In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['c', 6513, 'E', 2253, 6059, 109, 'G', 3707, 'y', 'M', 'L', 3921, 'R', 8473, 'R', 'O', 'v', 647, '2387', '2869', 'L', 'I', 'T', 'c', '6493', 'g', 'F', '4377', '9169', '3669', 'J', 'h', '2237', 'U', 'x', 'b', 'c', 'l', '5115', 's', 'T', '4645', 'e', 'Y', 8645, 8683, 1491, 'h', 'i', 'E', 9657, 4745, 'N', 1877, 4247, 2783, 8281, 4595, 'g', 6281, 8231, 5617, 'X', 4177], [5167, 'x', 141, 7651, 9701, 'Z', 3341, 'p', 'T', 5971, '2387', '2869', 'L', 'I', 'T', 'c', '6493', 'g', 'F', '4377', '9169', '3669', 'J', 'h', '2237', 'U', 'x', 'b', 'c', 'l', '5115', 's', 'T', '4645', 'e', 'm', 4471, 1669, 'r', 6905, 'Q', 3305, 7419]