In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['k', 'O', 'w', 'k', 7783, 'J', 'M', 'm', '6937', '6453', '7429', '6453', '1387', '969', '5019', '3711', '9363', 'V', '2457', 'Z', '8589', '195', '8277', 'v', '2487', 'R', 2383, 5403, 273, 8815, 693, 'V'], ['U', 'V', 'X', 3109, 3071, 'h', 'a', 'u', 1417, 'T', 8419, '6937', '6453', '7429', '6453', '1387', '969', '5019', '3711', '9363', 'V', '2457', 'Z', '8589', '195', '8277', 'v', '2487', 'q', 'i', 6179, 4637, 6953, 'Q', 4565, 579, 2921, 's', 'E', 7797, 'x', 213]