In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['x', 243, 'e', 'n', 9467, 'I', 'L', 4575, 'i', '6569', '381', 'I', '2155', '7785', 'e', 't', '5963', '5557', '2339', 'G', 'n', 'k', 905, 'W', 'J', 9685, 'h'], [5785, 'i', 'i', 'M', 4053, 933, 2435, 'k', 'h', '6569', '381', 'I', '2155', '7785', 'e', 't', '5963', '5557', '2339', 'k', 'W', 2759]