In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['i', 'w', 225, 'z', 7983, 2491, 5835, 'O', 'U', 925, '869', 'F', '755', '3305', 'L', '2603', 'D', 's', '7085', '3555', 'R', 8683], ['W', 'S', 6215, 'R', '869', 'F', '755', '3305', 'L', '2603', 'D', 's', '7085', '3555', 'p', 2427, 9625, 3831, 'q', 'L', 287, 8537, 'C']