In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9075, 2725, 'g', 'I', 'U', 'X', '1519', 'E', '9201', '5489', 'L', 'z', 'n', 'i', '1251', 'B', '3979', '5277', 'c', 'I', 7621, 4507, 5647, 6319, 'D', 'B', 'T', 'g', 'r', 5203], ['c', 'C', 3597, 'c', 'U', 'X', '1519', 'E', '9201', '5489', 'L', 'z', 'n', 'i', '1251', 'B', '3979', '5277', 'o', 'G', 'm']