In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[79, 6535, 3919, 'Q', 8689, 'L', '4225', 'X', 'Q', 'v', '6353', '757', 'v', 'l'], [7337, 'v', 't', 9129, 7699, 'v', '4225', 'X', 'Q', 'v', '6353', '757', 'p', 1733]