In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4675, 2539, 6917, 'W', 8493, 3645, 'K', 'y', '7861', '243', 'W', '8887', 'v', '279', '4651', 'P', '6995', '9939', 'T', 'C', '9345', '4645', 't', 'X', 'J', 'f', 'q', '1295', '6491', '4631', 'u', '4275', '8913', '3799', '8117', '2769', 'f', 'x', 359, 'v', 163, 'Y', 'd', 1291, 5153, 7277, 8011, 6425, 'I', 'P', 'E', 'T', 3973, 'K', 'I', 'n', 'O', 7803, 9495, 3149], ['v', 'R', 681, 'E', 4513, 3827, 425, 5125, 287, 3521, 9775, 'z', 'V', 'W', 'y', 8761, 983, 'c', 6181, '7861', '243', 'W', '8887', 'v', '279', '4651', 'P', '6995', '9939', 'T', 'C', '9345', '4645', 't', 'X', 'J', 'f', 'q', '1295', '6491', '4631', 'u', '4275', '8913', '3799', '8117', '2769', 'a', 597, 'g', 2949, 973, 1275, 3061, 8813, 'x', 7169, 't', 'z', 9429, 'w', 1315, 7983, 'H']