In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4655, 641, 3115, 1995, 'n', 1581, 'j', '2947', '7627', '6907', '2117', '3341', '1933', '8041', 'e', 'Y', '3297', '1873', '4647', '5855', 'P', '1171', 'Z', 'r', 'J', 'M', '7737', '7157', 'v', '6361', '3421', '5287', 'Q', 9795, 2453, 'w', 'T', 'k', 'h', 'T', 'h', 8929], [7159, 9617, 1611, 'u', 'C', 'b', 'U', 'h', 'A', 2959, 7183, 8905, 'e', 'g', 309, 981, 7909, 7221, 'l', 1365, 2207, 'q', 'Z', 1613, 'v', 'j', '2947', '7627', '6907', '2117', '3341', '1933', '8041', 'e', 'Y', '3297', '1873', '4647', '5855', 'P', '1171', 'Z', 'r', 'J', 'M', '7737', '7157', 'v', '6361', '3421', '5287', 'R', 5869, 4829, 4883, 'J', 'J', 'A', 7047, 'Y']