In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['n', 'v', 'F', 7539, 8335, 'A', 'c', 6467, '2381', 'W', '1909', 'j', '6603', 'y', 'D', '9471', 'Z', '323', 'g', '8755', '5375', 'K', 'O', 2555, 5697, 7913, 1887, 8081], [6027, 7073, '2381', 'W', '1909', 'j', '6603', 'y', 'D', '9471', 'Z', '323', 'g', '8755', '5375', 'K', 'C', 's', 'p', 6913, 't', 'S', 6797, 'k', 8403, 3213]