In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3983, 1117, 'j', 9069, 'b', 's', 9475, 9357, 461, 'y', 3935, 'G', 671, 5789, 'i', 'e', 'R', 'O', 8389, 'o', 643, 'G', 'R', 'C', 'L', 445, '6979', '8179', '1523', '1039', 'c', 'f', 'V', 'H', '6603', 'T', 'X', '2043', '1321', 'A', 'i', 'l', 'K', '3693', '2989', '4365', 'h', '1269', 'Q', 'w', 'C', '3609', 'e', '2019', 'T', 9155], [6375, 'q', 'T', 'x', 'p', 'x', 5317, 1223, 'l', 3737, 'W', 'R', 'V', 'J', 'Q', 'u', 'j', 3769, 1761, 'j', 257, 'Y', '6979', '8179', '1523', '1039', 'c', 'f', 'V', 'H', '6603', 'T', 'X', '2043', '1321', 'A', 'i', 'l', 'K', '3693', '2989', '4365', 'h', '1269', 'Q', 'w', 'C', '3609', 'e', '2019', 'L', 'p', 'y', 'z', 'l', 'N', 'C', 'k', 7883, 5917, 'L', 165, 6115, 'P', 'b', 'X', 8631, 'M', 7159, 'I', 5623, 'U', 5347, 4889, 527, 7967, 'Z', 'd']