In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2863, 2273, 'p', '8653', '6045', 'N', 'N', 'p', '1787', 'D', 'Y', '6847', 'h', 'M', '177', '2883', 'l', '3763', 'S', 'K', 'A', 's', 'i', '1483', 'u', 6065, 187, 'c', 'r', 6077], ['Q', 9327, 'v', 'b', 'c', 'W', 3593, 'y', 2211, 7883, 6035, 'O', 'p', '8653', '6045', 'N', 'N', 'p', '1787', 'D', 'Y', '6847', 'h', 'M', '177', '2883', 'l', '3763', 'S', 'K', 'A', 's', 'i', '1483', 's', 'Y', 4419, 'S', 1895, 6561]