In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[5451, 't', 'Q', 5199, 'A', 'P', '5961', '133', 'Q', 'V', '7547', '899', '6027', '439', 'u', 'l', 'o', 9943, 'b', 'm'], [1925, 'Q', 'D', '5961', '133', 'Q', 'V', '7547', '899', '6027', '439', 'H', 3347]