In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6647, 'T', 69, 8937, 'Z', 'k', 7683, 'z', 6125, 6281, 'Y', 8515, 6833, 'V', 4693, 'P', '9537', 'P', 'g', '25', 'Y', '7665', 's', '2681', '8909', 'g', '4147', '3789', 'k', '7947', '9411', '6959', '1901', '6605', 'C', '5', 't', 'f', '8921', 'T', 'R', 'u', '2305', '1243', 'Q', 2537, 'P', 9077, 7373, 8769, 3403, 6631, 6177, 89, 9695, 8351, 'k', 'v', 'i', 3351, 8943, 't', 'F'], [105, 'R', 'E', 1373, 8775, 'q', 'N', 'x', 7527, 'J', 'z', 'r', 8195, 'F', 4373, 'Q', 'm', 3803, '9537', 'P', 'g', '25', 'Y', '7665', 's', '2681', '8909', 'g', '4147', '3789', 'k', '7947', '9411', '6959', '1901', '6605', 'C', '5', 't', 'f', '8921', 'T', 'R', 'u', '2305', '1243', 'V', 4753, 'F', 'g', 'F', 8923, 'I', 'A', 'v', 'z', 9927, 'd', 2643, 5083, 7117, 'c', 'N', 's', 5073, 'i']