In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9973, 1433, 'R', 9549, 'W', 6015, 'J', 1791, 'E', 'h', 6519, 'E', 'o', 'N', '7269', '179', 'G', '8689', 's', '7477', '6847', 'a', 'q', 'k', 'q', '8027', 'P', 'V', 'F', 'j', '455', '465', 'l', '4093', '1485', 'J', '4261', 'F', '8967', 'j', 7027, 'R', 'z', 'v', 'K', 7223, 'p', 'U', 'g', 'y', 'n'], ['o', 'F', 'i', 8963, 35, 2809, 1099, 7727, 'U', 'x', 'K', 159, 'n', 7619, 9297, 1927, 1397, 9837, 'V', 4047, 'E', 'o', 'N', '7269', '179', 'G', '8689', 's', '7477', '6847', 'a', 'q', 'k', 'q', '8027', 'P', 'V', 'F', 'j', '455', '465', 'l', '4093', '1485', 'J', '4261', 'F', '8967', 'P', 9187, 611, 2477, 'U', 'g', 8673, 3329]