In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9917, 'V', 'o', 'G', 'j', 4343, 'W', 6161, 5047, 'f', 'T', 'T', 'V', 5775, 1207, 'V', 'V', 2441, 3975, 1163, 3477, 3841, 2837, 'G', 'Z', 'W', 'y', '6221', '8985', '6475', '421', 'a', '6981', '5543', 'k', 'A', '1999', '1939', '3461', 'X', '4161', '3987', '3597', '5017', '3519', 't', 'R', '4653', '7923', 'E', 'z', '4911', 'k', 'b', 'q', 'y', 'W', 'w', 'd', 7627, 9939, 'R', 5937, 'g', 'i', 10005, 'F', 4267], ['J', 'g', 'L', 'Y', 1539, 'm', 'c', 905, 4499, 'W', 'y', '6221', '8985', '6475', '421', 'a', '6981', '5543', 'k', 'A', '1999', '1939', '3461', 'X', '4161', '3987', '3597', '5017', '3519', 't', 'R', '4653', '7923', 'E', 'z', '4911', 'm', 4845, 'u', 'n', 'K', 8089, 9503, 3345]