In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.

[1003, 'f', 915, 6157, 'f', '8755', '9351', '8069', 'p', '4459', '2249', '2409', '6327', 'C', 2921, 'O', 'H', 3139, 'k', 6843], [4887, 'z', 's', '8755', '9351', '8069', 'p', '4459', '2249', '2409', '6327', 'W', 'a', 'P', 7879, 2601, 's', 2793, 'p']
8755, 9351, 8069, p, 4459, 2249, 2409, 6327