In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['l', 5547, 2733, 8547, 'z', 'w', 'v', '499', '939', 'V', '5035', 'T', '9305', 't', '5977', 'm', '8289', 'U', 'J', '8011', 'x', '7243', '4607', '2537', 'b', 'o', 769, 's', 'k', 'X', 'X', 'O', 6687], [8147, 3403, 'Z', 5651, 1663, 'I', 'I', 'v', '499', '939', 'V', '5035', 'T', '9305', 't', '5977', 'm', '8289', 'U', 'J', '8011', 'x', '7243', '4607', '2537', 'K', 'J']