In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['G', 4429, 'i', '8057', '181', '8709', '4961', 'z', 'c', 'r', 't', 'F', 4703, 8661], ['j', 'v', 'K', '8057', '181', '8709', '4961', 'z', 'c', 'r', 'v', 4817, 3649, 'q']