In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['X', 'Z', 5387, 9217, 2701, 'A', 'U', 'w', 'g', 621, 'u', 'Q', 'O', 3827, 'I', 2601, 3889, 6041, 789, 8761, 3809, 8605, 919, 'Q', 'P', 9575, 'b', 'o', 'q', 4067, 'p', '7505', '1793', '6561', 'i', '2987', 'U', '7509', 'r', '8035', '1797', '4025', 'l', '4773', '2913', '1799', '485', '6967', 'C', '7523', '7417', 'v', '5993', 'O', '799', 'k', '9529', 'L', 'n', 'X', 'l', 'i', 443, 6435, 'z', 'e', 's', 'J', 2437, 'U', 'O', 'S', 'y', 'u', 1249, 6307, 3103, 'H', 'f', 'F'], ['H', 'D', 5089, 6179, 'r', 'U', 'H', 'o', 6153, 5455, 'A', 753, 'a', 1281, 2973, 5025, 'v', 2945, 'r', 'p', '7505', '1793', '6561', 'i', '2987', 'U', '7509', 'r', '8035', '1797', '4025', 'l', '4773', '2913', '1799', '485', '6967', 'C', '7523', '7417', 'v', '5993', 'O', '799', 'k', '9529', 'L', 'n', 'X', 'u', 'W', 1795, 'r', 'u']