In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2785, 9357, 'L', 'A', 'w', 5765, 2105, 3745, 'v', 'H', 7735, 4687, 'U', 'L', 1071, 'K', 'A', 2217, 'S', 'b', 'b', '7701', 'a', '9949', 'q', 'a', 'u', '2245', 'N', '9315', 'b', 'u', 'b', 'p', 'e', 'T', '6913', '7559', 'J', '6085', '1715', '4665', '213', '4149', 'W', 'S', 'j', 'o'], [6057, 'V', 'r', 3951, 8589, 1181, 1801, 'y', '7701', 'a', '9949', 'q', 'a', 'u', '2245', 'N', '9315', 'b', 'u', 'b', 'p', 'e', 'T', '6913', '7559', 'J', '6085', '1715', '4665', '213', '4149', 'W', 'B', 5251, 'e', 'l', 'x', 'x', 'W', 'p', 7063, 'Q', 5575, 'Y', 'c', 4401, 555]