In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4267, 2451, 'A', 'T', 'l', 'S', 'S', '2263', 'r', '267', 'A', 'a', 'i', '5073', '285', '371', '8151', '8345', '9077', 'g', 'B', 'm', 861, 4433, 7373, 113], [2355, 'd', 'V', 4671, 'G', 'c', 'X', 'S', 5035, 6599, 'S', '2263', 'r', '267', 'A', 'a', 'i', '5073', '285', '371', '8151', '8345', '9077', 'M', 'b', 'F', 3819, 8031, 1507, 5287, 839, 4559, 'e']