In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['u', 575, 'K', 'V', 'W', '4795', 'V', '3131', 'S', 'h', 'D', '6911', 'D', '6953', '7457', '8307', '327', 'P', '2735', '8959', 'z', '9639', '183', '8021', '49', 'B', 'E', 'f'], [8133, 'K', 1377, 7709, 4695, 'q', 5723, 'k', 8431, 's', 'W', '4795', 'V', '3131', 'S', 'h', 'D', '6911', 'D', '6953', '7457', '8307', '327', 'P', '2735', '8959', 'z', '9639', '183', '8021', '49', 'w', 5013, 8031, 3413, 2273, 1943, 'W']