In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['n', 'x', 'F', 6517, 6535, 'q', 'v', 5987, 1287, 'g', 2305, 'I', '3651', '7979', '4677', 'T', 'S', 'q', '7035', 'F', 'o', '8211', '747', 'm', 'C', 'u', 'b', 8113, 7947, 9965, 7113, 'e', 'I'], [8211, 6747, 2155, 2425, 'I', 4895, 1393, 3929, 'S', 'v', 'm', 'P', 'I', '3651', '7979', '4677', 'T', 'S', 'q', '7035', 'F', 'o', '8211', '747', 'N', 'r', 8151, 'Z']