In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[1803, 9733, 4687, 2241, 'f', 3067, 'U', 'T', 'w', '7315', '8221', 'Q', '9995', 'x', 'o', 'X', '745', '8009', '325', 'w', '4991', '2437', 'e', 'n', 'y', 5483, 'v', 4525, 'Q', 't', 8561, 9921, 1403, 8905], ['s', 'm', 3551, 1437, 3157, 'W', 'F', 4603, 'v', 6035, 7143, 3979, 'H', 5459, 'T', 'w', '7315', '8221', 'Q', '9995', 'x', 'o', 'X', '745', '8009', '325', 'w', '4991', '2437', 'u', 6189, 7255, 'T', 'C', 4193, 8895, 'E', 959, 'H', 283, 'B', 'j', 8889]