In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9665, 7543, 'i', 447, 'Z', 8479, 'c', 'e', 'j', '6201', '9611', '2965', 'i', '235', 'S', 'w', 'e', '7629', '21', 'c', 'a', '5877', 'H', '4869', 'y', 'E', '4489', '1499', '6423', '3559', 'O', 8921, 6625, 'F', 'g', 'g', 'M', 9107, 'n'], ['n', 'u', 5869, 'h', 'U', 'B', 'T', 'I', 'U', 'l', 'y', 9397, 'd', 'b', 'e', 'j', '6201', '9611', '2965', 'i', '235', 'S', 'w', 'e', '7629', '21', 'c', 'a', '5877', 'H', '4869', 'y', 'E', '4489', '1499', '6423', '3559', 's', 'q', 7485, 7619, 3379, 6111, 'L', 'b', 'v', 4695, 8073, 5839, 6367, 951, 'c', 5365, 'p', 8733, 8723, 2673, 'i', 817, 'b']