In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7821, 'i', 1733, 'u', 259, 'v', 7995, 3039, 'J', 8777, 'F', 'h', 'i', 'b', 'h', 'h', 'x', '8467', '2867', '3595', '1113', '4083', 'b', '65', '2233', 'a', '4207', 'c', 'W', 'd', 8105, 'X'], [4431, 'w', 5455, 'A', 'G', 6025, 'n', 1683, 'm', 7933, 'z', 8735, 'o', 7625, 'b', 'h', 'h', 'x', '8467', '2867', '3595', '1113', '4083', 'b', '65', '2233', 'a', '4207', 'D', 'I', 'H', 'n', 4445, 1631, 'S', 'l', 6009, 'j', 'k', 'I']