In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7171, 4913, 347, 8987, 10005, 'e', 9085, 5581, 'h', 'z', 4163, 'O', 'r', 'P', 'v', '5311', 'W', 'm', 'H', '3313', '1557', '2177', 'V', '6863', 'f', 'A', 'w', '2271', '6077', 'i', '3011', 'H', 'a', 'u', 'y'], [6765, 'v', 's', 9115, 2979, 4199, 6405, 'I', 665, 'k', 4055, 'y', 'H', 's', 'X', 'v', '5311', 'W', 'm', 'H', '3313', '1557', '2177', 'V', '6863', 'f', 'A', 'w', '2271', '6077', 'i', '3011', 'H', 'a', 'S', 'J', 'o', 9061, 'I', 'b', 759, 1725, 'i', 91, 'z', 3045, 'G', 'U', 'P', 'U']