In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6785, 461, 's', 'R', 7447, 'I', 7271, 6065, 'c', 2243, 5481, 1691, 'T', 9097, 'i', 6309, 'z', 'd', 'r', 1871, 1205, '3735', '7985', 'e', 'W', '1409', 'z', '9831', '1345', '7753', 'L', 'v', '8519', '8185', 'S', 'O', '6689', '4761', '5705', '8611', 'Y', 'P', 'Q', '2415', '5447', '5227', '3225', '221', 'k', '2299', 'b', 'k', 'q', 'O', 'h', 821, 7957, 4429, 7561, 8825, 7367, 'c', 'o', 2089, 's', 3907, 'e', 3777, 4909, 3903, 2551, 2337, 'B', 9445, 'r', 6061], [1027, 3355, '3735', '7985', 'e', 'W', '1409', 'z', '9831', '1345', '7753', 'L', 'v', '8519', '8185', 'S', 'O', '6689', '4761', '5705', '8611', 'Y', 'P', 'Q', '2415', '5447', '5227', '3225', '221', 'k', '2299', 'S', 831, 6511, 'i', 725, 4427, 'e', 'E', 'T', 1621, 141, 'y']