In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3043, 9479, 's', 'Z', 'Y', '6117', '3001', '2153', '6547', '8501', '5981', 'q', 'G', 'd', '1653', 'C', 'k', 'T', '5167', '4977', '2147', 'i', 'm', '5263', '4305', '4099', 'Z', '2741', '3947', 'n', '1685', 'P', 3371, 4675, 4699, 2435, 'N', 3187, 5931, 3845, 2251, 9887, 5343, 'D', 7391, 1835, 317, 2493, 'Q', 9687, 3067, 'D', 8175, 7403, 'u', 'i'], [1397, 6961, 6883, 'l', 7279, 'U', 'n', 9081, 'S', 4213, 'a', 5069, 'k', 8587, 'y', 'O', 6199, '6117', '3001', '2153', '6547', '8501', '5981', 'q', 'G', 'd', '1653', 'C', 'k', 'T', '5167', '4977', '2147', 'i', 'm', '5263', '4305', '4099', 'Z', '2741', '3947', 'n', '1685', 'y', 1691, 6991, 'F', 'Z', 'W', 'N', 4929, 'c', 807, 4543, 'z', 783, 8173, 9227, 'q', 3975, 'y']