In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['U', 2745, 'u', 8439, 'x', 7823, 'Q', 'o', 'Q', 2127, 'r', 1699, 'l', 'R', 'i', 'z', 'A', 8987, 1807, 9493, 9075, 7907, 'W', 'Q', '5823', 'j', '10025', '1095', '3439', '7403', '7593', '1245', '5957', 'N', '6475', '5527', 'v', '8003', 'S', 's', '7699', 'c', 'U', '4125', 'E', 'f', '6081', '1837', 'R', 'E', 'I', 'M', 2753, 3385, 'E', 'j', 'h', 5095, 601, 'F', 't', 6303, 9139, 'o', 3419, 'q', 'w', 'k', 7479, 'a'], [2309, 7859, 'c', 967, 'q', 'a', 'M', 'C', 1493, 'Y', 883, 295, 729, '5823', 'j', '10025', '1095', '3439', '7403', '7593', '1245', '5957', 'N', '6475', '5527', 'v', '8003', 'S', 's', '7699', 'c', 'U', '4125', 'E', 'f', '6081', '1837', 'R', 'E', 'I', 'e', 'e', 8981, 8861, 'I', 1689, 9503, 4263, 3519, 'v', 'A', 2643, 'g', 'h', 'X', 'L', 7395, 'n', 2685, 'H', 'Q', 'f']