In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3323, 'K', 4869, 6419, 5439, 7951, 'r', 5449, 7009, 1051, 'j', 'F', 9867, 9579, 383, 'E', 'f', 'W', '1993', 'C', '3763', 'J', 'U', '2381', '1519', '379', 'x', '7941', '1935', 'y', 'A', 'Z', '2361', 'Q', 'N', '3657', 'z', 'u', '6575', 'M', 'M', 'q', '6401', 't', 7425, 'g', 's', 'z', 8153, 'r', 9941, 'd', 'B', 'h', 'W', 'h', 'L', 5187, 8169, 't', 4779, 8005, 'x'], ['f', 7987, 4393, 'v', 'Q', 'J', 'O', 'I', 9057, 'y', 'I', 'V', 'o', 'f', 'E', 9869, 6321, 1755, 'a', 'v', 'g', 8941, 'W', '1993', 'C', '3763', 'J', 'U', '2381', '1519', '379', 'x', '7941', '1935', 'y', 'A', 'Z', '2361', 'Q', 'N', '3657', 'z', 'u', '6575', 'M', 'M', 'q', '6401', 'Z', 405, 7397, 'H', 9051, 'R', 'V', 'L', 'n', 'd', 's', 'i', 5893, 'C']