In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9273, 'C', 'u', 6963, 'W', 7827, 3953, 'p', 6281, 7421, 'j', 'Y', 'P', 253, 5393, 'k', 9437, 'f', 6067, 'l', 6167, 'j', 'o', 'y', 'R', '5165', 'K', '6947', '2583', '3721', 'u', 'b', 'e', 'G', 'B', '3777', '623', '8995', '7339', 'b', '8633', '6783', 'l', 'q', '9637', '2791', '6545', 'W', 'G', 'a', 'v', 'h', 3895, 'C', 719, 1945, 'S'], ['G', 4797, 'z', 9055, 'c', 't', 7175, 1231, 'I', 'X', 1415, 'n', 7801, 'K', 7581, 'X', 3735, 'a', 'R', '5165', 'K', '6947', '2583', '3721', 'u', 'b', 'e', 'G', 'B', '3777', '623', '8995', '7339', 'b', '8633', '6783', 'l', 'q', '9637', '2791', '6545', 'W', 'G', 'a', 'C', 'E', 'p', 'e', 'O', 'O', 9127, 'c', 6151, 5929, 'v', 'Z', 6375, 'F', 6255, 6803, 'Y', 'Z', 6865, 5889, 1719, 305, 5127, 'g', 'x', 8743]