In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['O', 'W', 7257, 2355, 'Z', 't', 4509, 1567, 5199, 6689, 's', 1477, 'm', 't', '8411', 'B', 'F', 'v', '7779', '4767', 'j', '4707', '3511', '971', 'A', 'h', 'd', 'D', '1201', 'H', '5537', 'w', 't', 'V', 'x', 'W', 'F', '6417', 'e', 'T', 'S', 7465, 6765, 8063, 'q', 's'], [6845, 6777, 'L', 467, 1533, 'j', 5125, 2979, 2875, 2187, 3811, 'B', 839, 1795, 'O', 's', 'o', 'G', 'C', 'e', 'K', 'G', 115, '8411', 'B', 'F', 'v', '7779', '4767', 'j', '4707', '3511', '971', 'A', 'h', 'd', 'D', '1201', 'H', '5537', 'w', 't', 'V', 'x', 'W', 'F', '6417', 'o', 2219, 'w', 'u']