In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['X', 'I', 'I', 9263, 'X', 'P', 641, 'l', '6681', 'g', '1961', '7221', 'L', 'I', '1241', 'A', 'u', 'V', '1041', '2753', 'h', 2105, 'u', 8081], [2339, 'K', 2723, 6791, 2665, 1935, 5759, 'l', '6681', 'g', '1961', '7221', 'L', 'I', '1241', 'A', 'u', 'V', '1041', '2753', 'V', 3157]