In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[1753, 'R', 3501, 'v', 'p', 4221, 623, 'P', 'v', '1185', 'm', 'z', '6131', '1085', 'B', '1805', 'N', '6835', 'm', 'V', 'R', '3761', 'I', 'e', 8893, 'W', 9091, 6221, 439], ['L', 'S', 6543, 2763, 5209, 'X', 'g', 'D', 'T', '1185', 'm', 'z', '6131', '1085', 'B', '1805', 'N', '6835', 'm', 'V', 'R', '3761', 'C', 'S', 1341, 'T', 4439, 7163, 'L', 'y', 5073, 5815, 2187, 2919]