In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['m', 2399, 6137, 'f', 3549, 'N', 'Q', 8023, 6317, 3705, 3499, 5433, 'F', 7781, 'g', 9785, 8435, 'L', 7659, 6989, 4835, 'e', 4779, 'O', 's', '2415', 'F', '9695', 'V', 'W', 'D', 'V', 'O', '6149', '9841', '2447', 'm', '649', 'W', 'i', '7577', 'e', 'p', '4065', '435', 'M', '7279', 'N', 'H', '8235', 'n', 'M', 'd'], [2487, 8119, 'M', 7199, 'W', 7355, 6727, 541, 2701, 6983, '2415', 'F', '9695', 'V', 'W', 'D', 'V', 'O', '6149', '9841', '2447', 'm', '649', 'W', 'i', '7577', 'e', 'p', '4065', '435', 'M', '7279', 'N', 'H', '8235', 'B', 9103, 'u', 3085, 7087, 'y', 't', 6833, 'S', 'E']