In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['l', 4603, 'H', 'r', 'D', 'I', 'j', '3761', 'z', 'B', '2691', 'd', '7225', 'B', 'v', 'T', 'O', 'L'], [9831, 2419, 'V', 2171, 'I', 'j', '3761', 'z', 'B', '2691', 'd', '7225', 'B', 'v', 'Z', 3153]