In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['G', 'q', 9411, 't', 'W', 'v', 'e', '4471', 'v', 'j', '3219', '5141', 'j', 'u', 't', 't', 'M', 8243, 4833, 8575, 3891, 8673, 6333, 1865], ['l', 'b', 'v', 'e', '4471', 'v', 'j', '3219', '5141', 'j', 'u', 't', 'J', 'j', 3473, 8911, 3155, 'i', 'd']