In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['t', 'V', 4425, 'x', 4005, 'P', 'Q', '1697', '2639', 'u', '6893', 'N', 'U', '3819', 'd', 'm', '1283', 'k', 6225, 'F'], [2787, 'A', 325, 6717, 7667, 8033, '1697', '2639', 'u', '6893', 'N', 'U', '3819', 'd', 'm', '1283', 'Q', 'M', 3, 'L', 8081, 7803, 'X', 'G']