503', 'W', 't', '4975', 'H', 'Q', '7919', '8765', 'g', '4513', '6269', '2379', '3231', 'F', 'C', 'I', 'u', 'h', 1263, 'o', 3121, 'J']