In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['Q', 'K', 'Y', 'G', 8897, 'O', 3505, 8489, 'W', 4441, 6085, 1107, 203, 'L', 'a', 'x', 9257, 3085, 3405, 7233, 'g', 'f', '8623', '7691', '6743', '3745', '8297', '8483', 'H', '8337', 'O', 'm', 'v', 'D', 'H', 'J', 'A', 'z', 'n', '4209', '1297', 'L', '3813', '6203', 'T', 'N', 'd', '8925', '1069', 'C', 'r', 'C'], [2805, 3921, 'g', 'f', '8623', '7691', '6743', '3745', '8297', '8483', 'H', '8337', 'O', 'm', 'v', 'D', 'H', 'J', 'A', 'z', 'n', '4209', '1297', 'L', '3813', '6203', 'T', 'N', 'd', '8925', '1069', 'f', 'O', 5901, 6913, 2101, 'E', 3705, 3855, 'p', 5657, 'H', 1099, 't', 9257, 1259, 'u', 'M', 6433, 's', 5479]