In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6279, 1571, 'i', 1661, 'C', 'X', '7863', '1745', '6927', '2527', '443', 'T', 'o', '6373', '2393', 'z', '8051', '9481', 'Q', 's', 5261, 49, 'v', 1057, 9499, 'm'], ['M', 7715, 'H', 'C', 'X', '7863', '1745', '6927', '2527', '443', 'T', 'o', '6373', '2393', 'z', '8051', '9481', 'Q', 'g', 'O', 'R', 'A', 2135, 4289, 'N', 8919, 9443, 6231, 2917, 'J']