In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['O', 4663, 'j', 7561, 'T', 'Q', 143, '7857', 'd', 'M', '8113', 'k', '2743', '6313', 'a', 'Q', 'N', 393, 8809, 145], [10001, 919, 845, 9093, 'z', '7857', 'd', 'M', '8113', 'k', '2743', '6313', 'a', 'm', 7771]