In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[1183, 8671, 1617, '3319', 'o', '5957', '4187', '3173', 'C', 'v', '3277', '9265', 'b', 'V', 'x', '4179', '4483', 'p', 'r', 2671, 'j', 973, 'F', 8019, 3623, 1311, 'U'], [6137, 6953, 'g', '3319', 'o', '5957', '4187', '3173', 'C', 'v', '3277', '9265', 'b', 'V', 'x', '4179', '4483', 'p', 'm', 1685, 't', 'd', 2713, 2575, 'X', 5637]