In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3755, 4389, 'E', 'Y', 5057, 'i', 8497, 7937, 'A', 'E', 5747, 5803, 'n', 'E', 2635, 'W', 'x', '67', 'g', 'Q', 'K', '3381', '1919', 'm', 'X', '8185', '6089', 'F', '3951', '3829', '3251', '9899', '6619', 'v', 'A', '6113', '1423', 'z', 'Y', 'n', 'K', 'X', 'J', 'H', 3889, 'F', 'N', 'v', 4937, 'C', 'f', 'l', 'a', 'n'], ['V', 9321, 6527, 7041, 4537, 'F', 9197, 'C', 'v', 1989, 5855, 575, 3131, 'x', '67', 'g', 'Q', 'K', '3381', '1919', 'm', 'X', '8185', '6089', 'F', '3951', '3829', '3251', '9899', '6619', 'v', 'A', '6113', '1423', 'z', 'B', 'o', 5291, 497]