In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7597, 6201, 'j', 'I', 'i', 99, 9227, 1075, 2215, 899, 'Y', '8993', 'd', 'R', 'J', 'm', 'W', 'j', 'G', 'F', 'U', 'Y', 'y', 'D', '2829', 'V', '4685', '5433', '3761', 'r', 'N', 1721, 'i', 'C', 3197, 'N', 2787, 9579, 'd', 4329, 7483], [4409, 't', 'v', 8609, 7903, 639, 7643, 3253, 1039, 'Y', '8993', 'd', 'R', 'J', 'm', 'W', 'j', 'G', 'F', 'U', 'Y', 'y', 'D', '2829', 'V', '4685', '5433', '3761', 'r', 'j', 'u', 'a', 'd', 3067]