In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['o', 1821, 'Y', 7155, 'i', 'x', 5847, 'U', 'B', 7681, 'B', '445', '8049', 'v', '959', 'q', '3125', '6667', '5973', 'F', 'Y', '7437', 'I', 'd', '2799', '1727', '2273', '263', 'e', 'm', 'C', '3145', '7219', 'O', 'b', 7629, 'T'], [7649, 1945, 'l', 'd', 'x', 'y', 4125, 'Z', 4653, 'o', 6011, 'D', 'o', 'H', 'U', 'V', 'l', 'a', 'h', 4191, 4637, 'B', '445', '8049', 'v', '959', 'q', '3125', '6667', '5973', 'F', 'Y', '7437', 'I', 'd', '2799', '1727', '2273', '263', 'e', 'm', 'C', '3145', '7219', 'u', 7459, 6353, 3031, 2019, 'k', 'Q', 5393, 8879, 4067, 4525, 't', 'r', 'h', 'C']