In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['V', 'c', 3991, 'O', 8587, 'B', 'b', 'D', 1671, 'H', 'T', 'y', 8671, 'R', 'H', '259', '4791', '3545', 'I', '3959', 'f', 'S', 'r', 'w', '7851', 'k', 'f', '3579', '75', '4689', '839', '8023', '4931', 'p', 'G', 's', 'd', 'r', 6533, 6601, 'Q', 3389, 6015, 'c', 'H', 3489, 'N', 6067, 'g', 'r', 913, 3387, 'q'], [1639, 'j', 2705, 'o', 'U', 8879, 6999, 'r', 875, 481, 2383, 'a', 'H', 7089, 3621, 'o', 'R', 'H', '259', '4791', '3545', 'I', '3959', 'f', 'S', 'r', 'w', '7851', 'k', 'f', '3579', '75', '4689', '839', '8023', '4931', 'p', 'G', 's', 'N', 5829, 'T', 'B', 'H', 's', 3907, 'D', 'h', 6357, 'r', 'm', 9165, 'x', 585, 8693]