In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['s', 'd', 'C', 5737, 3731, 3221, 'G', 'd', 8643, 'Y', 8867, 1013, 'I', 'v', 'n', '5429', '4189', 'r', '9689', '6357', 'i', 'o', 'I', '3305', 'W', 'o', 'O', 'S', 'W', 'P', '241', 'Q', 'n', '6113', '5161', '6701', 'i', 'n', 'q', 'q', 'C', 'U'], [5533, 6171, 'X', 6473, 8949, 3427, 'o', 'V', 'R', 'v', 'n', '5429', '4189', 'r', '9689', '6357', 'i', 'o', 'I', '3305', 'W', 'o', 'O', 'S', 'W', 'P', '241', 'Q', 'n', '6113', '5161', '6701', 'i', 'n', 'q', 'M', 't', 'J', 8331, 'm', 2741, 'R', 7345, 'c']