In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['C', 1249, 'f', 'L', 9973, 5043, 8893, 8113, 'I', 'x', 9099, 8827, 'O', '9427', 'T', '6143', '95', 'W', 'D', 'j', 'Q', '6041', 'm', 'T', '1353', 'L', '1673', 'w', 'v', 'N', 'B', 'w', 'e', 'E', 'c', 'q', 'f', 'v', 'H', 7873, 'T', 'Z'], ['X', 4143, 'X', 'o', 'O', 'q', 'k', 'q', 'P', 'L', 'n', 4043, 2067, 9857, 4403, 1993, 'R', 'k', 'Z', 'e', 'F', 2493, 213, 'O', '9427', 'T', '6143', '95', 'W', 'D', 'j', 'Q', '6041', 'm', 'T', '1353', 'L', '1673', 'w', 'v', 'N', 'B', 'w', 'e', 'E', 'c', 'q', 'f', 'v', 'G', 'e', 8543, 'J', 6939, 'O', 5839, 2141, 'c', 'U', 8731, 'N', 'Y', 9623, 4433, 6135, 'q', 4159, 3119, 'q', 3419, 'Y', 'm', 4903, 'R']