In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3323, 'c', 'H', 6217, 'l', 9091, 'd', '7143', '7421', '9851', '1633', 'B', 'S', 'e'], [529, 's', 'd', '7143', '7421', '9851', '1633', 'B', 'x', 379, 'v', 7905]