In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6699, 'u', 'z', 'f', 'c', 2141, 'S', 7763, 8249, 'A', 3445, 'A', '7627', 'B', 'Q', 'v', 'N', 'Q', 'X', 'W', '5091', 'B', 'Z', 'c', 'I', 'c'], [6945, 'n', 'A', '7627', 'B', 'Q', 'v', 'N', 'Q', 'X', 'W', '5091', 'B', 'E', 6579, 445, 's', 'O', 'O', 'F', 'F', 2673, 6385]